Virtual Exhibit on Canada's Biodiversity






back to order Coleoptera
insect database

Habitat
Adults: terrestrial
Immatures: terrestrial

Feeding Habits
Adults: saprophagous
Immatures: saprophagous

Size: 30 to 40 mm
Flight : strong flier

North American
Species:
3


Coleoptera Passalidae
Bess beetles

Front Wings: hardened
Hind Wings: membranous
Mouthparts: chewing
Antenna Length: shorter than body
Antenna Shape: elbowed
Front Legs: unmodified
Hind Legs: unmodified

Special Characteristics: Bess beetles are elongated, flat and shiny, and have a short horn on the front of the head that points forward.

Comments: These beetles are found in colonies in decayed logs. The adults prepare the decaying wood with their salivary secretions to feed it to the young. Both the larvae and the adults produce a squeaking sound to communicate with each other. They also produce this sound when disturbed. This is mostly a tropical or subtropical family and there is only one species in eastern Canada.

Species:
Odontotaenius disjunctus (Illiger)

Common Name:
Patent-leather beetle

Feeding Habits: Adults eat decaying wood, and feed pre-chewed food to the larvae.

Distribution:
Ontario and Quebec.

Comments:
This species lives in decaying logs in deciduous forests. It measures between 32 and 36 mm in length.