Identify beetle from Costa Rican jungle
Location: Caribbean lowland rainforest, Costa Rica
August 19, 2011 8:33 am
I photographed this beetle in caribbean rainforest (La Selva) in Costa Rica. If anyone could identify it I would be most grateful!
Signature: Adrian Hepworth
This is some species of Weevil, though we have not been able to find a matching photo online. Weevils are sometimes called Snout Beetles or Bill Bugs because of the shape of their heads.
Many thanks Daniel – I had the same problem! Much appreciated anyway.
Perhaps one of our readers will eventually provide an identification. Sometimes this even happens years later.
Karl provides an answer
October 27, 2011
Weevil from Costa Rica – August 19, 2011
Hi Daniel and Adrian:
I believe it is a Straight-snouted Weevil (Brentidae) in the sub-family Brentinae (tribe Arrhenodini). The general shape, color and pattern appear to be quite common Brentids globally, but I think I can narrow this down to one of two very closely related genera; Arrhenodes or Estenorhinus. Both have representative species in Central America but online photos are difficult to find. Based on the text description and illustrations found in the Electronica Biologia Centrali-Americana (see Figure 11), I am leaning towards E. guttata. The irregular black patches on the sides of the thorax are apparently diagnostic for the species. I can’t be certain but I believe that is getting pretty close. Regards. Karl