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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Barklice, Booklice, and Parasitic Lice (Psocodea) » Psocomorpha » Caeciliusetae » Narrow Barklice (Stenopsocidae) » Graphopsocus » Graphopsocus cruciatus
Photo#126928
Bark Louse - Graphopsocus cruciatus
Copyright © 2007 Cheryl Moorehead

Bark Louse - Graphopsocus cruciatus
Seattle, King County, Washington, USA
July 12, 2007
Size: 2.5mm
Found at porch light at night.
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Contributed by Cheryl Moorehead on 13 July, 2007 - 8:28pm
Last updated 15 September, 2007 - 1:39am

Moved
Moved from Barklice and Booklice.
… Cheryl Moorehead, 15 September, 2007 - 1:39am login or register to post comments

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.
… Philip Careless, 15 September, 2007 - 12:33am login or register to post comments

 
Thank you both!
These are extremely common in my yard, usually underneath the leaves of various broad leaf evergreens.
… Cheryl Moorehead, 15 September, 2007 - 12:37am login or register to post comments

FAmily Stenopsocidae, genus G
FAmily Stenopsocidae, genus Graphopsocus could be crusiatus
… Psocoptera, 30 August, 2007 - 1:31am login or register to post comments

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