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Fall Fund Drive

Adult Bark Louse - Graphopsocus cruciatus

Adult Bark Louse - Graphopsocus cruciatus
Seattle, King County, Washington, USA
April 23, 2007
Size: 4mm
This bark louse was under a Rhododendron leaf. I think these ones look cool.

Images of this individual: tag all
Adult Bark Louse - Graphopsocus cruciatus Adult Bark Louse - Graphopsocus cruciatus


Graphopsocus cruciatus
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.

I agree!
Nice work! The other image shows silk threads over the insect. I thought only the nymphs spun the silk. I learn something new every day:-)

I've seen the adults spinning.
I had posted one in 2006 that shows an adult creating a shelter for it's eggs or for itself, I didn't stay to find out. It had just laid some eggs, though and was definitely planting threads of webbing over them.
I was a blurry picture, though: .

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