Latest Articles from Journal of Hymenoptera Research Latest 6 Articles from Journal of Hymenoptera Research https://jhr.pensoft.net/ Fri, 29 Mar 2024 13:58:21 +0200 Pensoft FeedCreator https://jhr.pensoft.net/i/logo.jpg Latest Articles from Journal of Hymenoptera Research https://jhr.pensoft.net/ A checklist of South Dakota bumble bees (Hymenoptera, Apidae) https://jhr.pensoft.net/article/94584/ Journal of Hymenoptera Research 94: 271-286

DOI: 10.3897/jhr.94.94584

Authors: Abigail P. Martens, Paul J. Johnson, Eric A. Beckendorf, Louis S. Hesler, Jesse D. Daniels, Karl A. Roeder

Abstract: Several bumble bee species (Bombus Latreille) are declining and efforts to conserve populations will be strengthened by an improved knowledge of their geographic distribution. Knowledge gaps exist, however, especially in central portions of North America. Here we report 29 species of bumble bees from South Dakota in the north-central USA, based on 130 years of records from 1891 to 2021. Specimens or observations were available for >90% of the 66 counties, though they were not distributed evenly as most records came from Pennington, Lawrence, Custer, Brookings, and Day Counties. The five most commonly collected or reported bumble bee species were B. griseocollis (54 counties), B. pensylvanicus (41 counties), B. fervidus (39 counties), B. huntii (27 counties), and B. bimaculatus (25 counties). Twenty species were recorded from 10 or fewer counties. Despite differences in occurrence, 66% of the Bombus species in South Dakota were collected or observed since 2020, including six of the nine species of conservation concern (B. fraternus, B. pensylvanicus, B. fervidus, B. occidentalis, B. terricola, and B. morrisoni). However, the critically endangered B. affinis, B. variabilis, and B. suckleyi have not been collected or observed for over 50 years. While this checklist is the first for South Dakota bumble bees in nearly 100 years, data are still lacking as ~55% of counties had fewer than five species reported. We suggest future efforts should focus on these under-sampled areas to fill in baseline knowledge of the wild bee fauna towards completing a more holistic view of bumble bee distributions across the Great Plains.

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Checklist Tue, 20 Dec 2022 09:54:57 +0200
First record in Africa of the parasitoid Dolichogenidea gelechiidivoris (Hymenoptera: Braconidae) on tomato leafminer Tuta absoluta (Lepidoptera: Gelechiidae) from tomato fields in Algeria https://jhr.pensoft.net/article/75279/ Journal of Hymenoptera Research 88: 115-131

DOI: 10.3897/jhr.88.75279

Authors: Farial Krache, Malika Boualem, Jose Fernandez-Triana, Amber Bass, Judit Arnó, Fouzia Benourad

Abstract: The Neotropical parasitoid wasp Dolichogenidea gelechiidivoris (Marsh, 1975) (Hymenoptera: Braconidae), one of the most important biocontrol agents of the South American tomato pinworm Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae), is reported for the first time from Africa, from tomato grown in open fields and greenhouses in several regions of Algeria. Color photos of specimens from Algeria, Spain and South America, as well as the holotype and one paratype are provided. Morphological and molecular details to better characterize and recognize the species are also provided. We speculate that D. gelechiidivoris arrived accidentally to Algeria from Spain, where it has recently been reported. The consequences for future biocontrol projects against T. absoluta in Africa are discussed.

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Research Article Thu, 30 Dec 2021 14:15:01 +0200
A study of the biology of Epicharis (Epicharoides) picta using emergence-traps https://jhr.pensoft.net/article/56898/ Journal of Hymenoptera Research 80: 147-167

DOI: 10.3897/jhr.80.56898

Authors: Hugo de Azevedo Werneck, Lucio Antonio de Oliveira Campos

Abstract: This study investigates the nesting habits of Epicharis picta in a nest aggregation located in a fragment of the Atlantic forest in Southeastern Brazil. Ten emergence-traps were set up in this nest aggregation to standardize data collection of phenology, natural enemies, and sex ratio. Epicharis picta nests were in an area of 160 m² with a density of 41 nests/m². Nest and cell architecture are described. Epicharis picta is a protandrous, univoltine species with its emergence in this study occurring between 28 January and 15 April. We provide direct evidence of parasitism on E. picta by Rhathymus friesei, Tetraonyx sexguttata and T. aff. lycoides. The predator Apiomerus lanipes was found to prey Epicharis for the first time. We suggest the use of emergence-traps as tools to support studies of ground-nesting bees. In addition, we compile, update, and discuss data on the nesting biology of all Epicharis subgenera.

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Research Article Tue, 29 Dec 2020 08:28:21 +0200
Cavities in bromeliad stolons used as nest sites by Euglossa cordata (Hymenoptera, Euglossini) https://jhr.pensoft.net/article/22834/ Journal of Hymenoptera Research 62: 33-44

DOI: 10.3897/jhr.62.22834

Authors: Samuel Boff, Isabel Alves-dos-Santos

Abstract: Herein, we describe nests of the orchid bee Euglossa cordata that were constructed in cavities of Aechmea distichantha (Bromeliaceae) stolons. We present data about nest and cell size, number of adults and brood, and analyses of larval provisions. The presence of E. cordata carcasses embedded in the resin of nest partitions indicates that these nests were used by multiple generations. Based on larval provisioning, E. cordata is polylectic and relies heavily on a few plant species.

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Research Article Mon, 26 Feb 2018 09:50:31 +0200
DNA barcodes, expanded distribution, and redescription of Apanteles hemara Nixon, 1965 (Hymenoptera, Braconidae, Microgastrinae), a potential biocontrol species against amaranth leaf-webbers in Africa https://jhr.pensoft.net/article/13361/ Journal of Hymenoptera Research 58: 1-15

DOI: 10.3897/jhr.58.13361

Authors: Jose Fernandez-Triana, Melanie Beaudin, Kees van Achterberg, Mawufe K. Agbodzavu, Stephen T.O. Othim, Faith W. Nyamu, Komi K.M. Fiaboe

Abstract: The microgastrine parasitoid wasp Apanteles hemara Nixon, 1965, is currently being considered as a potential biocontrol agent of amaranth leaf-webber pests in Africa. To facilitate future research and identification of the species, we characterize it from an integrative taxonomy perspective by providing a comprehensive morphological redescription, extensive illustrations (including the first images of the holotype), DNA barcodes, wasp biology, host data (Choreutidae and Crambidae caterpillars), and updated geographical distribution of the species (including eight new country records). Despite a wide distribution across four major biogeographical regions (mostly within the Old World tropics), the species seems to be relatively uniform from a molecular and morphological perspective, based on studied specimens from Africa and Asia.

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Research Article Thu, 31 Aug 2017 09:16:39 +0300
Living beyond the limits of survival: wood ants trapped in a gigantic pitfall https://jhr.pensoft.net/article/9096/ Journal of Hymenoptera Research 51: 227-239

DOI: 10.3897/jhr.51.9096

Authors: Wojciech Czechowski, Tomasz Rutkowski, Wojciech Stephan, Kari Vepsäläinen

Abstract: A unique accumulation of workers (‘colony’) of the wood ant Formica polyctena Först., trapped within an old bunker for storing nuclear weapons, is described. The source of the ‘colony’ is a large colony nesting outdoors, on top of the bunker. Individuals that have fallen down through a ventilation pipe are not able to find their way back to the mother nest. In total darkness, they have constructed an earthen mound, which they have maintained all-year-round by moulding it and keeping the nest entrances open. Judging from the huge deposits of wood-ant corpses in the bunker, the ‘colony’ has survived for years. Through these years, the mortality has been more than compensated by new workers that fall down during the active season of the free-living colony outside, and at present the number of the bunker workers is counted in hundreds of thousands. The ‘colony’ has evidently produced no offspring, which is due to low (though relatively stable) temperatures and scanty food in the bunker.

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Research Article Mon, 29 Aug 2016 10:20:26 +0300