Latest Articles from Journal of Hymenoptera Research Latest 6 Articles from Journal of Hymenoptera Research https://jhr.pensoft.net/ Fri, 29 Mar 2024 11:17:56 +0200 Pensoft FeedCreator https://jhr.pensoft.net/i/logo.jpg Latest Articles from Journal of Hymenoptera Research https://jhr.pensoft.net/ Checklist of the sawflies (Hymenoptera) of Canada, Alaska and Greenland https://jhr.pensoft.net/article/60057/ Journal of Hymenoptera Research 82: 21-67

DOI: 10.3897/jhr.82.60057

Authors: Henri Goulet, Andrew M. R. Bennett

Abstract: A distributional checklist of the sawflies (Hymenoptera) of Canada, Alaska (USA) and Greenland (Denmark) is presented. In total, 758 extant, described species, classified in 113 genera in 12 families are recorded. Of these, 729 (in 113 genera in 12 families) are reported from Canada, 183 (in 48 genera in 8 families) from Alaska, and 7 (in 1 genus) from Greenland. The list includes 69 new species records and 5 new generic records for Canada and 29 new species records and 7 new generic records for Alaska. The family Xiphydriidae is also newly recorded from Alaska. No new records are reported from Greenland. Eighty-four new combinations are proposed for species of Nematinae (Tenthredinidae). Distributions are listed for all species, for those in Canada by province or territory, except the province of Newfoundland and Labrador is divided into the island of Newfoundland and the region of Labrador. This inventory is compared with previous Nearctic and Palaearctic surveys, checklists and catalogues.

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Checklist Thu, 29 Apr 2021 21:00:02 +0300
Checklists of the Hymenoptera of Canada, Alaska and Greenland – Introduction https://jhr.pensoft.net/article/60054/ Journal of Hymenoptera Research 82: 1-19

DOI: 10.3897/jhr.82.60054

Authors: Andrew M. R. Bennett

Abstract: The distribution of described, extant species of the insect order Hymenoptera recorded from northern North America will be published in a series of ten checklists. In total, 9250 species in 27 superfamilies and 84 families are recorded from Canada, the state of Alaska (USA) and Greenland (Denmark). Within northern North America, 8933 species are recorded in Canada (96.6% of the total species), Alaska has 1513 (16.4%) and Greenland has 205 (2.2%). Within Canada, Ontario is the province with the most species recorded (5322, 57.5% of all species in northern North America), followed by Quebec (4207, 45.5%) and British Columbia (4063, 43.9%). At the family level, Ontario has 82 of the 84 recorded families, Quebec has 76 and British Columbia has 71. The most species-rich superfamilies in northern North America are Ichneumonoidea (4438 species, 48.0% of the total); Apoidea (1438, 15.5%) and Chalcidoidea (1246, 13.5%). The largest families are Ichneumonidae (3201 species, 34.6% of the total), Braconidae (1237, 13.4%), Tenthredinidae (573, 6.2%), Eulophidae (379, 4.1%) and Pteromalidae (309, 3.3%). Overall species richness of the Hymenoptera in northern North America is compared with surveys in Russia, Germany, Finland and the British Isles.

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Research Article Thu, 29 Apr 2021 21:00:01 +0300
Hymenoptera functional groups’ shifts in disturbance gradients at Andean forests in Southern Ecuador https://jhr.pensoft.net/article/60345/ Journal of Hymenoptera Research 80: 1-15

DOI: 10.3897/jhr.80.60345

Authors: Marina Mazón, Ximena López, Oscar Romero

Abstract: Ecosystems under ecological restoration should be monitored in order to investigate if the ecosystem is being functionally recovered, especially in highly vulnerable biodiversity hotspots like Andean forests. Here we sampled Hymenoptera families in four Andean forest reserves above 1800 masl from Southern Ecuador, in three conservation levels in each forest: low (degraded), medium (10–15 years of recovery) and high (well-conserved forest). All Hymenoptera families were classified into four functional groups: predators, herbivores, pollinators and parasitoids. A total of 32 hymenopteran families were collected, with parasitoids clearly dominating in the samples. Family assemblages were not statistically different, neither in abundance nor family richness. Assemblages were more similar between them in the high and medium areas than in low conservation areas, where assemblages were very variable and showed a higher functional diversity in two of the reserves. The low presence of pollinators may be due to the high humidity during the sampling and the sampling method. Although some results are promising for the restoring trajectory, especially for parasitoids, we should keep in mind that this is at family level, so it would be interesting to know if these patterns persist at lower taxonomic levels.

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Research Article Tue, 29 Dec 2020 15:40:23 +0200
Translucent cuticle and setiferous patches in Megaspilidae (Hymenoptera, Ceraphronoidea) https://jhr.pensoft.net/article/13692/ Journal of Hymenoptera Research 60: 135-156

DOI: 10.3897/jhr.60.13692

Authors: Carolyn Trietsch, Istvan Miko, Jonah M. Ulmer, Andrew R. Deans

Abstract: All Ceraphronoidea have metasomal patches of translucent cuticle and setae that have never been investigated before, despite their potential behavioral and phylogenetic relevance. To understand the internal and external morphology of these structures, specimens were examined using a broad array of histology-based methods, including transmission electron microscopy (TEM), scanning electron microscopy (SEM), confocal laser scanning microscopy (CLSM) and serial block-face scanning electron microscopy (SBFSEM). For the first time, the setiferous patches are shown to be associated with exocrine glands in Ceraphronoidea. The proposed glandular function is the secretion of pheromones, with the setae above the pore openings serving as a surface for evaporation. The translucent cuticle is morphologically distinct from the setiferous patches; structures resembling lamellar bodies were found underneath the translucent cuticle, and may be associated with photoreceptors or endocrine glands. The locations of translucent cuticle on the metasoma are unique to different families and genera within Ceraphronoidea, and could be useful for inferring phylogenetic relationships. The character distribution suggests that the genera Trassedia and Masner are more closely related to Ceraphronidae than Megaspilidae. We found similar structures containing translucent cuticle in Orussidae and Ichneumonoidea, indicating that these structures are potentially a rich character system for future phylogenetic analysis in Hymenoptera.

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Research Article Mon, 30 Oct 2017 09:53:38 +0200
A new species of Ophrella Middlekauff, 1985 (Hymenoptera, Orussidae) from French Guiana https://jhr.pensoft.net/article/9075/ Journal of Hymenoptera Research 51: 171-185

DOI: 10.3897/jhr.51.9075

Authors: Lars Vilhelmsen

Abstract: Ophrella seagi sp. n. is described and illustrated from a female and a male collected in French Guiana. Additional Orussidae from this country are listed in an Appendix. The new species differs from other members of Ophrella in a number of features, and the diagnosis of the genus is revised accordingly. A key to Ophrella species is included. The new species is included in a continuously updated morphological data set assembled for the Orussidae and its phylogenetic position discussed.

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Research Article Mon, 29 Aug 2016 17:12:45 +0300
Sawflies (Hymenoptera, Symphyta) of three Mid-Atlantic Parks in the George Washington Memorial Parkway, U.S.A. https://jhr.pensoft.net/article/4106/ Journal of Hymenoptera Research 39: 17-31

DOI: 10.3897/JHR.39.7907

Authors: Edward Barrows, David Smith

Abstract: A diverse sawfly fauna of 176 species in 66 genera in 10 families occurred in three parks in the George Washington Memorial Parkway – Dyke Marsh Wildlife Preserve (DMWP), Great Falls Park (GFP), and Turkey Run Park (TRP). Adult sawflies flew from early March through mid-November. They included the rarely-collected Kerita fidala Ross, a leafminer of Mertensia virginica (L.) Pers. ex Link (Boraginaceae) and an unidentified Caliroa sp. which consumes Staphylea trifolia L. (Staphyleaceae). Nine of the collected species are alien ones in North America. Based on coefficients of community, DMWP was more similar to TRP than GFP, and GFP and TRP were more similar to one another than to DMWP. In DMWP, most species were uncommon in samples. Ninety-five percent of the reported host genera of the collected sawfly species occurred in all three of the parks.

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Research Article Fri, 26 Sep 2014 00:00:00 +0300