What's That Bug? does not endorse extermination

Longhorn Beetle?
Fri, Mar 20, 2009 at 5:59 AM
I came upon this sunbathing beetle on March 2 while walking along the beach just west of Colonia, Uruguay. The beach was along the River Plate, just across from Buenos Aires, Argentina. I was wondering if it was indigenous or perhaps had washed ashore from a passing freighter.
Patrick J.McNamara
Real de San Carlos, Uruguay

Longhorned Borer Beetle

Longhorned Borer Beetle

Dear Patrick,
You are correct. This is a Longhorn Borer Beetle or Longicorn in the family Cerambycidae. We doubt it fell off of a freighter and suspect it is native. We don’t recognize the species, but perhaps one of our readers will write in with a correct identification.

Update: from Eric Eaton
Sun, 22 Mar 2009
Daniel:
Oh, and I’m fairly confident the Uroguayan longhorned beetle is a species of Trachyderes. Sure looks like it anyway.
Eric

Update:
Sun, Mar 22, 2009 at 7:05 AM
Hi Bugman:
Good call Eric. It looks like Retrachydes (=Trachyderes) thoracicus. The Argentinean link has an excellent photo about ¾ of the way down. Regards.
Karl
http://www.cerambycoidea.com/foto.asp?Id=197
http://www.argentinean-insects.com/cerambycidae.htm

Thanks Eric,
We will link to the Texas Beetle Information page since there is one member of the genus found in the U.S., Trachyderes mandibularis
, the Long Jawed Longhorn Beetle, though it is not the same species.

What's That Bug? does not endorse extermination

Leave a Reply

Your email address will not be published. Required fields are marked *