Bruno D'Amicis / Tenebrionid beetle (Tenebrionidae) crossing Fennec fox (Vulpes zerda) tracks on sand. Grand Erg Oriental, Kebili Governorate. Tunisia.

Nigel Cattlin / Rust red flour beetle (Tribolium castaneum) on cereal grain debris, a pest of stored crops.

Alain Dragesco-Joffe / Typical saharan Darkling beetle (Tenebrionidae) Tenere Sahara, Niger.

MYN / Lily Kumpe / Darkling beetle (Gonocephalum sp) William Bay National Park, Western Australia. Meetyourneighbours.net project.

MYN / Lily Kumpe / Purple darkling beetle (Cyphaleus sp) William Bay National Park, Western Australia. Meetyourneighbours.net project.

Emanuele Biggi / Desert darkling beetle (Onymacris sp.) drinking water by collecting water droplets contained into the early morning fog in tiny ridges of its hardened wings (elytra), Swakopmund, Dorob National Park,...

Doug Wechsler / False mealworm beetle (Alobates pensylvanica) head, Fort. Washington State Park, Philadelphia, Pennsylvania, USA. April.

Emanuele Biggi / Dead wrinkle-lipped free-tailed bat (Chaerephon plicatus) pup being eaten by insects, including the endemic darkling beetle (Guanobius borneensis). Gomantong cave, Borneo, Sabah, Malaysia.

Chris Mattison / Darkling beetle (Akis ilonka) Algarve, Portugal.

Chris Mattison / Darkling beetle (Akis ilonka) Algarve, Portugal.

Chris Mattison / Darkling beetle (Akis ilonka) Algarve, Portugal.

Adrian Davies / Darkling beetle (Onymacris plana) Sossusvlei, Namib Desert, Namibia