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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Barklice, Booklice, and Parasitic Lice (Psocodea) » Trogiomorpha » Atropetae » Granary Booklice (Trogiidae) » Cerobasis » Cerobasis annulata
Photo#50137
Psocid - Cerobasis annulata
Copyright © 2006 David Ellsworth

Psocid - Cerobasis annulata
San Pedro, Los Angeles County, California, USA
April 30, 2006
Size: 1.84 mm
I found this in my house on the window sill in the kitchen. I'm curious what it is, and what it was doing there (i.e. what does it eat?)

But I don't know how to go about identifying an insect like this. It's miniscule — in the photo, 1 pixel = 4.92 microns. I put it on a piece of paper for photographing.

Images of this individual: tag all
Psocid - Cerobasis annulata Psocid - Cerobasis annulata
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Contributed by David Ellsworth on 30 April, 2006 - 9:57pm
Last updated 24 March, 2009 - 1:27pm

Cerobasis annulata (Hagen)
Ed Mockford det.
His comment: "Note long winglets with brown spotting. This is a domestic sp., rare in North America. Probably established now in households of coastal California."

Moved from Cerobasis.
… v belov, 24 March, 2009 - 1:27pm login or register to post comments

Moved
Moved from Nymphs (or reduced-winged adults).
… john and jane balaban, 18 January, 2009 - 12:20pm login or register to post comments

Cerobasis, probably annulata
Cerobasis, probably annulata.
… Psocoptera, 18 January, 2009 - 11:14am login or register to post comments

Moved
Moved from Barklice and Booklice.
… john and jane balaban, 23 December, 2007 - 6:45pm login or register to post comments

Reminds us of
springtails, in the guide here but we could be totally off. Great image! Someone will know.
… john and jane balaban, 30 April, 2006 - 10:15pm login or register to post comments

 
Thanks!
And indeed, the springtails do bear quite a resemblence. But I don't think it's a springtail, because they have internal mouthparts and my specimin's mandibles are quite visible... and it didn't jump once during captivity.
… David Ellsworth, 1 May, 2006 - 1:16am login or register to post comments

 
psocid ? (maybe nymph)
See images in bugguide.
Here are a couple of other web sites with barklice/booklice info:
http://www.cals.ncsu.edu/course/ent425/compendium/psocop~1.html
http://pick5.pick.uga.edu/mp/20q?search=Psocoptera
… Joyce Gross, 1 May, 2006 - 4:02am login or register to post comments

 
Yes!
Wow, that's a dead ringer for it! Thanks a bunch.

It's funny, the first thing that came to mind when I saw it was "louse". But when I looked up images of lice on bugguide, the wings threw me off... when I looked, no nymphs showed up.

Still, I'd quite like to narrow it down a bit more. The number of antenna segments indicates it is a member of Troctomorpha, no?
… David Ellsworth, 1 May, 2006 - 8:10am login or register to post comments

 
My first thought
I agree...i dont know much about these little things but i think thats what we are looking at as well.
… Andy Varsho, 1 May, 2006 - 6:47am login or register to post comments

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