Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Upcoming Events

See Moth submissions from National Moth Week 2023

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

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events


Suborder Troctomorpha

Barklouse - Stimulopalpus japonicus They Came from the Black Thing - Liposcelis Lithoseopsis hellmani - female Sphaeropsocus bicolor - female Insect - Stimulopalpus japonicus Nanopsocus oceanicus - female Insect Nymphs Scurrying Around Storm Drain Cover - Stimulopalpus japonicus dorsal - Stimulopalpus japonicus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Psocodea (Barklice, Booklice, and Parasitic Lice)
Suborder Troctomorpha
Antennae with 14-15 segments, rarely with fewer segments (the only exception is the Palearctic genus Nephax which possess antennae of 13 segments), the flagellar segments beyond the fifth usually with secondary annulations. Labial palps 2-segmented. Forewing, when present, lacking sclerotized pterostigma. Tarsi 3-segmented.