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Barklouse - Indiopsocus bisignatus - male

Barklouse - Indiopsocus bisignatus - Male
Groton, Middlesex County, Massachusetts, USA
September 3, 2011

I would like to add..
that Mockford is aware of over 40 un-described species of Indiopsocus in the U.S. and many are very difficult to tell apart without dissection and slide preparation. Yours could be bisignatus but I noticed small spots at the wing margin from veins M1 to Cu1a. My specimens from Texas do not show this feature but that may be individual variation. Your specimen looks like a male based on the large compound eyes and small abdomen. Only by looking at the genitalia could we really tell for sure (Mockford may be able to tell from your photos).

Moved from Barklice, Booklice, and Parasitic Lice.
Thanks Diane, the wing spots match up and so do the white veins.

One of my favorites!
It looks like an Indiopsocus but let me think about which one. The most likely ID is I. bisignatus. Mockford's book (1) lists the rangeas " extensively in eastern U.S. from northern Minnesota south to west Florida" and west to Texas; "spottily to Wyoming and Colorado".

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