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Photo#150699
Cremastocheilus - Cremastocheilus lengi

Cremastocheilus - Cremastocheilus lengi
Sycamore Canyon, Santa Cruz County, Arizona, USA
August 4, 2007
Size: 10mm
Found with Pheidole sp. ants under rock. Ant host included.

Pics taken with automontage system.

Looks like it could be C. spinifer. See here.

Images of this individual: tag all
Cremastocheilus - Cremastocheilus lengi Cremastocheilus - Cremastocheilus lengi Cremastocheilus - Cremastocheilus lengi Cremastocheilus - Cremastocheilus lengi Ant host for Cremastocheilus - Pheidole Ant host for Cremastocheilus - Pheidole

Moved
Moved from Cremastocheilus.

Cremastocheilus lengi Cazier
Cremastocheilus lengi can be easily separated out from other Cremastocheilus, it has 4-segmented tarsi. Pheidole desertorum has been reported as the most probable host ant for this beetle. [A Comparative Study of the Symbiotic Relationships Between Beetles of the Genus Cremastocheilus (Coleoptera: Scarabaeidae) and their Host Ants (Hymenoptera: Formicidae. Gary D. Alpert, Sociobiology vol 25, No. 1 1994] The clypeus is also strongly carinate at middle, elytra disc with punctures in the form of elongate scratches, some of the punctures being longitudinally connected. This beetle has been collected from Pheidole nests on several occasions. Distribution is primarily central and southern Arizona.

 
Thanks
Thanks for the det and info and reference Gary. I'll have to check your paper out.

I remember these:-)
Glad you got your own specimens there! I just took mine off the styrofoam block the other day:-)

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