Amphigerontia bifasciata female? - Amphigerontia bifasciata - BugGuide.Net

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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Barklice, Booklice, and Parasitic Lice (Psocodea) » Psocomorpha » Psocetae » Common Barklice (Psocidae) » Amphigerontiinae » Amphigerontia » Amphigerontia bifasciata

Photo#1686547

Copyright © 2019 Ken Schneider

Amphigerontia bifasciata female? - Amphigerontia bifasciata -

Noe Valley, San Francisco County, California, USA
July 3, 2019
Size: FW length 4.5 mm

Found on a wall and collected. I tried to key this one out using Mockford 1993 for the first time, but I think I lost my way at the meso-trochantin step in the family key. In some ways, it easier for me to picture-match with the prior photos that were IDd by DY and EM... but I will persevere! :)

This is now specimen CASENT 9096994.

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Amphigerontia bifasciata female? - Amphigerontia bifasciata - female

Amphigerontia bifasciata female? - Amphigerontia bifasciata

Amphigerontia bifasciata female? - Amphigerontia bifasciata

Amphigerontia bifasciata female? - Amphigerontia bifasciata

Amphigerontia bifasciata female? - Amphigerontia bifasciata - female

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Contributed by Ken Schneider on 3 July, 2019 - 9:24pm
Last updated 3 February, 2021 - 6:33pm

Sure looks right to me

The subgenital plate, wing venation and patterning all match.

Wish I had some live specimens of A. bifasciata. I have studied the courtship in Amphigerontia montivaga and from my preliminary study ... both the male and female appear to stridulate during courtship. I will soon stat looking for specimens here to get more data. So far other members of Psocidae don't appear to stridulate.

… Diane Young, 3 February, 2021 - 8:28pm

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Oh -

cool! I can see if I can find some live ones to send to you, perhaps - will give it a try...

… Ken Schneider, 3 February, 2021 - 8:37pm

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Moved

Moved from Barklice, Booklice, and Parasitic Lice.

… Ken Schneider, 3 February, 2021 - 6:25pm

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Added -

photos of specimen wings and subgenital plate, appears to be a good match to A. bifasicata? Moving there tentatively.

… Ken Schneider, 3 February, 2021 - 6:25pm

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North American Psocoptera ...

is not an easy read!! Sure looks like Amphigerontia based on shape of discoidal cell (spindle shaped). I'll take a closer look tomorrow.

… Diane Young, 4 July, 2019 - 5:12pm

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Thanks!

Yes, more labeled diagrams would have helped me in NAP.. :) I am using TR New's british handbook as a helpful supplement to Mockford.

… Ken Schneider, 4 July, 2019 - 5:34pm

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