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 about 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


Genus Liposcelis

Springtail? - Liposcelis Liposcelis? - Liposcelis Liposcelis? - Liposcelis nigra Book lice in a book - Liposcelis Unknown Bark Louse - Liposcelis ornata Liposcelis Barkfly 5 - Liposcelis Booklice - Liposcelis bostrychophila
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Psocodea (Barklice, Booklice, and Parasitic Lice)
Suborder Troctomorpha
Family Liposcelididae (Booklice)
Genus Liposcelis
Explanation of Names
Liposcelis Motschulsky 1852
'fat thigh'
by far the largest genus in the family, with 24 spp. in NA(1) and >120 spp. worldwide(2)
Classification of NA fauna(3):
Genus Liposcelis Mots.
Section I
Group A: brunnea, deltachi, entomophila, fuscipes, hirsutoides, nasa, ornata, pallens, pallida, villosa
Group B: bicolor, decolor, lacinia, nigra, pearmani, rufa, silvarum, triocellata
Section II
Group C: formicaria, mendax
Group D: bostrychophila, corrodens, paeta, prenolepidis
worldwide and across NA(2); many spp. are now nearly cosmopolitan or otherwise widely spread through agency of man, mostly with stored products(4)
under bark, in ant nests, in homes(5)