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Photo#25154
Black Caterpillar Hunter - Calosoma sayi

Black Caterpillar Hunter - Calosoma sayi
Hwy 55 and Sedwick, Durham County, North Carolina, USA
July 20, 2005
Size: 29 mm
Detail of head, antennae. Quoting from Key to Florida Ground Beetles key of genus Calosoma vs. Carabus: Antennal segments 2 and 3 carinate (ridged). Mandibles with transverse rugosities, at least basally. --->Calosoma

I believe you can see both of these features in this photo. Compare Carabus vinctus:


Images of this individual: tag all
Black Caterpillar Hunter - Calosoma sayi Black Caterpillar Hunter - Calosoma sayi Black Caterpillar Hunter - Calosoma sayi Black Caterpillar Hunter - Calosoma sayi Black Caterpillar Hunter - Calosoma sayi Black Caterpillar Hunter - Calosoma sayi