Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
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

Calendar
Upcoming Events

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


Superfamily Garypoidea

 
 
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The pseudoscorpions of Illinois
By Hoff C.C.
Bull. INHS 24: 413‒498, 1949

Order Pseudoscorpiones. In: Zhang Z.-Q. (ed.) Animal biodiversity: An outline of higher-level classification...
By Harvey M.S.
Zootaxa 3703: 34–35, 2013

Photographic key to the Pseudoscorpions of Canada and the adjacent USA
By Buddle C.M.
CJAI 10: 1‒77, 2010
Online version📥︎
All the diagnostic characters are microscopic; none is visible on dorsal habitus photos ∴ sorting pseudoscorpions from live photos even to families is hardly possible

World Arachnida Catalogue
Western Australian Museum, Leibniz Institute for the Analysis of Biodiversity Change, & Natural History Museum Bern
Online here

Spiders of North America
By Sarah Rose
Princeton University Press, 2022
Substantial guide with 624 pages with 2,830 color illustrations and 508 maps. Foreword by Bug Eric (Eric Eaton).
Update 13 May 2023. Having used this book for a while now, am very impressed. Photos are excellent, and plentiful.

Amazing Arachnids
By Jillian Cowles
Princeton University Press, 2018
“This engaging book is beautifully written and illustrated, and should appeal to anyone interested in natural history. I enjoyed reading Amazing Arachnids.” —Paula Cushing, Denver Museum of Nature and Science

“Cowles has assembled a fascinating collection of phenomena pertaining to arachnids and presented it with a narrative that is simply a joy to read.” —W. David Sissom, West Texas A&M University

Death comes on two wings: a review of dipteran natural enemies of arachnids
By Gillung J.P., Borkent C.J.
J. Arachnol. 45: 1–19, 2017

Catalogue of the Smaller Arachnid Orders of the World: Amblypygi, Uropygi, Schizomida, Palpigradi, Ricinulei and Solifugae
By Mark S. Harvey
CSIRO Publishing, Australia, 2003

 
 
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