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


Family Caeciliusidae - Lizard Barklice

Barklouse - Xanthocaecilius sommermanae Another yellow-eyed barklouse - Xanthocaecilius sommermanae Yellow-eyed barklouse - Xanthocaecilius Tiny barklouse? - Xanthocaecilius sommermanae IMG_5978 - Xanthocaecilius Psocodea  - Xanthocaecilius sommermanae - male Caeciliusidae, Lizard Barklice - Xanthocaecilius sommermanae - male Lizard barklice - Caeciliusidae? - Xanthocaecilius sommermanae

Bark Louse - Valenzuela Barklouse - Valenzuela Valenzuela lochloosae Mockford - Valenzuela lachloosae - female little white bugs - Stenocaecilius casarum Unknown Psylloidea - Valenzuela flavidus Barklouse - Valenzuela flavidus Valenzuela flavidus ? - Valenzuela flavidus lizard barklouse - Valenzuela flavidus