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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Longhorn and Leaf Beetles (Chrysomeloidea) » Longhorn Beetles (Cerambycidae) » Flat-faced Longhorn Beetles (Lamiinae) » Acanthocinini » Acanthocinus » Acanthocinus obsoletus
Photo#23524
Longhorned Beetle - Graphisurus - Acanthocinus obsoletus - female
Copyright © 2005 Joanne Shuman

Longhorned Beetle - Graphisurus - Acanthocinus obsoletus - Female
Stafford, Stafford County, Virginia, USA
July 1, 2005
Came to porch light. It looks similar to a larger male Urographis that I posted in the past but a big differnce in size. This one was small. Moves really fast so no measurement as usual. Need help with ID if possible.
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Contributed by Joanne Shuman on 8 July, 2005 - 12:21am
Last updated 22 June, 2006 - 8:19pm

ID confirmed by Mike Thomas: Acanthocinus obsoletus
… v belov, 3 May, 2010 - 1:42pm login or register to post comments

Yes, Urographis
With these markings and the large pygidium, it really has to be a Urographis. Or possibly Acanthocinus, but they seem to turn up less often. A female, of course.

With both genera, there can be a wide variance in size even within species. The common Urographis fasciatus, for example, can be as small as 9 mm or as large as 15 mm.

UPDATE. I seemed to remember some recent name changes, and just checked Nearctica.com. Sure enough, these Urographis species are now listed as Graphisurus, and the likely Acanthocinus species are now given as Neacanthocinus.

--Stephen

Stephen Cresswell
Buckhannon, WV
www.stephencresswell.com
… Stephen_WV, 8 July, 2005 - 6:40am login or register to post comments

 
Urographis
I remembered you mentioned the possible name change before too. Thank you for the update and ID.
… Joanne Shuman, 8 July, 2005 - 1:32pm login or register to post comments

 
Acanthocinus obsoletus
The antennae are a bit too long for a female Urographis. The longer, strinkingly banded antennae, slightly more slender silhouette, and dark tarsi indicate Acanthocinus obsoletus (no common name). Uncommonly collected pine feeder. Great find.
… Frank Guarnieri, 27 October, 2005 - 7:21pm login or register to post comments

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