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For Insects, Spiders & Their Kin
For the United States & Canada
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Interactive image map to choose major taxa Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

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National Moth Week was July 19-27, and the Summer 2025 gathering in Louisiana, July 19-27

Photos of insects and people from the 2024 BugGuide gathering in Idaho July 24-27

Moth submissions from National Moth Week 2024

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27


Genus Trosia

 
 
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The Megalopygid genus Trosia, with description of a new species
By Harrison G. Dyar
Journal of The New York Entomological Society 7: 173-174, 1889

The Atlas of Neotropical Lepidoptera. Checklist: Part 2
By Becker, V.O. Megalopygidae. in J.B. Heppner (ed.). in J.B. Heppner (ed.)
Association for Tropical Lepidoptera and Scientific Publishers, 118-122, 1995

Revision and phylogeny of the Limacodid-Group families, with evolutionary studies on Slug Caterpillars Lepidoptera: Zygaenoidea
By Marc E. Epstein
Smithsonian Contributions to Zoology 582, 1996

Lepidoptera in the unpublished field notes of Howard George Lacey, Naturalist (1856-1929).
By Kendall, R.O., and C.A. Kendall.
Journal of the Lepidopterists' Society 25(1): 29-44., 1971
Full Text - BHL

Kendall, R.O., and C.A. Kendall. 1971. Lepidoptera in the unpublished field notes of Howard George Lacey, Naturalist (1856-1929). Journal of the Lepidopterists' Society 25(1): 29-44.

Annotated Taxonomic Checklist of the Lepidoptera of North America, North of Mexico
By Pohl, G. R. and S. R. Nanz (eds.)
Wedge Entomological Research Foundation, 2023
• Pohl, G. R. and S. R. Nanz (eds.), 2023. Annotated Taxonomic Checklist of the Lepidoptera of North America, North of Mexico. Wedge Entomological Research Foundation, Bakersfield, California, xiv + 580 pp. (order).

• Pohl & Nanz (eds.) (2023) checklist in spreadsheet (Excel) format (download).

Editors - When citing this work, please be sure to include the (eds.) after Pohl & Nanz to avoid confusion over authorship. If you have a copy of the book, it would be best to cite with the chapter author, i.e.

Descriptions of Some New Moths from Southern California
By Harrison G. Dyar
Proc. Ent. Soc. Washington 10: 52–60, 1908

Hadenine Notes and Descriptions (Phalaenidae, Leipidoptera)
By McDunnough, J.
The Canadian Entomologist, Volume 75, Issue 3, March, pp. 43-57, 1943
Available online from Cambridge University Press at this link.

Lepidoptera, Rhopaloceres and Heteroceres: Indigenous and Exotic, Supplement No. 2
By Strecker, H.
Published by Author, 1899
Maintained online by Biodiversity Heritage Library. There were fifteen publication dates from 1872-1878 with three supplements published from 1898-1900.

Supplement No. 2 available and searchable at this link.

 
 
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