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Photo#967790
Sandalus petrophya? - Sandalus petrophya - female

Sandalus petrophya? - Sandalus petrophya - Female
Lancaster County, Pennsylvania, USA
July 27, 2014
Size: 17mm
Yellow tarsal pads lead me to Sandalus petrophya. Also, I never see Sandalus niger before late October around here. It also is a good bit smaller than the S. niger I've seen.

Images of this individual: tag all
Sandalus petrophya? - Sandalus petrophya - female Sandalus petrophya? - Sandalus petrophya - female

Likely S. petrophya
Based on the current size records for S. petrophya as well as the distinctive curve in the protonum this is almost certainly S. petrophya.

 
S. petrophyta
This is a perfect match for Horn's illustration of this species. The thorax is very distinctive.

Moved
When I was a general collector I also used the color of the tarsal pads to separate the two, but not sure really how valid that is!

Moved from Beetles.

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