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American stag beetle (male)

Lucanus elaphus


Very large. Body length 30-40 mm (males, without mandibles), 45-60 (males, including mandibles), females are 30-35 mm. Males are distinctive with elongated mandibles, huge size. Females are similar, but without huge mandibles. Differentiate from Lucanus capreolus by dark legs, smooth (not punctate) pronotum. Mandibles of female L. elaphus have several small teeth, just one tooth in male (and female?) L. capreoulus. Labrum (upper "lip") is triangular in Lucanus elaphus (male and female), blunt in Lucanus capreolus(male and female).


Deciduous forests


This specimen is a male. Also known as "giant stag beetle."

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1 Comment

GregMayberry 11 years ago

Awesome photo! Goody, I would like to meet/communicate with you. Wondering if we've already met. BioBlitz? Master Naturalist? Please contact me via facebook at SHS ENV SCI.

Spotted by

Tulsa, Oklahoma, USA

Spotted on May 11, 2006
Submitted on Jan 10, 2012

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