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For Insects, Spiders & Their Kin
For the United States & Canada
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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


Family Caeciliusidae - Lizard Barklice

Barklouse - Xanthocaecilius sommermanae Yellow-eyed barklouse - Xanthocaecilius Barklouse at lights - Xanthocaecilius sommermanae Caeciliusidae, Lizard Barklice, big green eyes - Xanthocaecilius sommermanae - male Caeciliusidae, Lizard Barklice - Xanthocaecilius sommermanae - male Barklice - Xanthocaecilius sommermanae - male Xanthocaecilius quillayute - male Bark louse on rhododendron bud - Xanthocaecilius sommermanae

barklouse - Valenzuela hyperboreus ? - Valenzuela pinicola Stonefly ? - Valenzuela flavidus Lizard Barklouse - Valenzuela subflavus - female 092712BLice1 - Valenzuela posticus Valenzuela flavidus - female Lizard Barklouse -  - Maoripsocus Small yellow barklice - Valenzuela flavidus Valenzuela male - Valenzuela - male