Nigel Cattlin / Hide beetle (Dermestes maculatus) on leather, feeds on carrion or dry animal products. England, UK.

MYN / Dirk Funhoff / Ground / leather beetle (Carabus coriaceus), Bienwald, Germany. Meetyourneighbours.net project.

MYN / Dirk Funhoff / Ground / leather beetle (Carabus coriaceus), Bienwald, Germany. Meetyourneighbours.net project.

Doug Wechsler / Horned passalus (Odontotaenius disjunctus) pupa in rotten log ready to metamorphose, Schuylkill Centre for Environmental Education, Philadelphia, USA August

Doug Wechsler / Bess beetle larva (Odontotaeniius disjunctus) in rotten log, Philadelphia, Pennsylvania, USA, July.

John Abbott / Downy Leatherwinged Beetle ( Podabrus pruinosus) on white background, Kernville, Kern County, California, USA, June.

Doug Wechsler / Bess beetle larva (Odontotaeniius disjunctus) in rotten log, Schuylkill Center, Philadelphia, Pennsylvania, USA, July.