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Sexton Beetle - Nicrophorus defodiens

Sexton Beetle - Nicrophorus defodiens
Mission (49.1337° N, 122.3112° W), British Columbia, Canada
August 12, 2011
Size: 1.5-2 cm
I'm curious why some sexton beetles have black ends on their antennae like mine but others have orange. Is there any significance to it?

Moved tentatively per Guy's suggested ID
Moved from ID Request.

club color highly diagnostic

best guess
based on visible characters is N. defodiens. Coloration of the epipleuron is also important in hanging names on these critters.

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