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Photo#251099
Tragidion annulatum LeConte, 1858 - Tragidion annulatum - male

Tragidion annulatum LeConte, 1858 - Tragidion annulatum - Male
Ash Mountain, 2800' elev., Tulare County, California, USA
July 6, 1983
Size: 25 mm
This was formerly T. peninsulare.

and
looks very similar to T densiventre.

 
Except for the lack of color
Except for the lack of color dimorphism between male and female, the dark blue highlights on the body and legs, and the fifth costae is absent or reduced to a faint line in the pubescence. Unfortunately I can't get the dark blue to show in the pictures (I don't have your excellent setup). Also note the hind tibia in both sexes, compared with that of densiventre.

 
Thanks for highlighting the differences
will you allow me to use your photo in the book on AZ Beetles that Art Evans and I are preparing? I have about 1700 photos ready for the illustration, but I do not have this species.

 
Sure
no problem.

 
Thanks, Dennis!

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