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Results for “Proceedings of the Entomological Society of Washington”

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11 recordsLinked to original sources
USGS2014

Comparisons of genetic diversity in captive versus wild populations of the federally endangered Quino checkerspot butterfly ( Euphydryas editha quino Behr; Lepidoptera: Nymphalidae)

Captive populations can play a significant role in threatened and endangered species management. An important consideration when developing and managing captive populations, however, is the maintenance of genetic diversity to ensure that adequate variation exists to avoid the negative consequences of inbreeding. In this investigation, we compared genetic diversity patterns within captive and wild populations of the federally endangered Quino checkerspot butterfly (Euphydryas editha quino Behr [Lepidoptera: Nymphalidae]), a taxon with a restricted distribution to chaparral and sage shrublands within Riverside and San Diego counties, California. Our analyses revealed that medium to high-frequency alleles from the wild populations were also present in the captive populations. While there was no significant difference in genetic diversity as quantified by expected heterozygosity, the captive populations showed tendencies toward significantly lower allelic richness than their wild counterparts. Given that alleles from the wild populations were occasionally not detected in captive populations, periodic incorporation of new wild specimens into the captive population would help ensure that allelic diversity is maintained to the extent possible. If performed in advance, genetic surveys of wild populations may provide the clearest insights regarding the number of individuals needed in captivity to adequately reflect wild populations.

California↗
USGS2018

The bees (Hymenoptera: Apoidea) of Louisiana: an updated, annotated checklist

An annotated checklist is provided for 243 species and subspecies of bees collected from or thought to occur in the state of Louisiana, where 163 are confirmed records, 46 are probable records, and 34 are possible records. We also list twelve records considered to be “dubious” because of the absence of supporting collection data and extralimital reported ranges. Data on parish localities, seasonality, and floral records are provided when available. Specimen data are provided from two separate surveys in the state, one focusing on the fauna of longleaf pine savannas and another focusing on Cajun prairie habitat in southwestern Louisiana. Data from a previous annotated checklist of bees from longleaf pine savannas (Bartholomew et al. 2006) are included, as well as online records from the Discover Life checklist (Ascher and Pickering 2016), and bee holdings of the Louisiana State Arthropod Museum (LSAM, Louisiana State University, Baton Rouge, LA).We highlight the role that this museum and similar small institutional insect collections play in documenting faunas on local and regional scales.

Louisiana↗
USGS1987

Populations of trap-nesting wasps near a major source of fluoride emissions in western Tennessee

Trap-nesting wasps were collected from eight sites at distances of from 1.2-33.0 km from an aluminum reduction plant in western Tennessee. The sites had similar topographies, soils, and vegetation, but differed in their exposure to fluoride, which was emitted in large quantities from the plant. It was postulated that if fluoride emissions had greatly changed the insect community then relative densities of their predators would have varied accordingly. However, the degree of fluoride pollution was unrelated to the relative densities of the wasps and to the number of cells provisioned with prey. Monobia quadridens, Trypargilum clavatum, and T. lactitarse were found to have two complete generations in western Tennessee. Trypargilum collinum rubrocinctum has at least two generations, and Euodynerus megaera probably has three generations. Six other wasp species and a megachilid bee were also collected.

Proceedings of the Entomological Society of Washin↗
USGS1996

A new Bephratelloides (Hymenoptera: Eurytomidae) from seeds of Cymbopetalum (Annonaceae) in Mexico

Bephratelloides ablusus Grissell and Foster, new species, is described and illustrated based upon specimens that emerged from seeds of Cymbopetalum mayanum (Annonaceae) in southern Mexico. This is the first species of Bephratelloides that is associated with a host other than Annona. Bephratelloides ablusus is compared with its congeners from which it differs in minor character states. No external morphological characteristics suggest a specialized association with Cymbopetalum.

Proceedings of the Entomological Society of Washin↗
USGS2009

The lost micro-deserts of the Patuxent River using landscape history, insect and plant specimens, and field work to detect and define a unique community

Historical and recent records of both plants and insects are synthesized for uplands along the eastern edge of Maryland?s Patuxent River from the edge of the Piedmont south to Jug Bay. This strip is characterized by deep sandy soils found in the Evesboro and Galestown sandy loams soil series. Within this narrow strip there exists a unique flora and fauna adapted to open dry sandy soils and occurring in small remnant patches associated with old sand mining operations and scattered protected areas. We illustrate the uniqueness of these sites using four groups, vascular plants, tenebrionid beetles (Coleoptera: Tenebrionidae), tiger beetles (Coleoptera: Cicindelidae), and bees (Hymenoptera: Apoidea: Anthophila). Within each of these groups, rare species were detected whose populations were locally restricted to this soil type and whose nearest known populations were often hundreds of kilometers away. In addition to documenting the direct conservation importance of these small sandy openings along the Patuxent, we contrast the lack of any indication from vertebrate inventories that this region is unique. The combination of plant and insect inventories appears to be a better means of clarifying a site?s importance than does any survey of a single taxonomic group.

Proceedings of the Entomological Society of Washin↗
USGS2004

A new species of Rhyacophila pictet (Trichoptera: Rhyacophilidae) from Great Smoky Mountains National Park, with illustrations of females of R. Appalachia morse and ross and R. mycta ross

Rhyacophila celadon Etnier, Stocks, and Parker, n. sp., a large species of the R. nigrita species group, is described from areas in Great Smoky Mountains National Park, Tennessee and North Carolina, based on males, females, and larvae. The male is virtually identical to that of R. nigrita, but differs consistently from that species in aspects of the genitalia. The female and larva differ remarkably from those of R. nigrita. Females of Rhyacophila appalachia and R. mycta are illustrated.

Proceedings of the Entomological Society of Washin↗
USGS2006

Studies on stoneflies (Plecoptera) of Colorado with eastern faunal affinities, including a new state record of the midwestern salmonfly, Pteronarcys pictetii hagen (Plecoptera: Pteronarcyidae)

Pteronarcys pictetii Hagen nymphs were collected and reared from the South Platte River at Julesburg in eastern Colorado. Including P. pictetii, eight species are now known from Colorado that exhibit eastern North American affinities, Paracapnia angulata Hanson, Taeniopteryx burksi Ricker and Ross, Taeniopteryx parvula Banks, Acroneuria abnormis (Newman), Perlesta decipiens (Walsh), Isoperla bilineata (Say), and Isoperla marlynia (Needham and Claassen). A brief discussion of the dispersal of these species into Colorado is presented.

Proceedings of the Entomological Society of Washin↗