Trox tuberculatus

Palisot de Beauvois, 1818

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Trox tuberculatus is a in the , a group of scarabaeoid specialized in feeding on dried animal remains. The occurs in the Nearctic region, with records from multiple U.S. states. Like other Trogidae, it is associated with the late stages of carcass decomposition, consuming dried skin, hair, feathers, and connective tissue. The beetle exhibits characteristic defensive behaviors including (death-feigning) and debris-covering that render it cryptic and difficult to detect.

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Pronunciation

How to pronounce Trox tuberculatus: /trɒks tjuːbərkjuːˈleɪtəs/

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Distribution

Nearctic region: United States (Arizona, Colorado, Florida, Indiana, Iowa, Kansas, Maryland, Massachusetts, Nebraska, New Mexico, South Carolina, Texas, Wyoming)

Diet

Dried animal skin, hair, feathers, fur, and connective tissue from mummified carcasses; has been observed on coyote scat containing undigested hair

Behavior

When disturbed, individuals become immobile in a rigid, random posture (), remaining unresponsive for extended periods. frequently cover themselves with debris from their surroundings, becoming nearly indistinguishable from substrate.

Ecological Role

specializing in late-stage carcass decomposition; consumes desiccated animal materials that most other carrion cannot utilize.

Similar Taxa

  • Trox sonoraeBoth are Nearctic of similar size (8-11 mm) and preference; T. sonorae is specifically documented from Colorado and the southwestern U.S., overlapping with T. tuberculatus range. Differentiation requires examination of tuberculation patterns and male .
  • Dermestes spp. also occur on dried carcasses and bones, but have clubbed , smoother body surfaces, and lack the pronounced and debris-covering habits of .

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Sources and further reading