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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Beetles (Coleoptera) » Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles (Polyphaga) » Scarab, Stag and Bess Beetles (Scarabaeoidea) » Scarab Beetles (Scarabaeidae) » Rhinoceros Beetles (Dynastinae) » Cyclocephalini » Masked Chafers (Cyclocephala)
Photo#296814
Small Cyclocephala - Cyclocephala
Copyright © 2009 margarethe brummermann

Small Cyclocephala - Cyclocephala
Borrego Springs, San Felipe Valley, San Diego County, California, USA
June 27, 2009
Black light
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Contributed by margarethe brummermann on 30 June, 2009 - 6:59pm
Last updated 3 July, 2009 - 4:43pm

Check out Cyclocephala melanocephala
If its size is about 10.5-16 mm, it's probably this beetle. A very few are usually found together deep in the throat of datura blossoms, and we also have seen the larvae inside the blossoms.
… Lynn Monroe, 9 August, 2009 - 8:50pm login or register to post comments

 
No, I don't think so
I've collected c. melanocephala in several places, one of them your desert, and the pronotum is much darker than the elytra in all of them.

This may be C. hirta
… margarethe brummermann, 10 August, 2009 - 12:35am login or register to post comments

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