Black Bess Beetle - Mastachilus sp.

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

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Care Guide: Bessbugs Carolina Biological Supply

Horned Passalus Missouri Department of Conservation

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Bess Beetles of Kentucky - University of Kentucky Entomology

Passalid Beetle

Bess Beetle - The Australian Museum

Bess Beetles Montana Public Radio