Cedar Creek
Ecosystem Science Reserve
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Insects of Cedar Creek
Order COLEOPTERA
Family PASSALIDAE
(Bess Beetles)
Only three NA species occur in this Family.
Odontotaenius
disjunctus is a large beetle (30-40 mm) with striate elytra and
a strong constriction between pronotum and elytra. Larvae occur in
rotten logs where they receive regurgitate from tending adults. Not
found in Minnesota or at Cedar Creek, but I have observed this species
in Michigan.