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

Information, insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, 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

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


Mallophaga (Chewing Lice)

Bird Louse Damalinia caprae Nymph - Damalinia caprae bird louse Dog biting lice - Trichodectes canis Louse found on a cat - Felicola subrostratus Cattle Louse Duck Louse Duck Louse
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.