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

Upcoming Events

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

National Moth Week was July 23-31, 2022! See moth submissions.

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


Mallophaga (Chewing Lice)

Louse bird louse bird louse Prob. Trochiliphagus lineatus Pigeon Louse - Columbicola columbae Raccoon Louse - Trichodectes octomaculatus - Trichodectes Chicken Shaft Louse - Menopon sp. Slender Pigeon Louse - Columbicola columbae
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Psocodea (Barklice, Booklice, and Parasitic Lice)
No Taxon (Phthiraptera (Parasitic Lice))
No Taxon Mallophaga (Chewing Lice)
Synonyms and other taxonomic changes
=Lipoptera Shipley 1904
0.5-6 mm, rarely up to 10 mm(1)
on hosts only; die fast outside host body
Parasites of birds and mammals. Most specialize on only one or a few species of hosts.
Life Cycle
Eggs are attached to the hair or feathers of the host by a drop of waterproof glue. Larvae hatch from the eggs and join the adults in feeding. They molt as they grow but change little in aspect: paurometablolous
Some are important pests of domestic animals, especially poultry(1)
Internet References
Photos of common nearctic spp.