Subject: What kind of beetle is this
Location: Mississippi
August 5, 2014 9:52 am
I live in Mississippi and found this in my office.
Signature: Tayne

Caterpillar Hunter

Black Caterpillar Hunter

Dear Tayne,
This beautiful beetle is a beneficial Black Caterpillar Hunter,
Calosoma sayi.  You can compare your image to images posted to BugGuide.  According to BugGuide, it can be recognized by being:  “Large, black, with prominent gold or red punctures and blue or green margins of elytra. (These are not prominent on cursory inspection–the beetle appears all black.) Resembles C. calidum but larger (25-28 mm vs. 16-27 mm) and more southern in distribution. Quoting from Ciegler (2000).”  The red punctures are visible in your image despite the lack of critical focus and clarity.

Location: Mississippi

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