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

Calendar
Upcoming Events

BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of 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

Previous events


TaxonomyBrowseInfoImagesLinksBooksData
Photo#126928
Bark Louse - Graphopsocus cruciatus

Bark Louse - Graphopsocus cruciatus
Seattle, King County, Washington, USA
July 12, 2007
Size: 2.5mm
Found at porch light at night.

Moved

Graphopsocus cruciatus
I agree with "psocoptera". The wing markings and vein patterns on this species is unlike most other Psocoptera in North America...five dark black marks in the first half of the wing and a light beige "F" mark in the second half of the wing. A species of Cerastipsocus also has an "F" but the discoidal cell (in the centre of the wing) is very different. Graphopsocus cruciatus; Family Stenopsocidae is thought to have been introduced in the 1930 to both the east and west coast from Europe or Asia. After quickly spreading up and down both coasts it is now slowly moving inland.

 
Thank you both!
These are extremely common in my yard, usually underneath the leaves of various broad leaf evergreens.

FAmily Stenopsocidae, genus G
FAmily Stenopsocidae, genus Graphopsocus could be crusiatus

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.