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Rancho Lomitas, Starr County, Texas, USA
October 21, 2006
Size: 13 mm
A rather skittish beetle found feeding on this flower. Size estimated. Comparing other images in the guide, this appears to be a Bothrotes species, a first in the guide for Texas. There are apparently only two North American species, and B. canaliculatus is listed from Texas in, say Beetles of Florida, but I don't have any ideas on the species. The eye notched by a ridge of the head above the antennal insertion can be seen here, apparently characteristic for this genus, shown by White, fig. 106 (1).

This photograph was taken during a field trip as part of the 2006 Texas Butterfly Festival in Mission, Texas. (Photo taken at the Rancho La Lomitas preserve. Many thanks to the Trevinos for their hospitality.)

Bothrotes plumbeus
which would be 10 - 11 mm long. We have this species in Colorado Springs.

How would you tell it apart
from the other 23 Bothrotes species?

is the only species in Colorado and your pix looks like the one..

That does appear to be a Bothrotes. Looks same as mine from New Mexico. We seem to have a canaliculatus on the Bothrotes page and this one is way different. It must be one of the other 23 species listed on Nomina Nearctica.

Other numbers this genus
Other sources list just two species--see guide page for genus.
White (1) says only females have the grooves on pronotum--very curious!

I'd say Texas would be considered western.
The Checklist of Eastern Tenebrionidae does suggest only two species but I imagine that pertains just to the area covered. Meanwhile the [url=]New Mexico F&G Dept. checklist contains six Bothrotes (scoll down to Beetle, Darkling, [Bothrotes...]).

Roger that
OK. What had confused me was the White (1) listed just two species (for North America) as well. Perhaps that was an error. I changed the statements on the guide page for the genus.

Hopefully link is active this time :-)
The New Mexico F&G Dept. checklist contains six Bothrotes (scoll down to Beetle, Darkling, [Bothrotes...]).

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