Black beetle

[Billy B]

Wasn't able to find a photo or name of the beetle in California reference's, but sure somebody in this forum can identify it.

Nikon d7100 w Am Scope 4x objective

Nikon D7100 w Am Scope 4x objective

Nikon D7100 w 105 mm Kiron lens

[__K__]

I'm as far from as expert as we come.. but looks to me like the "carabus coriaceus"?

An old image of mine of the specimen that I suggested..
https://scontent.farn1-1.fna.fbcdn.net/ ... e=5F83944A

[Billy B]

Thank you _K_ . I believe your right.

[rjlittlefield]

Nice images!

looks to me like the "carabus coriaceus"?

Seems like the right family, but I'd guess the genus as Calosoma.

Image #2 clearly shows the "Mandibles with transverse rugosities, at least basally. --->Calosoma" mentioned at https://bugguide.net/node/view/25154 .

See also https://bugguide.net/node/view/359459/bgimage .

Note the absence of that texture on the mandibles of https://scontent.farn1-1.fna.fbcdn.net/ ... e=5F83944A .

--Rik

[Arnstein Bjone]

I'm certainly no expert, but experts have told me that this one below is a carabus coriaceus.
I believe looking at the legs is the easiest way to differentiate them..?