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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Curculionoidea » Snout and Bark Beetles (Curculionidae) » Broad-nosed Weevils (Entiminae) » Eustylini » Compsus » Golden-headed Weevil (Compsus auricephalus)
Photo#89056
Golden Headed Weevil - Compsus auricephalus
Copyright © 2006 Cotinis

Golden Headed Weevil - Compsus auricephalus
Bentsen-Rio Grande Valley State Park, Hidalgo County, Texas, USA
October 21, 2006
Size: 13 mm
I was sitting still watching a bird feeder when this weevil landed on my leg. Length measured in place. Josh Rose notes this is identical with the female of the pair he found at virtually the same location:

Eric Eaton suggested this might be an Ophryastes. See comments for some references to images and some other ideas.
(See identification by Mike Thomas below.)
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Contributed by Cotinis on 30 November, 2006 - 8:41am
Last updated 28 July, 2008 - 10:41pm

Moved
Moved from Broad-nosed Weevils. Thanks for the ID, Mike!
… Cotinis, 28 July, 2008 - 10:41pm login or register to post comments

Compsus
C. auricephalus (Say).
… Michael C. Thomas, 28 July, 2008 - 3:10pm login or register to post comments

Ophryastes?
I posted photos of a mating pair of what appear to be the same species as yours (and from the same location, of course). My pair were impressively dimorphic (by weevil standards), the female green like yours, the male almost white. Eric Eaton commented that they might be in the genus Ophryastes.

Joshua S. Rose, Ph.D.
World Birding Center
Bentsen-Rio Grande Valley State Park
joshua.rose_NO_SPAM@tpwd.state.tx.us
956-584-9156 x 236
… Joshua Stuart Rose, 8 December, 2006 - 2:00pm login or register to post comments

 
Interesting plates, possibilities
from Biologia Centrali-Americana:

Two species of Ophryastes shown on this plate. Also interesting I think, is #20 and 20a on that plate, Pantomilus horridus. Color and shape of "beak" sure look right, though perhaps not the shape of the pronotum. (These are artwork, of course.) Looking at the full-size photo, do think it does have fine elytral hairs as shown in plate 20a. That species is on the nearctica.com checklist, for what that is worth. Interesting speculation, perhaps Mike Quinn will have some ideas.

Also note another plate with Ophryastes species here.
… Cotinis, 8 December, 2006 - 5:44pm login or register to post comments

 
Ooh, ooh!
An even better match to our photos here, Pantomorus uniformis, #21 on that plate. Deep elytral striations and pronotal shape, plus color, look correct. Not on the nearctica.com checklist as such, but it sure does look close.
They actually have the printed reference (uncolored plates) at NCSU, maybe I can take a look at the description, and also the size, indicated by the bar.
… Cotinis, 8 December, 2006 - 7:44pm login or register to post comments

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