Checklist of Chalcidoidea and Mymarommatoidea (Hymenoptera) of Canada, Alaska and Greenland
expand article infoJohn T. Huber, Andrew M. R. Bennett§, Gary A. P. Gibson|, Y. Miles Zhang, D. Christopher Darling#
‡ Natural Resources Canada c/o Canadian National Collection of Insects, Ottawa, Canada
§ Agriculture and Agri-Food Canada, Ottawa, Canada
| griculture and Agri-Food Canada, Ottawa, Canada
¶ University of Florida, Gainesville, United States of America
# Royal Ontario Museum, Toronto, Canada
Open Access


A checklist of 1246 extant, described species, classified in 346 genera in 18 families of Chalcidoidea (Hymenoptera) are reported from Canada, Alaska (USA) and Greenland (Denmark) based on examined specimens and published records up to December 31, 2020. Of the reported species, 1214 (in 345 genera in 18 families) are listed from Canada, 113 (in 58 genera in 10 families) from Alaska, and 26 (in 22 genera in 4 families) from Greenland. The list includes 235 new species records and 53 new generic records for Canada (no new family records). Forty-one new species records, 22 new generic records and the families Chalcididae and Eurytomidae are newly reported for Alaska. No new records were found for Greenland. Two species (in one genus) of Mymarommatoidea are reported from Canada. For each species in Canada, distribution is tabulated by province or territory, except the province of Newfoundland and Labrador is divided into the island of Newfoundland and the region of Labrador. The inclusion of known species from Alaska and Greenland results in the first comprehensive distributional checklist for the entire northern part of the Nearctic region. A brief review of the history of cataloguing Chalcidoidea in North America and a comparison of this checklist with four published checklists from the Palaearctic region is provided.


Microhymenoptera, Nearctic region, northern North America, species distributions


The superfamily Chalcidoidea is one of the most diverse groups of organisms on the planet (Figs 213). More than 22,700 species are described (Huber 2017), but Heraty et al. (2013) estimated that there might be up to 500,000 species worldwide. Most chalcidoids, for which the biology is known, are parasitoids, having been reared from a wide variety (12 orders) of Insecta, and also 2 orders of Arachnida and the family Anguinidae (Nematoda) (Gibson 1993). A few are predators and some are phytophagous. For more comprehensive information on the biology of Chalcidoidea see, e.g., Clausen (1940), Askew (1971), Bendel-Janssen (1977), Gordh (1979a), Gauld and Bolton (1988), Hanson and Gauld (1995), Noyes (2019). In addition to Chalcidoidea, the small superfamily Mymarommatoidea is also included in this paper because it is generally considered to be the sister group to Chalcidoidea (Gibson et al. 2007; Huber et al. 2008; Heraty et al. 2013). The biology of Mymarommatoidea is unknown, except that one has been reared from a bracket fungus and most are collected in shady, moist areas such as deciduous forests (Huber et al. 2008).

The first published cataloguing efforts for Chalcidoidea of the Nearctic region began with Peck (1951), with supplements by Burks (1958, 1967b). Peck (1963) catalogued the literature for each species up to and including 1958. The families comprising the Chalcidoidea section in Krombein et al. (1979) were catalogued by B. Burks, G. Gordh, and E. Grissell, former chalcidologists at United States National Museum of Natural History, Washington, DC (USNM), and included the relevant taxonomic literature to the end of 1972 or 1976 depending on the family. These catalogues also included species and records from Greenland. In his acclaimed Universal Chalcidoidea Database (UCD) for world Chalcidoidea, Noyes (2019) included the data from these previous catalogues. His database is now the only comprehensive compilation of taxonomic, biological, distributional and literature source information for world Chalcidoidea for the past 40–50 years, though it has not been updated since March 2019. Among other searches, it can be used to generate numbers and lists of Chalcidoidea names for any biogeographical region or country, and political subdivision within larger countries. Building on the information contained in the UCD, it is the purpose of this paper to provide the first checklist of the Chalcidoidea and Mymarommatoidea of Canada, Alaska and Greenland incorporating previously published, substantiated records as well as new records based on authoritatively identified specimens.


Sources of data

All records are substantiated by evidence, either collection- or literature-based. The vast majority of records in this checklist are based on specimens in the Canadian National Collection of Insects, Arachnids and Nematodes, Ottawa (CNC). Additional distributional records, for which specimens could not be examined, were obtained by mining previous literature. Because of the relatively poor knowledge of Chalcidoidea, regional collections were generally not consulted because of the immense amount of work required to identify and curate most specimens in these collections. However, a few records were based on examination of specimens (or their photographs) deposited in other collections, as follows: Royal Alberta Museum, Edmonton, Alberta, Canada (PMAE: M. Buck); Royal Ontario Museum, Toronto, Ontario, Canada (ROM: C. Darling); Royal Saskatchewan Museum, Regina, Saskatchewan, Canada (RSKM: C. Sheffield), University of Alaska, Fairbanks, Alaska, USA (UAM: D. Sikes). Whereas most records are Canadian, records from Alaska (USA), Greenland (Denmark) and the 242 km2 French Overseas Collectivity of Saint Pierre and Miquelon islands located 25 km from the southern coast of Newfoundland are also included so as to provide complete coverage of the northern part of the Nearctic region. Most of the Alaska species records (74 of 113) were based on specimens in collections (CNC and UAM). The remainder were literature records, primarily from the chapters in Krombein et al. (1979), which mostly catalogued specimens in the USNM. The Greenland records were taken almost exclusively from the relevant chapters in Böcher et al. (2015) with some records substantiated by specimens in the CNC. The single species recorded from Saint Pierre and Miquelon was obtained from the TAXREF database (Gargominy et al. 2020) managed by the Muséum national d’Histoire naturelle, Paris, but specimens were not examined and this species is only discussed in the text, not included in Table 2. Because of relatively poor sampling of the chalcidoids of these last three regions, it is likely that the current survey is not as complete for them as it is for Canada. All records published up to December 31, 2020 were evaluated for the current checklist.

We exclude from the checklist the very few fossil species of Chalcidoidea described from Canadian Cretaceous amber; all are now classified in Mymaridae (Poinar and Huber 2011) and Rotoitidae (Gumovsky et al. 2018). Further, species introduced into Canada from other countries for biological control against introduced pests are included only if there is irrefutable evidence that they became established after release. Often, no follow up surveys were undertaken to determine if the species released had established and so their continued presence is unsubstantiated. Because there is no single compilation of intentionally released species, one must search for their names in the five volumes on biological control in Canada: McLeod et al. (1962), Kelleher et al. (1971), Kelleher and Hulme (1984), Mason and Huber (2002) and Mason and Gillespie (2012). At least 18 species are or were commercially produced in Canada (Mason and Huber 2002), 14 of which are included in the checklist. The other four species, Aphytis melinus DeBach, Eretmocerus californicus Howard, Metaphycus helvolus (Compere) and Trichogrammatoidea bactrae Nagaraja, occur in the southern states of USA or outside the Nearctic region on pests of crops not, or not extensively, grown commercially in Canada so are most unlikely to be found there. Some of the commercially produced species may establish more or less permanent populations in areas where they are released, often in large numbers at intervals (usually in greenhouses) or may occur naturally outside the facilities that produce them. We do not include any records in Table 2 that are solely known from websites such as iNaturalist, BugGuide or online databases of specimens in museums because for Chalcidoidea, examination of specimens with reference to authoritatively identified material is generally required. Finally, we only include described species, not undescribed taxa or specimens identified only to genus.

Presentation of data

Distributions of taxa are indicated using acronyms of 18, mostly political, regions of northern (mostly north of 45° latitude) North America. For practical purposes the province of Newfoundland and Labrador is divided into the island of Newfoundland and the region of Labrador on mainland Canada. The acronyms used for the regions are: CAN = Canada, AK = Alaska (USA), GL = Greenland, SPM = Saint Pierre and Miquelon. Within Canada, the regions are: AB = Alberta, BC = British Columbia, LB = Labrador, MB = Manitoba, NB = New Brunswick, NF = Newfoundland island, NS = Nova Scotia, NT = Northwest Territories, NU = Nunavut, ON = Ontario, PE = Prince Edward Island, QC = Quebec, SK = Saskatchewan, YT = Yukon Territory. All regions are shown in Fig. 1. The distributional data are presented in two ways. Table 1 is a summary of the numbers of described, recorded species of Chalcidoidea and Mymarommatoidea in Canada, Alaska and Greenland (not including Saint Pierre and Miquelon) totalled for each family for all 17 regions. Table 2 is the species checklist arranged alphabetically by family for the same 17 regions. It contains three types of distributional records: 1) a published record for which we have examined a specimen; 2) a new (unpublished) record for which we have examined a specimen; and 3) a published record for which we have not examined a specimen, but is well-substantiated (see Assessing credibility of records section in Bennett 2021a). The different types of records are indicated by different fonts and colours in Table 2 (see Table heading). The absence of a provincial or territorial acronym for a species recorded from Canada indicates that the taxon was recorded from Canada but no province was specified. Literature references (shown in the far right column of Table 2) are only noted for previously published records for which no specimens were examined. Authors’ names that have been spelled in different ways, such as with or without diacritic marks, are spelled in only one way for consistency, for example, Förster, not Foerster. Literature references for published records for which specimens were examined are not provided as this would dramatically increase the size of the study and make it practically impossible to present the distributional data in a table format. We do provide an extensive, but by no means comprehensive, list of references for higher taxa, e.g., revisions of genera and regional checklists, which are cited directly under the higher taxon names in Table 2. Our list is not a catalogue so synonyms and homonyms are generally excluded; these can be found in UCD. In addition to the published checklist, the data presented in Table 2 have been added to Canadensys ( and are also registered on GBIF (Bennett 2021b).


The family classification in Chalcidoidea has been extremely volatile, varying from 1 to 23 recognized families (see Grissell and Schauff 1997), with changes even in the last few years and more changes likely in the future. We mainly follow the family classification in Heraty et al. (2013) in which 22 families were recognized, except we also recognize the family Megastigmidae, which was raised from subfamily status within Torymidae by Janšta et al. (2018). Five extant families, the Agaonidae, Cynipencyrtidae, Eriaporidae, Rotoitidae, and Tanaostigmatidae do not occur in northern North America. Species of Agaonidae are associated exclusively with figs (Ficus spp.), which do not naturally occur in Canada, Cynipencyrtidae consists of one genus and species in Asia, Eriaporidae occur only in the Old World, the two described species of Rotoitidae occur only in Chile and New Zealand, and species of Tanaostigmatidae occur in the New World only as far north as the southern states of USA.

Results and discussion

A total of 1246 described, extant species of Chalcidoidea in 346 genera in 18 families are listed for Canada, Alaska and Greenland (Tables 1 and 2). Of these, 1214 species, classified in 345 genera in 18 families, are listed from Canada. To place the current number of species in perspective, it represents a 149% increase from the 500 species reported in Danks (1979). In terms of relative species richness within Hymenoptera, Chalcidoidea species comprise 13.5% of the 9250 species recorded in northern North America and 13.6% of the 8933 recorded in Canada (Bennett 2021a). Yet in comparison to other areas of the world the number of Chalcidoidea is relatively low. Gijswijt (2003) recorded 1085 species of Chalcidoidea for The Netherlands, Weber et al. (2018) 1964 species (and likely about 380 more) for Germany, Dale-Skey et al. (2016) 1754 species for Great Britain and Ireland, and Belokobylskij et al. (2019) 2307 species for Russia, other countries that have recently published checklists for Chalcidoidea. Britain and Ireland together (313,100 km2) are only about 3.2% the size of Canada (9.985 million km2), but despite this, the 1754 species recorded from there is almost 1.5 times greater than all the species we record from Canada. Canada and Russia have a much greater variety of ecozones and habitats than does Britain and Ireland, which have little or no tundra, temperate rain forest, grassland or semi-desert. While the colder climate over much of Canada contributes to the apparently depauperate fauna this is not the main reason. Lack of collecting as well as lack of study of what has been collected, in groups other than those of research interest to the few taxonomists who study Chalcidoidea in Canada, is probably the main factor contributing to poor knowledge of species and their distributions.

Table 1.

Described, recorded species of Chalcidoidea and Mymarommatoidea in Canada, Alaska and Greenland totalled for each taxon and in each region. See Methods for acronyms used for the regions and Fig. 1 for their locations. Regions are arranged generally north to south and west to east.

Aphelinidae 38 38 (12) 0 0 0 0 11 9 6 5 27 20 8 1 8 0 1 0
Azotidae 1 1 (0) 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0
Chalcididae 39 39 (7) 3 2 1 0 13 9 14 16 29 17 5 1 2 0 1 0
Encyrtidae 110 100 (23) 4 2 3 1 33 23 16 14 69 35 23 5 22 1 5 10
Eucharitidae 8 8 (0) 1 1 1 0 4 7 3 2 6 3 3 2 1 0 0 0
Eulophidae 379 374 (62) 43 23 34 2 133 108 61 87 285 191 107 18 89 5 28 6
Eupelmidae 28 28 (7) 0 0 0 0 8 6 3 4 20 8 4 3 3 0 0 0
Eurytomidae 87 87 (15) 4 5 3 0 35 27 21 20 65 44 9 8 11 2 0 0
Leucospidae 1 1 (0) 0 0 0 0 1 1 1 1 1 1 1 1 1 0 0 0
Megastigmidae 21 21 (5) 3 2 2 1 11 5 3 4 12 10 3 2 3 2 3 0
Mymaridae 96 94 (7) 12 5 8 0 29 19 4 9 67 46 10 10 18 0 1 1
Ormyridae 9 9 (3) 0 0 1 0 2 2 0 2 7 4 2 0 3 0 0 0
Perilampidae 20 20 (6) 0 2 0 0 8 9 8 3 14 13 5 4 5 0 0 0
Pteromalidae 309 295 (71) 36 22 20 3 111 98 57 58 186 136 64 21 49 3 16 9
Signiphoridae 1 1 (0) 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0
Tetracampidae 4 4 (0) 0 0 0 0 0 1 0 0 4 3 1 0 0 0 0 0
Torymidae 60 59 (17) 3 3 3 0 28 20 9 14 41 22 8 2 5 0 1 0
Trichogrammatidae 35 35 (0) 4 2 2 0 13 11 1 6 17 13 4 1 3 0 0 0
CHALCIDOIDEA 1246 1214 (235) 113 69 78 7 440 355 207 245 852 566 257 79 223 13 56 26
MYMAROMMATOIDEA 2 2(0) 0 0 0 0 0 0 0 0 2 1 1 0 0 0 0 0

Based on sequencing of the DNA barcode region of cytochrome oxidase I (COI) and using the Barcode Index Number (BIN) criterion of Ratnasingham and Hebert (2013) that 2% sequence divergence is indicative of species differences, Bennett et al. (2019) estimated that there are 3301 species of Chalcidoidea from Canada in the Barcode of Life Data System (BOLD) database (Ratnasingham and Hebert 2007). This represents 2.7 times the number of recorded named species of Chalcidoidea in Canada. These BINs have not yet been reconciled against the names in the checklist so the percent congruence is unknown, but it illustrates that there are many unrecorded species. The comparison of COI sequences from unidentified specimens against those of named species in such databases as BOLD will certainly help to reveal yet more species to add to the checklist, e.g., Anastatus reduvii (Howard) (Eupelmidae), a recent, accidentally introduced parasitoid of the major pest Halyomorpha halys Stål (Hemiptera: Pentatomidae) (Gariepy and Talamas 2019).

Compared to Canada, the number of species of Chalcidoidea recorded from Alaska and Greenland is far lower (113 species in 58 genera in 10 families from Alaska and 26 described species in 22 genera in 4 families from Greenland) (Tables 1, 2). The summary of the entomofauna of Greenland (Böcher et al. 2015) included records from six chalcidoid families, but specimens of Aphelinidae and Trichogrammatidae were only identified to genus, and so are not included in our checklist. Relative to Canada, the smaller land masses and more northerly latitudes of Alaska and Greenland definitely contribute to lower species richness, but it is also probable that the numbers are lower than expected because of relatively poor sampling in Alaska and Greenland (as well as in the three Canadian territories, NT, NU and YT). In addition, one species of Chalcidoidea, Pteromalus elevatus (Walker, 1834) (Pteromalidae) has been recorded from the French Overseas Collectivity of Saint Pierre and Miquelon Islands (Gargominy et al. 2020). This record is derived from an online database and specimens have not been examined, but this species has been recorded previously from NB, NS and NL (Hoebeke and Wheeler 1996).

Table 2.

Checklist of species of Chalcidoidea and Mymarommatoidea of Canada, Alaska and Greenland. See Methods for acronyms used for the regions. Distributional acronyms in black regular font are previously published and supported by an examined specimen. Red, boldface records are new (unpublished) records supported by an examined specimen. All specimens supporting boldfaced records are deposited in the CNC except if a depository acronym is noted in the far right column. Blue, italicized records are previously published but not validated by an examined specimen. Literature references are only noted for italicized records. For species with multiple italicized records based on multiple references, the references are listed in order from left to right, corresponding with the distributional records depicted from left to right, unless otherwise noted. An asterisk (*) denotes a record from Newfoundland for which it is uncertain whether it was from the island of Newfoundland or mainland Labrador.

World families key – Gibson 1993; Nearctic families key – Grissell and Schauff 1997; Canadian families keys – Yoshimoto 1984; Nearctic generic keys – Gibson et al. 1997; Nearctic catalogue – Peck 1963, Burks 1979ai, Gordh 1979a, Grissell 1979; Greenland fauna – Böcher et al. 2015.
Nearctic generic key – Woolley 1997a; Nearctic catalogue – Gordh 1979b (as part of Encyrtidae)
Genus Aphelinus Dalman, 1820
Partial revision – Shirley et al. 2017
A. abdominalis (Dalman, 1820) CAN ON NS
A. annulipes (Walker, 1851) CAN BC
A. asychis Walker, 1839 CAN AB SK MB ON QC NB NS
A. chaonia Walker, 1839 CAN ON NB NS
A. daucicola Kurdjumov, 1913 CAN BC AB ON QC
A. gossypii Timberlake, 1924 CAN QC NB
A. howardii Dalla Torre, 1898 CAN BC AB
A. jucundus Gahan, 1924 CAN ON QC Gordh 1979b
A. mali (Haldeman, 1851) CAN BC AB SK MB ON QC NB NS
A. marlatti (Ashmead, 1888) CAN ON
A. niger Girault, 1913 CAN ON
A. perpallidus Gahan, 1924 CAN ON QC Gordh 1979b
A. prociphili Carver, 1980 CAN ON QC
A. sanborniae Gahan, 1924 CAN AB ON QC
A. semiflavus Howard, 1908 CAN MB ON NS Richardson and Westdal 1965; MacKauer and Bisdee 1965
A. varipes (Förster, 1840) CAN BC AB SK ON QC
Genus Aphytis Howard, 1900
World revision – Rosen and DeBach 1979
A. diaspidis (Howard, 1881) CAN ON QC Jarvis 1908; Burden and Hart 1994
A. mytilaspidis (Le Baron, 1870) CAN BC ON QC NB NS Burden and Hart 1994; Peck 1963
A. proclia (Walker, 1839) CAN NB
Genus Marietta Motschulsky, 1863
World key – Hayat 1986
M. mexicana (Howard, 1895) CAN QC Martel and Sharma 1968
M. picta (Andre, 1878) CAN Hayat 1986
M. pulchella (Howard, 1881) CAN BC SK ON QC Peck 1963; Burden and Hart 1994
Genus Coccobius Ratzeburg, 1852
C. varicornis (Howard, 1881) CAN SK ON QC Cumming 1953; Jarvis 1911
Genus Coccophagus Westwood, 1833
World revision – Compere 1931
C. brunneus Provancher, 1887 CAN QC Gahan and Rohwer 1917
C. cinguliventris Girault, 1909 CAN QC
C. fletcheri Howard, 1897 CAN ON Howard 1897
C. gossypariae Gahan, 1927 CAN BC AB ON NB Mader et al. 2020
C. lycimnia (Walker, 1839) CAN BC AB ON QC NS
C. perflavus Girault, 1916 CAN ON QC Beaulne 1949
C. quaestor Girault, 1917 CAN MB ON Girault 1917
C. scutellaris (Dalman, 1826) CAN BC
Genus Encarsia Förster, 1878
E. aurantii (Howard, 1894) CAN QC Girault 1912a
E. citrina (Craw, 1891) CAN Thompson 1953
E. formosa Gahan, 1924 CAN BC AB SK MB ON QC NB PE NS NF AB,SK,MB,QC, NB,PE,NS-Baird 1938; NF-Baird 1940
E. gennaroi Pedata & Giorgini, 2017 CAN ON
E. lounsburyi (Berlese & Paoli, 1916) CAN ON Baird 1947
E. perniciosi (Tower, 1913) CAN ON Caesar 1915
Genus Eretmocerus Haldeman, 1850
E. eremicus Rose & Zolnerowich, 1997 CAN ON
Nearctic catalogue – Gordh 1979b (as part of Encyrtidae)
Genus Ablerus Howard, 1894
A. clisiocampae (Ashmead, 1894) CAN ON Jarvis 1908
Subfamily classification, phylogeny – Cruaud et al. 2021; Nearctic generic key – Bouček and Halstead 1997; New World generic revision – Bouček 1992; Nearctic catalogue – Burks 1979a
Genus Brachymeria Westwood, 1829
Nearctic revision – Burks 1960
B. aeca Burks, 1960 CAN BC SK MB ON QC NS
B. compsilurae (Crawford, 1911) CAN BC MB ON
B. ovata (Say, 1824) CAN ON QC Peck 1951
B. parvula (Walker, 1834) CAN AK BC AB SK MB ON AK-UAM
B. podagrica (Fabricius, 1787) CAN AB
B. tegularis (Cresson, 1872) CAN AK BC AB SK MB ON QC AK-UAM
B. tibialis (Walker, 1834) CAN QC Madrid and Stewart 1980
B. truncatella Burks, 1967 CAN SK
Genus Acanthochalcis Cameron, 1884
Nearctic key – Halstead 1990c
A. nigricans Cameron, 1884 CAN ON
New World revision – Burks 1940, Delvare 1992;
Genus Chalcis Fabricius, 1787
Nearctic revision – Burks 1940; New World checklist – Delvare 1992
C. canadensis (Cresson, 1872) CAN MB ON QC NB Cresson 1872
C. divisa (Walker, 1862) CAN ON
C. flebilis (Cresson, 1872) CAN ON QC Cresson 1872
C. microgaster Say, 1824 CAN MB ON QC
C. neptis Burks, 1940 CAN SK MB
C. phoenicapoda Burks, 1940 CAN Peck 1951
Genus Conura Spinola, 1837
Nearctic revision (as Ceratosmicra, Spilochalcis) – Burks 1940
C. albifrons (Walsh, 1861) CAN AK YT NT BC AB SK MB ON QC NB PE NS AK-UAM
C. arcana (Cresson, 1872) CAN AB MB ON
C. debilis (Say, 1836) CAN BC SK MB ON
C. delumbis (Cresson, 1872) CAN MB ON QC Burks 1979a
C. igneoides (Kirby, 1883) CAN AB ON
C. juxta (Cresson, 1872) CAN ON QC
C. leptis (Burks, 1940) CAN BC
C. maria (Riley, 1870) CAN ON
C. melana (Burks, 1940) CAN ON
C. meteori (Burks, 1940) CAN NF Halstead 1986
C. side (Walker, 1843) CAN BC SK ON QC Burks 1940
C. torvina (Cresson, 1872) CAN BC AB SK ON
C. xanthostigma (Dalman, 1820) CAN ON Graham 1944
Genus Haltichella Spinola, 1811
Nearctic review – Halstead 1990a
H. xanticles (Walker, 1843) CAN SK ON QC Burks 1979a
Genus Hockeria Walker, 1834
Nearctic revision – Halstead 1990b
H. bicolor Halstead, 1990 CAN ON Halstead 1990b
H. eriensis (Wallace, 1942) CAN AB SK PMAE; RSKM
H. micra Halstead, 1990 CAN AB PMAE
H. unipunctatipennis (Girault, 1918) CAN ON QC
Genus Psilochalcis Kieffer, 1905
P. usta (Grissell & Schauff, 1981) CAN BC SK ON
Genus Phasgonophora Westwood, 1832
P. sulcata Westwood, 1832 CAN BC MB ON QC NB
Genus Trigonura Sichel, 1866
Nearctic key – Burks 1959
T. elegans (Provancher, 1887) CAN BC MB ON QC
T. pini Burks, 1959 CAN YT BC MB
T. tarsata (Dalla Torre, 1898) CAN SK MB ON QC NB Burks 1979a
T. ulmi Burks, 1959 CAN SK MB ON QC NB
Nearctic generic key – Noyes et al. 1997; Nearctic review – Noyes and Woolley 1994; world review (biocontrol) – Noyes and Hayat 1994; Nearctic catalogue – Gordh 1979b; Nearctic review of genera and keys – Trjapitzin and Gordh 1978a, 1978b, Gordh and Trjapitzin 1981
Genus Acerophagus Smith, 1880
Nearctic Revision and keys – Rosen (1969)
A. angelicus (Howard, 1898) CAN QC Peck 1963
A. malinus (Gahan, 1946) CAN ON Boyce 1948
Genus Adelencyrtus Ashmead, 1900
A. intersectus (Fonscolombe, 1832) CAN BC Gahan 1924
Genus Ageniaspis Dahlbom, 1857
A. bicoloripes (Girault, 1915) CAN ON NS
A. fuscicollis (Dalman, 1820) CAN BC ON
A. scutellatus (Miller, 1961) CAN ON NS
A. testaceipes (Ratzeburg, 1848) CAN ON Wang and Laing 1989
Genus Aphycoides Mercet, 1921
A. clavellatus Dalman, 1820 CAN Trjapitzin 1989
Genus Apsilophrys De Santis, 1964
A. vaga (Howard, 1885) CAN BC AB MB ON QC NB Peck 1963
Genus Blastothrix Mayr, 1876
Nearctic review – Sugonjaev 1983
B. brittanica Girault, 1917 CAN BC Sugonjaev 1983
B. longipennis Howard, 1881 CAN ON QC Noyes 2004
B. sericea (Dalman, 1820) CAN BC SK ON QC NB NS
Genus Bothriothorax Ratzeburg, 1844
B. nigripes Howard, 1895 CAN BC AB
B. noveboracensis Howard, 1895 CAN BC ON NB NS
Genus Casus Noyes & Woolley, 1994
C. parma Noyes & Woolley, 1994 CAN ON Noyes and Woolley 1994
Genus Cerchysius Westwood, 1832
C. pallipes (Provancher, 1887) CAN ON
Genus Cheiloneurus Westwood, 1833
World revision – Guerrieri and Viggiani 2005
C. alaskae Trjapitzin & Triapitsyn, 2008 AK Trjapitzin and Triapitsyn 2008
C. albicornis Howard, 1881 CAN MB ON
C. elegans (Dalman, 1820) CAN ON PE Gahan 1933
C. swezeyi Ashmead, 1903 CAN ON Guerrieri and Viggiani 2005
Genus Coelopencyrtus Timberlake, 1919
C. hylaeoleter Burks, 1958 CAN ON Gordh 1979b
Genus Copidosoma Ratzeburg, 1844
European revision – Guerrieri and Noyes 2005
C. albipes (Westwood, 1837) CAN BC AB SK MB ON QC NB
C. bakeri (Howard, 1898) CAN AB SK MB ON NB King and Atkinson 1928; Wood and Neilson 1957
C. bucculatricis (Howard, 1892) CAN ON QC NB PE
C. celaenae Howard, 1885 CAN YT NT BC AB SK MB ON QC NB NS
C. cervius (Walker, 1846) CAN BC AB SK ON QC NB NF
C. chalconotum (Dalman, 1820) CAN AK BC AB QC NS
C. cuproviride Springate & Noyes, 1990 CAN BC ON NS
C. deceptor Miller, 1958 CAN BC AB SK MB ON QC NB NS NF
C. filicorne (Dalman, 1820) CAN AB ON NB
C. floridanum (Ashmead, 1900) CAN AK YT BC AB SK MB ON QC NB NS
C. gelechiae Howard, 1885 CAN AK BC AB SK MB ON QC NB NS
C. howardi Zolnerowich & Zuparko, 2011 CAN BC NB Zolnerowich and Zuparko 2011
C. lymani Howard, 1907 CAN ON
C. melanocerum (Ashmead, 1900) CAN ON QC NB
C. pyralidis (Ashmead, 1888) CAN BC ON QC NB
C. truncatellum (Dalman, 1820) CAN BC AB SK ON QC NB NS LB NF Wood 1951
Genus Encyrtus Latreille, 1809
Holarctic review – Sugonjaev and Gordh 1982
E. aurantii (Geoffroy, 1785) CAN ON Jarvis 1911
E. fuscus (Howard, 1881) CAN BC SK ON QC NS
E. infidus (Rossi, 1790) CAN MB ON QC
Genus Epitetracnemus Girault, 1915
E. intersectus (Fonscolombe, 1832) CAN BC ON QC NS
Genus Gahaniella Timberlake, 1926
G. incerta (Howard, 1881) CAN ON QC
Genus Ginsiana Erdös & Novicky, 1955
G. richardsi (Barron, 1970) CAN ON
Genus Habrolepis Förster, 1856
H. dalmanni (Westwood, 1837) CAN ON
Genus Homalotylus Mayr, 1876
Nearctic revision – Timberlake 1920
H. hemipterinus (De Stefani, 1898) CAN ON QC
H. terminalis (Say, 1829) CAN BC
Genus Isodromus Howard, 1887
Nearctic revision – Timberlake 1920
I. atriventris Ashmead, 1900 CAN ON Ashmead 1900
I. iceryae Howard, 1887 CAN QC
I. niger Ashmead, 1900 CAN ON
I. puncticeps (Howard, 1885) CAN NS
I. vinulus (Dalman, 1820) CAN PE
Genus Ixodiphagus Howard, 1907
I. hookeri (Howard, 1908) CAN BC Peck 1963
I. texanus Howard, 1907 CAN NS
Genus Lamennaisia Girault, 1922
L. ambigua (Nees, 1834) CAN SK
Genus Merlen Noyes & Woolley, 1994
M. agricola Noyes & Woolley, 1994 CAN ON QC
Genus Metablastothrix Sugonjaev, 1964
M. claripennis (Compere, 1928) CAN BC SK MB ON
Genus Metaphycus Mercet, 1917
M. annulipes (Ashmead, 1882) CAN ON Fletcher 1902
M. ater (Mercet, 1925) GL Noyes 2015
M. groenlandicus Buhl, 1997 GL Buhl 1997
M. johnsoni (Howard, 1898) CAN ON QC Beaulne 1949
M. kincaidi Timberlake, 1929 CAN BC
M. maculipes (Howard, 1885) CAN ON
M. pulchellus (Howard, 1898) CAN ON Jarvis 1911
M. pulvinariae (Howard, 1881) CAN ON
M. rileyi (Timberlake, 1916) CAN ON Timberlake 1916
M. stanleyi Compere, 1940 CAN BC McLeod 1951
Genus Microterys Thomson, 1876
M. curio Trjapitzin, 1966 GL Noyes 2015
M. cyanocephalus (Dalman, 1820) CAN ON Jarvis 1911
M. fuscicornis (Howard, 1885) CAN SK MB ON
M. interpunctus (Dalman, 1820) GL
M. nietneri (Motschulsky, 1859) CAN ON Howard 1897
M. physokermis Compere, 1926 CAN AB SK MB ON QC NB PE
M. sylvius (Dalman, 1820) CAN Ashmead 1900
Genus Ooencyrtus Ashmead, 1900
O. bucculatrix (Howard, 1883) CAN ON Brodie 1909
O. clisiocampae (Ashmead, 1893) CAN BC AB ON
O. kuvanae (Howard, 1910) CAN ON
Genus Prionomitus Mayr, 1876
P. mitratus (Dalman, 1820) CAN BC ON
Genus Pseudencyrtus Ashmead, 1900
P. bolus (Walker, 1844) CAN ON Walker 1844
P. cecidomyiae (Howard, 1885) CAN NT MB ON QC Gordh 1979b
Genus Pseudococcobius Timberlake, 1916
P. obenbergeri (Novickij, 1926) GL Noyes 2015
Genus Pseudorhopus Timberlake, 1926
P. fuscus (Girault, 1912) CAN ON QC NB Peck 1951
Genus Psyllaephagus Ashmead, 1990
P. trioziphagus (Howard, 1885) CAN AB
Genus Stemmatosteres (Timberlake, 1918)
S. apterus Timberlake, 1918 GL Noyes 2015
S. kuchari Yoshimoto, 1972 CAN AB
Genus Syrphophagus Ashmead, 1900
S. quadrimaculatae (Ashmead, 1881) CAN NB NS
S. smithi Kamal, 1926 CAN BC
Genus Tachinaephagus Ashmead, 1904
T. zealandicus Ashmead, 1904 CAN AB
Genus Tetracyclos Kryger, 1942
T. boreios Kryger, 1942 CAN NU GL
Genus Thomsonisca Ghesquière, 1946
T. amathus (Walker, 1838) GL Buhl 1997
Genus Trechnites Thomson, 1876
T. insidiosus (Crawford, 1910) CAN BC ON NS
Genus Trichomasthus Thomson, 1876
T. marsus (Walker, 1837) GL Noyes 2015
Genus Zaomma Ashmead, 1900
Key – Gordh and Trjapitzin 1979
Z. lambinus (Walker, 1838) CAN ON QC NB PE NS Lord and MacPhee 1953
Genus Anagyrus Howard, 1896
A. antoninae Timberlake, 1920 CAN NT
A. aper Noyes & Menezes, 2000 CAN ON Noyes 2000
A. argyrus (Burks, 1952) CAN QC Burks 1952
A. pulcher (Ashmead, 1888) CAN AB
Genus Anusia Förster, 1856
A. nasicornis Förster, 1860 CAN ON
Genus Chrysoplatycerus Ashmead, 1889
C. splendens (Howard, 1888) CAN ON QC Baird 1940
Genus Clausenia Ishii, 1923
C. purpurea Ishii, 1923 CAN ON
Genus Ectromatopsis Compere, 1947
E. americana (Howard, 1898) CAN BC
Genus Epanusia Girault, 1913
E. xerophila (Brues, 1906) CAN ON
Genus Leptomastidea Mercet, 1926
L. abnormis (Girault, 1915) CAN BC AB SK ON QC NB NS NF AB,SK,NS-Baird 1939; BC,QC,NB-Baird 1941; NF-Peck 1963
Genus Leptomastix Förster, 1856
L. dactylopii Howard, 1885 CAN BC AB SK ON QC NB NS NF AB,SK,ON,NS-Baird 1939; BC,QC,NB-Baird 1941; NF-Peck 1963
Genus Mira Schellenberg, 1803
M. mucora Schellenberg, 1803 CAN NS
Genus Pseudoleptomastix Girault, 1915
P. squammulatus Girault, 1917 CAN AB Noyes 2000
Genus Rhopus Förster, 1856
R. sulphureus (Westwood, 1837) GL Noyes 2015
Genus Tetracnemoidea Howard, 1898
T. westwoodi (Cockerell, 1898) CAN QC Gordh 1979b
Genus Zaplatycerus Timberlake, 1925
Z. gela (Noyes & Woolley, 1994) CAN QC
Genus Zarhopalus Ashmead, 1900
Z. corvinus (Girault, 1915) CAN BC AB ON QC NB NS Baird 1941
Z. sheldoni Ashmead, 1900 CAN AB MB ON QC AB,MB-Noyes and Hayat 1994; QC-Baird 1946
World generic revision – Heraty 2002; Nearctic generic key – Heraty 1997; Nearctic catalogue – Burks 1979b
Nearctic revision – Heraty 1985
Genus Pseudochalcura Ashmead, 1904
New World revision – Heraty 1986
P. gibbosa (Provancher, 1881) CAN AK YT NT BC AB SK MB ON QC NB
Genus Pseudometagea Ashmead, 1899
P. bakeri Burks, 1961 CAN BC AB SK
P. barberi Heraty, 1985 CAN ON
P. montana (Ashmead, 1890) CAN AB SK ON QC NB PE NS Heraty 1985
P. nefrens Heraty, 1985 CAN AB ON
P. occipitalis Heraty, 1985 CAN BC AB Heraty 1985
P. schwarzii (Ashmead, 1892) CAN AB ON QC NB PE
Genus Orasema Cameron, 1884
Revision – Baker and Heraty 2020
O. coloradensis Wheeler, 1907 CAN BC AB MB ON Baker and Heraty 2020
Phylogenomics – Rasplus et al. 2020; Nearctic generic review – Schauff et al. 1997; Nearctic catalogue – Burks 1979c
Genus Achrysocharoides Girault, 1913
Nearctic revision – Yoshimoto 1977
A. albus Yoshimoto, 1977 CAN ON NS
A. arienascapus (Miller, 1962) CAN ON QC
A. bipunctatus (Girault, 1916) CAN SK ON QC
A. bisulcus Yoshimoto, 1977 CAN ON QC
A. cariocus (Miller, 1962) CAN ON QC
A. clypeatus (Miller, 1962) CAN ON QC
A. gahani (Miller, 1962) CAN ON QC
A. guizoti Girault, 1917 CAN ON
A. hirtiscapus (Miller, 1962) CAN ON
A. intricatus Yoshimoto, 1977 CAN ON QC
A. mali Kamijo, 1991 CAN NS
A. reticulatus Yoshimoto, 1977 CAN ON QC
A. tetrapunctatus Yoshimoto, 1977 CAN ON
A. titiani Girault, 1916 CAN ON NS
A. yoshimotoi Kamijo, 1991 CAN ON QC
A. zwoelferi (Delucchi, 1954) CAN BC
Genus Asecodes Förster, 1856
A. congruens (Nees, 1834) CAN BC ON
A. erxias (Walker, 1848) CAN BC
A. lucens (Nees, 1834) CAN NT SK ON QC NB NS
A. politum (Hansson, 1994) CAN ON
Genus Ceranisus Walker, 1842
Nearctic review – Triapitsyn and Morse 2005
C. americensis (Girault, 1917) CAN BC AB ON
C. loomansi Triapitsyn & Headrick, 1995 CAN BC AB SK MB ON NB PE
C. menes (Walker, 1939) CAN BC ON
C. planitianus Erdös, 1966 CAN NT Triapitsyn and Morse 2005
C. russelli (Crawford, 1911) CAN ON QC Triapitsyn and Morse 2005
Genus Chrysocharis Förster, 1856
New World/Nearctic revisions – Hansson 1987, 1995b, respectively; Palaearctic revision – Hansson 1985; Nearctic review Chrysocharis (Kratochviliana), Nearctic revision Chrysocharis s str – Yoshimoto 1973a, 1973b, respectively
C. acoris (Walker, 1839) CAN AK ON
C. acutigaster Hansson, 1985 CAN MB ON QC NB Hansson 1987
C. ainsliei Crawford, 1912 CAN AK YT BC AB SK ON QC NB NS Hansson 1987
C. aluta Yoshimoto, 1973 CAN NT ON QC
C. amasis (Walker, 1839) CAN NS Hansson 1987
C. amyite (Walker, 1839) CAN AK YT NT BC AB SK MB QC NF* Hansson 1987
C. assis (Walker, 1839) CAN YT AB SK ON QC NB NS NF* Hansson 1987
C. avia Hansson, 1985 CAN NT ON
C. beckeri Yoshimoto, 1973 CAN ON QC NB
C. cerodonthae Hansson, 1987 CAN AB ON QC
C. chromatomyiae Hansson, 1987 CAN BC AB ON QC NB
C. clarkae Yoshimoto, 1973 CAN AK YT NT BC AB MB ON QC NB NS
C. collaris Graham, 1963 CAN QC
C. compressicornis Ashmead, 1895 CAN BC ON QC NB
C. coptodiscae Yoshimoto, 1973 CAN BC SK MB ON QC NB NS NF* Hansson 1987
C. cornigera Hansson, 1995 CAN AB
C. crassiscapus (Thomson, 1878) CAN AK YT NT BC AB SK MB ON QC NB NS Hansson 1987
C. elongata (Thomson, 1878) CAN AK YT NT BC AB MB ON QC
C. entedonoides (Walker, 1972) CAN YT Hansson 1987
C. frigida Baur & Hansson, 1997 CAN QC
C. fulviscapus Hansson, 1987 CAN ON
C. gemma (Walker, 1839) CAN BC ON
C. giraulti Yoshimoto, 1973 CAN AK BC AB MB ON QC NB NS Hansson 1987; Yoshimoto 1973b
C. griffithsi Hansson, 1987 CAN YT BC AB ON Hansson 1987
C. ignota Hansson, 1987 CAN AB ON
C. illustris Graham, 1963 CAN BC
C. laomedon (Walker, 1839) CAN BC ON QC NS
C. laricinellae (Ratzeburg, 1848) CAN AK BC AB MB ON QC NB PE NS NF Yoshimoto 1973a
C. liriomyzae Delucchi, 1954 CAN ON PE Heimpel and Meloche 2001
C. longicoxa Hansson, 1987 CAN AK YT NT BC AB Hansson 1987
C. longigaster Hansson, 1987 CAN ON
C. mediana Förster, 1861 CAN AK MB ON QC NB
C. minuta (Hansson, 1986) CAN BC
C. nephereus (Walker, 1839) CAN AK BC AB SK MB ON QC NB NS
C. nitetis (Walker, 1839) CAN BC AB SK ON QC NB NS NF* AB,SK,NS-Yoshimoto 1973a; NB,NF-Hansson 1987
C. occidentalis (Girault, 1916) CAN MB ON QC NB NS NF Hansson 1987
C. oscinidis Ashmead, 1888 CAN AK YT NT BC AB SK MB ON QC NB NS
C. pallipes (Nees, 1834) CAN AK BC AB ON QC Hansson 1987
C. paradoxa Hansson, 1985 CAN ON
C. pentheus (Walker, 1839) CAN AK BC SK MB ON QC NB
C. phytomyzivora Hansson, 1987 CAN AK AB Hansson 1987
C. pilosa Delucchi, 1954 CAN BC
C. polita (Howard, 1897) CAN BC AB ON QC NS NF* Hansson 1987
C. polyzo (Walker, 1839) CAN AK YT NT BC AB SK MB ON QC NB NS LB NF Hansson 1987
C. prodice (Walker, 1839) CAN YT NT BC AB SK MB ON QC NB NF* Hansson 1987
C. pubicornis (Zetterstedt, 1838) CAN NT BC AB MB ON QC NS GL AB-Hansson 1987; BC,QC-Yoshimoto 1973b; GL-Baur 2005
C. robusta Yoshimoto, 1973 CAN BC AB
C. subcircularis Yoshimoto, 1973 CAN ON
C. submutica Graham, 1963 CAN BC AB ON QC NB NS
C. tristis Hansson, 1987 CAN BC AB ON
C. viridis (Nees, 1934) CAN AK YT NT BC AB MB ON QC NS NF* Hansson 1987
C. walleyi Yoshimoto, 1973 CAN BC ON QC NS
Genus Chrysonotomyia Ashmead, 1904
C. albipes (Girault & Dodd, 1913) CAN AB
C. maculata (Delucchi, 1962) CAN ON
Genus Closterocerus Westwood, 1833
Nearctic revision – Hansson 1994
C. agromyzae Narayanan, Subba Rao & Ramachandra, 1960 CAN BC AB MB ON PE
C. cincinnatus Girault, 1916 CAN ON
C. cinctipennis Ashmead, 1888 CAN ON QC NB NS
C. damastes Walker, 1847 CAN ON
C. nius Hansson, 1994 CAN QC
C. ruforum (Krausse, 1917) CAN ON QC NB Baird 1938
C. solidaginis (Yoshimoto, 1980) CAN ON
C. trifasciatus Westwood, 1833 CAN NT BC AB MB ON QC NB NS Digweed 1998
C. utahensis Crawford, 1912 CAN ON
C. vesiculis (Moser, 1965) CAN ON QC NS Hansson 1994
Genus Derostenus Westwood, 1833
D. freemani Yoshimoto, 1973 CAN BC AB SK ON QC NS
Genus Emersonella Girault, 1916
E. lemae Girault, 1916 CAN Thompson 1955
E. niveipes Girault, 1917 CAN ON
Genus Entedon Dalman, 1820
Nearctic revision – Schauff 1988
E. anthonomi Schauff, 1988 CAN ON NB
E. bigeloviae Ashmead, 1894 CAN BC
E. columbianus Ashmead, 1888 CAN NT AB SK MB ON QC
E. darleneae Schauff, 1988 CAN AK NT AB SK MB
E. ergias Walker, 1839 CAN ON QC NS Schauff 1988
E. genei Schauff, 1988 CAN NB Schauff 1988
E. methion Walker, 1839 CAN BC
E. nearcticus Özdikmen, 2011 CAN ON QC Schauff 1988
E. occidentalis Girault, 1916 CAN BC AB
E. pecki Schauff, 1988 CAN ON
E. tachypterelli Gahan, 1931 CAN ON Schauff 1988
E. teedoe Schauff, 1988 CAN ON
Genus Entedonomphale Girault, 1915
E. carbonaria (Erdös, 1954) CAN ON QC
Genus Holarcticesa Koçak & Kemal, 2010
Holarctic review – Hansson 1988 (as Grahamia Erdös)
H. clinius (Walker,1839) CAN BC ON NB
H. tatrica (Erdös, 1966) CAN NS Hansson 1988
Genus Horismenus Walker, 1843
H. fraternus (Fitch, 1856) CAN ON QC
H. latrodecti Burks, 1971 CAN QC
H. lixivorus Crawford, 1907 CAN ON
H. puttleri (Grissell, 1981) CAN ON NB Sears and Boiteau 1989
Genus Ionympha Graham, 1959
New World revision – Hansson 1989; status of genus – Hansson 1996c
I. carne (Walker, 1839) CAN SK ON Hansson 1989
I. ochus (Walker, 1839) CAN BC QC NS
Genus Mestocharis Förster, 1878
Holarctic revision – Hansson 1988
M. bimacularis (Dalman, 1820) CAN BC AB MB ON QC NS NF* Hansson 1988
M. tropicalis Yoshimoto, 1976 CAN ON
Genus Neochrysocharis Kurdjumov, 1912
Nearctic revision – Hansson 1995a
N. agromyzae (Crawford,1913) CAN BC AB MB ON QC PE Hansson 1995a
N. aratus (Walker, 1838) CAN AB ON
N. arizonensis (Crawford, 1913) CAN BC
N. clavatus (Hansson, 1995) CAN AB
N. cyaneoviridis Hansson,1995 CAN ON
N. diastatae (Howard, 1881) CAN AK BC AB SK MB ON QC NB PE NS GL Hansson 1995a; Baur 2005
N. elongatus Hansson, 1995 CAN BC ON
N. formosus (Westwood, 1833) CAN BC AB SK ON QC NB NS
N. marginalis Hansson, 1995 CAN AB SK ON PE
N. pictipes (Crawford, 1912) CAN AB ON Hansson 1995a
Genus Omphale Haliday, 1833
New World revision – Hansson 1996a
O. acamas (Walker, 1839) CAN BC AB ON
O. acuminaticornis (Girault, 1916) CAN ON
O. acuminativentris (Girault, 1917) CAN ON QC NB NS Hansson 1996a
O. aureopurpurea Hansson, 1996 CAN NT MB
O. bicincta Ashmead, 1888 CAN ON QC
O. brevicornis Hansson, 1996 CAN ON
O. clypealba Hansson, 1996 CAN ON
O. deplanata Hansson, 1996 CAN QC
O. divina (Girault, 1916) CAN ON
O. elevata Hansson, 1996 CAN MB
O. erginnus (Walker, 1839) CAN AB SK MB ON QC NB NS
O. flavicephala Hansson, 1996 CAN ON
O. flavifacies Hansson, 1996 CAN ON
O. gracilicornis (Hansson, 1987) CAN BC AB MB ON QC NB
O. huggerti (Hansson, 1988) CAN ON
O. longiseta Hansson, 1996 CAN QC
O. marginalis Hansson, 1996 CAN MB ON QC
O. marylandensis (Girault, 1916) CAN AK MB ON QC NB NS Hansson 1996a
O. obscurinotata (Girault, 1916) CAN MB ON QC NS
O. ocelliparva Hansson, 1996 CAN ON QC
O. oculiparva Hansson, 1996 CAN BC MB ON QC
O. pedicellata Hansson, 1996 CAN ON QC
O. pilosa Hansson, 1996 CAN ON
O. purpurea Hansson, 1996 CAN ON QC NB
O. salicis (Haliday, 1833) CAN AB SK ON QC NB Hansson 1996a
O. scutellata (Girault, 1916) CAN MB ON QC
O. semiglobosa Hansson, 1996 CAN ON Hansson 1996a
O. straminea Hansson, 1996 CAN MB ON
O. theana (Walker, 1839) CAN BC AB MB ON QC NB PE NS
O. triclava Hansson, 1996 CAN ON QC Hansson 1996a
O. varia (Hansson, 1987) CAN ON QC
O. versicolor (Nees, 1834) CAN NT BC AB ON
O. vinacea Hansson, 1996 CAN QC
O. vulgaris Hansson, 1996 CAN MB ON QC NB NS
Genus Paracrias Ashmead, 1904
Review – Gumovsky 2001
P. arizonensis (Ashmead, 1888) CAN AB
P. canadensis Gumovsky, 2001 CAN MB
P. huberi Gumovsky, 2001 CAN NB
P. laticalcar Gumovsky, 2001 CAN AB SK Gumovsky 2001
P. mirus (Girault, 1917) CAN QC
Genus Pediobius Walker, 1846
Nearctic revision – Peck 1985
P. adelphae Peck, 1985 CAN ON QC
P. alaspharus (Walker, 1839) CAN ON NS GL Baur 2005
P. albipes (Provancher, 1887) CAN BC AB SK MB ON QC NB NS NF
P. alcaeus (Walker, 1839) CAN AK BC AB ON QC NS
P. aphidiphagus (Ashmead,1887) CAN BC ON QC Peck 1985
P. brachycerus (Thomson, 1878) CAN BC AB MB ON QC
P. bucculatricis (Gahan, 1927) CAN AB MB ON QC NB NS Peck 1985
P. crassicornis (Thomson, 1878) CAN BC AB MB ON QC NB
P. epigonus (Walker, 1839) CAN AK YT NT BC AB SK MB ON QC NB PE NS LB Peck 1985
P. eubius (Walker, 1839) CAN AK YT NT BC AB SK MB ON QC NB NS LB NF
P. facialis (Giraud, 1863) CAN BC AB SK MB ON QC NB PE NS Peck 1985
P. foliorum (Geoffroy, 1785) CAN AK ON QC
P. liocephalatus Peck, 1985 CAN SK ON QC NS
P. lonchaeae Burks, 1966 CAN ON QC NB NS Peck 1985
P. lysis (Walker, 1839) CAN QC
P. magniclavatus Peck, 1985 CAN ON QC NF
P. metallicus (Nees, 1834) CAN BC ON QC NB NS NF
P. nigritarsis (Thomson, 1878) CAN BC AB SK ON QC NS Baird 1938; Burks 1979c
P. ocellatus Peck, 1985 CAN ON
P. phyllotretae (Riley, 1884) CAN AB ON QC
P. planiventris (Thomson, 1878) CAN ON
P. pseudotsugatae Peck, 1985 CAN BC
P. pyrgo (Walker, 1839) CAN ON Arthur 1962
P. termerus (Walker, 1839) CAN AK BC LB
P. williamsoni (Girault, 1911) CAN AB ON
Genus Perditorulus Hansson, 1996
P. penicillatus Hansson, 1996 CAN ON Hansson 1996b
Genus Astichus Förster, 1856
A. intermedius Hedqvist, 1969 CAN ON
A. polyporicola Hedqvist, 1969 CAN ON QC NB NF
A. pulchrilineatus Gahan, 1927 CAN ON
Genus Euderus Haliday, 1844
Nearctic revision – Yoshimoto 1971
E. acrobasis (Crawford, 1915) CAN AB ON QC NS
E. alaskensis Yoshimoto, 1971 AK
E. albitarsis (Zetterstedt, 1838) CAN AB SK MB ON QC NB PE NS
E. argyresthiae (Crawford, 1915) CAN BC ON QC NB Eidt and Sippell 1961
E. canadensis Yoshimoto, 1971 CAN NT MB ON QC Yoshimoto 1971
E. chillcotti Yoshimoto, 1971 CAN SK ON
E. cushmani (Crawford, 1915) CAN NT BC AB SK MB ON QC NB NS
E. fuscedinellae Yoshimoto, 1971 CAN ON NB
E. glaucus Yoshimoto, 1971 CAN ON QC
E. lividus (Ashmead, 1886) CAN ON
E. masoni Yoshimoto, 1971 CAN ON
E. pecki Yoshimoto, 1971 CAN MB QC
E. purpureus Yoshimoto, 1971 CAN ON
E. rubriscapus (Girault, 1916) CAN ON QC NS
E. rugosus (Crawford, 1915) CAN YT MB ON QC NB NS
E. saperdae Miller, 1965 CAN SK MB ON
E. solidaginis Yoshimoto, 1971 CAN ON QC
E. subopacus (Gahan, 1927) CAN AB SK MB ON QC NS
E. verticillatus (Ashmead, 1888) CAN ON
Nearctic key to genera – Miller 1970
Genus Burkseus Perry, 2019
Revision and key to genera – Perry and Heraty 2019
B. flavoviridis (Crawford, 1913) CAN BC
B. robustus Perry, 2019 CAN BC AB ON
B. vittatus (Walker, 1838) CAN AK YT BC AB ON QC NB PE NS NF
Genus Cirrospilus Westwood, 1832
C. argei (Crawford, 1911) CAN SK ON
C. cinctithorax (Girault, 1916) CAN BC AB ON QC NB NS
C. coptodiscae (Girault, 1916) CAN BC
C. flavicinctus Riley, 1883 CAN ON QC
C. inimicus Gahan, 1934 CAN ON
C. ocellatus Girault, 1917 CAN MB QC
C. ovisugosus Crosby & Matheson, 1915 CAN Thompson 1955
C. pictus (Nees,1834) CAN ON QC Peck 1963
Genus Colpoclypeus Lucchese, 1941
C. florus (Walker, 1839) CAN BC ON QC
Genus Dahlbominus Hincks, 1945
D. fuscipennis (Zetterstedt, 1838) CAN BC ON QC NB PE NS NF* BC-Baird 1942; NB-Hawboldt 1939; PE-Baird 1947; NS,NF-Baird 1946
Genus Diaulinopsis Crawford, 1912
D. callichroma Crawford, 1912 CAN SK ON NB
Genus Dicladocerus Westwood, 1832
Nearctic revision – Yoshimoto 1976
D. alaskensis Yoshimoto, 1976 AK
D. betulae Yoshimoto, 1976 CAN ON NF
D. epinotiae Yoshimoto, 1976 CAN ON NF Yoshimoto 1976
D. exoteliae Yoshimoto, 1976 CAN ON
D. nearcticus Yoshimoto, 1976 CAN BC AB SK ON QC NB
D. occidentalis Yoshimoto, 1976 CAN BC
D. pacificus Yoshimoto, 1976 CAN BC
D. terraenovae Yoshimoto, 1976 CAN NF
D. vulgaris Yoshimoto, 1976 CAN ON QC NB
D. westwoodii Westwood, 1832 CAN BC ON Andrews and Geistlinger 1969
Genus Diglyphus Walker, 1844
D. begini (Ashmead, 1904) CAN YT BC AB SK MB ON QC NB NS
D. intermedius (Girault, 1916) CAN BC AB MB ON QC NS
D. isaea (Walker, 1838) CAN AB ON GL Fry 1989; Baur 2005
D. pulchripes (Crawford, 1912) CAN BC AB SK MB ON QC
D. websteri (Crawford, 1912) CAN AK NT SK ON QC NS
Genus Dimmockia Ashmead, 1904
World review – Ikeda and Huber 1996
D. incongrua (Ashmead, 1898) CAN ON
D. pallipes Muesebeck, 1927 CAN MB ON QC NB
Genus Elachertus Spinola, 1811
Nearctic revision – Schauff 1985a
E. atus Schauff, 1985 CAN MB ON QC NB NF
E. cacoeciae Howard, 1885 CAN AK BC AB SK MB ON QC NB NS NF
E. cidariae Ashmead, 1898 CAN AK NT BC ON QC NB NS
E. fenestratus Nees, 1834 CAN YT NT NU BC AB SK MB ON QC NB NS GL Baur 2005
E. loh Schauff, 1985 CAN NS
Genus Elasmus Westwood, 1833
Nearctic review – Coote 1997; Nearctic key – Burks 1965
E. albicoxa Howard, 1885 CAN ON QC
E. apanteli Gahan, 1913 CAN SK ON QC Burks 1979c
E. aspidiscae Girault, 1917 CAN Thompson 1955
E. atratus Howard, 1897 CAN BC QC NB
E. marylandicus Girault, 1915 CAN ON
E. mordax Girault, 1917 CAN Thompson 1955
Genus Eulophus Geoffroy, 1762
E. anomocerus (Crawford, 1912) CAN SK MB ON QC NB
E. basalis Say, 1836 CAN ON
E. brevicapitatus Cook & Davis, 1891 CAN SK MB ON QC
E. koebelei (Crawford, 1912) CAN SK
E. larvarum (Linnaeus, 1758) CAN NS
E. nebulosus (Provancher, 1887) CAN BC ON QC NB PE NF
E. orgyiae (Fitch, 1856) CAN BC AB SK MB ON QC NB PE NS NF
E. ramosus Provancher, 1881 CAN QC Provancher 1881
E. smerinthi (Ashmead, 1898) CAN ON QC
Genus Euplectrus Westwood, 1832
European revision – Hansson and Schmidt 2018; China species – Zhu and Huang 2003
E. bicolor (Swederus, 1795) CAN MB ON QC Zhu and Huang 2002
E. frontalis Howard, 1885 CAN ON QC Chittenden 1901; Fyles 1897
E. liparidis Ferrière, 1941 CAN QC Zhu and Huang 2002
E. mellipes Provancher, 1887 CAN AK ON QC NS Burks 1979c; Peck 1963
Genus Grotiusomyia Girault, 1917
G. flavicornis Girault, 1917 CAN SK
Genus Hemiptarsenus Westwood, 1833
H. collaris (Ashmead, 1904) CAN QC Burks 1979c
H. longifasciatus (Girault, 1917) CAN ON QC
H. unguicellus (Zetterstedt, 1838) CAN ON QC NB
Genus Hyssopus Girault, 1916
Nearctic revision – Schauff 1985b
H. benefactor (Crawford, 1912) CAN BC AB ON QC Burks 1979c
H. johannseni (Crawford, 1912) CAN YT BC AB SK MB ON QC NB
H. novus Girault, 1917 CAN BC
H. rhyacioniae Gahan, 1927 CAN ON
H. thymus Girault, 1916 CAN BC AB SK MB ON QC PE
Genus Miotropis Thomson, 1878
M. mellea (Ashmead, 1904) CAN ON
Genus Necremnus Thomson, 1878
N. californicus (Girault, 1917) CAN AB ON
N. duplicatus Gahan, 1941 CAN BC AB SK ON QC
N. tidius (Walker, 1839) CAN BC ON
Genus Paraolinx Ashmead, 1894
P. canadensis Miller, 1964 CAN QC
Genus Platyplectrus Ferrière, 1941
P. americanus (Girault, 1917) CAN ON
Genus Pnigalio Schrank, 1802
Nearctic review – Yoshimoto 1983; Nearctic revision – Miller 1970
P. boharti Yoshimoto, 1983 CAN BC
P. elongatus Yoshimoto, 1983 CAN ON QC
P. glaber Yoshimoto, 1983 CAN MB ON
P. kukakensis (Ashmead, 1902) CAN AK NU BC AB NS Yoshimoto 1983
P. levis Yoshimoto, 1983 CAN BC
P. longulus (Zetterstedt, 1838) CAN AK NT BC AB SK MB ON NB Yoshimoto 1983
P. maculipes (Crawford, 1913) CAN AK YT NT BC AB SK MB ON QC NB NS NF Burks 1979c
P. minio (Walker, 1847) CAN AK NT BC AB SK MB ON QC NB NS NF
P. nemati (Westwood, 1838) CAN ON
P. neolongulus Yoshimoto, 1983 CAN AK YT BC MB ON QC NS
P. pallipes (Provancher, 1887) CAN AK NT BC SK MB ON QC NB NS Yoshimoto 1983
P. pectinicornis (Linnaeus, 1758) CAN ON QC
P. uroplatae (Howard, 1885) CAN AK NT AB MB ON QC NB NS NF Yoshimoto 1983
Genus Sympiesis Förster, 1856
Holarctic Review of Sympiesis acalle, gordiusMaier and Hansson 2006; Nearctic revision – Miller 1970
S. acalle (Walker, 1848) CAN AK BC AB ON QC NB NS Burks 1979c
S. ancylae Girault, 1917 CAN AB ON QC NB NS Burks 1979c
S. argenticoxae Girault, 1917 CAN MB ON QC Burks 1979c
S. dolichogaster Ashmead, 1888 CAN BC AB SK ON QC NB Burks 1979c
S. enargiae Miller, 1970 CAN NT BC ON QC NB Miller 1970
S. gordius (Walker, 1848) CAN BC MB ON QC NB NS
S. marilandia Girault, 1917 CAN ON QC NS Burks 1979c
S. sericeicornis (Nees, 1834) CAN YT NT BC AB SK MB ON QC NB NS
S. stigmata Girault, 1917 CAN BC AB SK