Latest Articles from Journal of Hymenoptera Research Latest 11 Articles from Journal of Hymenoptera Research https://jhr.pensoft.net/ Fri, 29 Mar 2024 14:56:58 +0200 Pensoft FeedCreator https://jhr.pensoft.net/i/logo.jpg Latest Articles from Journal of Hymenoptera Research https://jhr.pensoft.net/ On the specific epithet “vaccinii” of Ashmead, 1887 and Burks, 1979 (Hymenoptera, Cynipidae) https://jhr.pensoft.net/article/110687/ Journal of Hymenoptera Research 96: 955-965

DOI: 10.3897/jhr.96.110687

Authors: Juli Pujade-Villar, Y. Miles Zhang, Matthew L. Buffington, Denis J. Brothers, Irene Lobato-Vila, Victor Cuesta-Porta

Abstract: Ashmead (1887) provided descriptions of two species of Cynipidae with “vaccinii” as the specific epithet: Solenozopheria vaccinii Ashmead, 1887 and Acraspis vaccinii Ashmead, 1887. There are numerous nomenclatural issues that have arisen from these descriptions. To resolve them, we have examined all relevant primary types and provide images of these specimens, as well as their labels. We recognize as valid the two “vaccinii” species, Loxaulus vaccinii (Ashmead, 1887) and Zopheroteras vaccinii (Ashmead, 1887), and list their synonyms. We also include the following new nomenclatural and taxonomic acts: Acraspis vaccinii Ashmead, 1887: lectotype by present designation; Callirhytis vaccinii Burks, 1979: species incertae sedis; Andricus impositus Beutenmüller, 1918: revalidated status; Andricus verifactor Kinsey, 1922: new status.

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Research Article Thu, 9 Nov 2023 18:32:31 +0200
Taxonomy of the genus Peucobius Townes (Hymenoptera, Ichneumonidae, Sisyrostolinae) https://jhr.pensoft.net/article/98222/ Journal of Hymenoptera Research 95: 245-260

DOI: 10.3897/jhr.95.98222

Authors: Andrey I. Khalaim, Enrique Ruíz-Cancino, Juana Maria Coronado-Blanco

Abstract: The genus Peucobius Townes previously comprised two species occurring in the Nearctic region: P. fulvus Townes and P. piceus Townes. In the current study we revise this genus, transfer it to the subfamily Sisyrostolinae (comb. nov.), and describe two new species – P. bennetti Khalaim & Ruíz-Cancino, sp. nov. from Central Mexico and P. shimizui Khalaim, sp. nov. from Japan. The genus Lygurus Kasparyan occurring in Russian Far East and Taiwan is morphologically similar to Peucobius; characters for distinguishing these two genera are provided for the first time with the use of colour photographs. Identification keys to four world species of Peucobius, and to species of Lygurus and Peucobius occurring in the East Palaearctic region, are provided. We suggest that species of Peucobius are associated with xyelid sawflies (Xyelidae) whose larvae feed in staminate pine cones.

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Research Article Fri, 24 Feb 2023 18:24:30 +0200
Host-specific demography of Utetes anastrephae (Hymenoptera, Braconidae), a native parasitoid of Anastrepha spp. fruit flies (Diptera, Tephritidae) https://jhr.pensoft.net/article/86860/ Journal of Hymenoptera Research 93: 53-69

DOI: 10.3897/jhr.93.86860

Authors: María Dina Estrada-Marroquín, Jorge Cancino, Daniel Sánchez, Pablo Montoya, Pablo Liedo

Abstract: The braconid Utetes anastrephae (Viereck, 1913) (Hymenoptera: Braconidae) is a larva-pupal parasitoid of fruit flies of the genus Anastrepha Schiner, commonly associated with Anastrepha obliqua (Macquart, 1835) (Diptera: Tephritidae), the most important pest of mango (Mangifera indica L., 1753) in Mexico. This parasitoid was established in a laboratory colony using larvae of Anastrepha ludens (Loew, 1873) as host. Here we describe a demographic study to compare the reproductive and population parameters of this parasitoid reared on A. obliqua and A. ludens under laboratory conditions. Two U. anastrephae cohorts of 30 individual pairs each were set up, one was reared on A. obliqua larvae and the other one on A. ludens. Every day, 30 third instar larvae of each host species were exposed to an adult pair through the lifespan of the female. Daily mortality and fecundity were recorded. Life tables were constructed and sex ratios, parasitism rates, survival, reproductive and population parameters were estimated. Higher survival of U. anastrephae females was observed in females from A. obliqua (mean live expectancy of 22.4 days), but higher fecundity and parasitism occurred in females from A. ludens (net fecundity of 62.61 daughters/ female and 16.72% parasitism rate). The intrinsic rate of increase (r = 0.128 and r = 0.134 for A. obliqua and A. ludens respectively), mean generation time (27.88 and 28.30 days) and population doubling time (5.42 and 5.16 days) were similar in both cohorts, as well as the sex ratio (73 and 69% of females). These results suggest that A. ludens as host increase the production rates; however, any one of these two species could be used as host for mass rearing purposes.

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Research Article Mon, 31 Oct 2022 06:02:22 +0200
The first Pacific insular orchid bee (Hymenoptera, Apidae): A new species of Eufriesea from the Islas Marías https://jhr.pensoft.net/article/87197/ Journal of Hymenoptera Research 92: 273-284

DOI: 10.3897/jhr.92.87197

Authors: Ricardo Ayala, Victor H. Gonzalez, Michael S. Engel

Abstract: A new species of the orchid bee genus Eufriesea Cockerell (Apidae: Apinae: Euglossini) is described and figured from the Islas Marías of Nayarit State, México in the Pacific. Eufriesea insularis sp. nov., is a member of the coerulescens species group and is restricted to Islas Marias. The species is readily recognized by its dark blue integument with purple iridescence, black pubescence, dark wings, and clypeus green with purple hues and a prominent elevated ridge along the midline. The new species is known only from the female.

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Research Article Wed, 31 Aug 2022 17:01:03 +0300
Host acceptance by three native braconid parasitoid species attacking larvae of the Mexican fruit fly, Anastrepha ludens (Diptera, Tephritidae) https://jhr.pensoft.net/article/23724/ Journal of Hymenoptera Research 63: 33-49

DOI: 10.3897/jhr.63.23724

Authors: Amanda Ayala, Gabriela Pérez-Lachaud, Jorge Toledo, Pablo Liedo, Pablo Montoya

Abstract: We studied the oviposition and host acceptance behavior of three braconid parasitoid species native to Mexico, Doryctobracon crawfordi (Viereck), Opius hirtus (Fischer), and Utetes anastrephae (Viereck), with potential to be considered as biocontrol agents against tephritid fruit fly pests in the Neotropics. Third instar larvae of Anastrepha ludens (Loew), with and without previous parasitization by conspecifics, were simultaneously offered to females of each species, and the individual behavior was video recorded to construct oviposition flow diagrams. The patterns of foraging and host acceptance were similar in the studied species; all rejected mostly parasitized hosts suggesting that this strategy is common in the guild of larval parasitoids attacking Anastrepha spp. The complete searching and host acceptance process took 2.2 ± 0.1 min (mean ± SE) in D. crawfordi, 1.7 ± 0.1 s in U. anastrephae and 1.5 ± 0.1 s in O. hirtus. Notably, because of toxins injected by parasitoid females during oviposition, the parasitized hosts experienced a transient paralysis of variable duration. Hosts attacked by U. anastrephae remained immobile for the shortest time (12.5 ± 1 min) (mean±SE), followed by D. crawfordi (20.5 ± 3.4 min) and O. hirtus (24.1 ± 2 min). Our data revealed a notable discrimination ability in all three species, and that behavioral differences lay mainly in the time of parasitization and in the duration of paralysis experienced by attacked hosts. This suggest that the three species could be valuable as biocontrol agents, but additional studies are necessary to better understand the advantages and limitations of each one as natural enemies of fruit fly pests.

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Research Article Mon, 30 Apr 2018 16:35:46 +0300
First record of the genera Diaparsis Förster and Phradis Förster (Hymenoptera, Ichneumonidae, Tersilochinae) from Mexico https://jhr.pensoft.net/article/24491/ Journal of Hymenoptera Research 63: 61-72

DOI: 10.3897/jhr.63.24491

Authors: Andrey I. Khalaim, Enrique Ruíz-Cancino

Abstract: In this paper, one species of Diaparsis Förster (D. splendens Horstmann) is recorded and two species of Phradis Förster (P. bufalosus sp. n. and P. nanacamilpus sp. n.) are described from Mexico. Both genera are extremely rare in the Mexican fauna, being represented by single specimens from a large amount of ichneumonids examined in many Mexican and USA collections. A partial identification key to North American species of Phradis is given. Colour photographs and morphological remarks on D. splendens are provided.

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Research Article Mon, 30 Apr 2018 14:46:54 +0300
Ichneumonidae (Hymenoptera) associated with xyelid sawflies (Hymenoptera, Xyelidae) in Mexico https://jhr.pensoft.net/article/12919/ Journal of Hymenoptera Research 58: 17-27

DOI: 10.3897/jhr.58.12919

Authors: Andrey I. Khalaim, Enrique Ruíz-Cancino

Abstract: Two species of ichneumon wasps (Ichneumonidae), Gelanes horstmanni Khalaim, sp. n. (Tersilochinae) and Idiogramma elbakyanae Khalaim sp. n. (Tryphoninae), are described from the pine forest at 2800–2900 m from the State of Tlaxcala in Central Mexico; a third species, I. comstockii (Ashmead), is found to occur in the State of Nuevo León in Northeast Mexico. The genera Gelanes Horstmann and Idiogramma Förster are associated with xyelid sawflies (Xyelidae), and both, as well as the tryphonine tribe Idiogrammatini, are recorded from Mexico for the first time. An identification key to the two Idiogramma species occurring in Mexico is provided.

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Research Article Thu, 31 Aug 2017 13:56:39 +0300
Labilochus brevipalpis, a new genus and species with extremely long mouthparts (Hymenoptera, Ichneumonidae, Tersilochinae) from Mexico https://jhr.pensoft.net/article/11452/ Journal of Hymenoptera Research 55: 121-127

DOI: 10.3897/jhr.55.11452

Authors: Andrey I. Khalaim, Enrique Ruíz-Cancino, Juana María Coronado-Blanco

Abstract: Labilochus brevipalpis gen. & sp. n. from northeast Mexico is described and illustrated. The new genus is distinguished from all other Tersilochinae taxa by its extremely long glossa and galeae in combination with short maxillary and labial palps, and both palps with reduced number of palpomeres. The genus also possesses a remarkable head, which is almost straight behind the eyes in dorsal view and with the occipital carina lacking laterally.

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Research Article Fri, 28 Apr 2017 14:22:33 +0300
Revision of the neotropical genus Sendaphne Nixon (Hymenoptera, Braconidae, Microgastrinae) https://jhr.pensoft.net/article/4387/ Journal of Hymenoptera Research 41: 1-29

DOI: 10.3897/JHR.41.8586

Authors: Jose L. Fernandez-Triana, James B. Whitfield, M. Alex Smith, Winnie Hallwachs, Daniel H. Janzen

Abstract: The Neotropical genus of parasitoid wasps Sendaphne (Hymenoptera, Braconidae, Microgastrinae) is revised and the following six new species are described, all authored by Fernández-Triana and Whitfield: anitae, bennetti, broadi, dianariaspennae, penteadodiasae, and rogerblancoi. The greatest species richness is found in northern South America, but the genus extends north to 23° N in Mexico. Most species have been collected in rainforest below altitudes of 900 m, with only a few species found in cloud forests up to 1900 m. Nothing is known of the host caterpillars for these parasitoid wasps.

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Research Article Mon, 22 Dec 2014 00:00:00 +0200
The Encarsia noyesi species-group (Hymenoptera, Chalcidoidea, Aphelinidae) in the Neotropical region, with a key and description of the male of E. andrewi from Mexico https://jhr.pensoft.net/article/4107/ Journal of Hymenoptera Research 39: 33-46

DOI: 10.3897/JHR.39.7307

Authors: Svetlana Nikolaevna Myartseva, Gregory Allyn Evans, Juana María Coronado-Blanco

Abstract: The Encarsia noyesi group species known to occur in the Neotropical region are reviewed. Taxonomic, host and distribution information for these eight species, and a key to females and males are provided. The male of E. andrewi (Myartseva and Coronado-Blanco) is described from Mexico. Aleurodicus dugesii Cockerell is reported as a new host record for E. andrewi.

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Research Article Fri, 26 Sep 2014 00:00:00 +0300
A review of New World Eurytenes s. str. (Hymenoptera, Braconidae, Opiinae) https://jhr.pensoft.net/article/1561/ Journal of Hymenoptera Research 20: 23-46

DOI: 10.3897/jhr.29.877

Authors: Andrea Walker, Robert Wharton

Abstract: The New World species of Eurytenes Foerster sensu stricto (Hymenoptera: Braconidae, Opiinae) are revised, and a key to these species is presented. Four new species are described: Eurytenes (Eurytenes) dichromus sp. n. from Texas, E. (E.) microsomus sp. n. from Texas, E. (E.) pachycephalus sp. n. from Mexico, and E. (E.) ormenus sp. n. from Mexico. Eurytenes abnormis (Wesmael) is redescribed for comparison, and its host records are reviewed.

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Research Article Tue, 8 Feb 2011 00:00:00 +0200