Stegobium paniceum (Linnaeus, 1758)


Drugstore beetle, also known as the biscuit beetle (Ward and Humphries, 1977) or bread beetle (Ward, 1981), Stegobium paniceum (Linnaeus, 1758) (Coleoptera: Anobiidae) is distributed throughout the temperate and tropic regions of the world (Abdelghany et al., 2010). It has a complete life cycle (holometabolous: egg, larva, pupa, and adult). Adults are nondescript, brown beetles that are oval in shape and measure a few millimeters in length, while larvae are grub-form in appearance. This insect completes its lifecycle in approximately 20 weeks depending on environmental conditions. Historically, this insect has been considered a pest of stored products as it ‘contaminates’ various materials of human and animal use as food and feed respectively; however, more recent interest has been in the potential development of this insect for mass-production and use as a source of protein for human consumption (Kok, 1983).


  • Abdelghany, A.Y., Awadalla, S.S., Abdel-Baky, N.F., El-Syrafi, H.A. and Fields, P.G., 2010. Effect of high and low temperatures on the drugstore beetle (Coleoptera: Anobiidae). Journal of Economic Entomology 103: 1909–1914.
  • Kok, R., 1983. The production of insects for human food. Canadian Institute of Food Science and Technology Journal 16: 5–18.
  • Ward, J.P., 1981. Mating behaviour and the mechanism of male orientation in the anobiid bread beetle, Stegobium paniceum. Physiological Entomology 6: 213–217.
  • Ward, J.P. and Humphries, D.A., 1977. A secondary sexual character in adult Stegobium paniceum (L.) (Coleoptera: Anobiidae) and its probable function. Journal of Stored Products Research 13: 95–97


Stegobium paniceum
Kingdom Animalia
Phylum Arthropoda
Class Insecta
Order Coleoptera
Family Anobiidae
Subfamily Anobiinae
Genus Stegobium
Species S. paniceum
Author citation (Linnaeus, 1758)
Common names  
drugstore beetle, bread beetle, biscuit beetle