Black Bess Beetle - Mastachilus sp.

Study insects and spiders in backyard, Brisbane, Queensland, Australia. Discussion of insects and spiders evolution.

Black Bess Beetle - Mastachilus sp.

Other beetle species - Canberra & Southern Tablelands

Recyclers in the Circle of Life: Bess beetles, Odontotaenius disjunctus — Bug of the Week

Bess Beetles - FAMILY Passalidae, Aulacocyclus sp. (? A. edentulus)

Other beetle species - Canberra & Southern Tablelands

Bess Beetles - FAMILY Passalidae, Aulacocyclus sp. (? A. edentulus)

Beetles - Binginwarri Landcare Group

Bess Beetle - The Australian Museum

Horned Passalus Beetle

Beetle (Coleoptera) species - Canberra & Southern Tablelands

Other beetle species - Canberra & Southern Tablelands

Care Guide: Bessbugs Carolina Biological Supply

Beetles - Binginwarri Landcare Group

MObugs: Bess Beetles

Black Bess Beetle - Mastachilus sp.