Tenebroides mauritanicus

Definition

A cosmopolitan species of predatory and stored-product beetle in the family Trogossitidae, commonly known as the cadelle. Adults and larvae feed on grain, cereal products, and other stored foods, but also prey on other stored-product pests, functioning as both pest and facultative biological control agent in granaries and warehouses.

Etymology

Tenebroides from Latin tenebrae (darkness, gloom) + -oides (resembling); mauritanicus referring to Mauritania, northwest Africa, where the type specimen was likely collected.

Example

In grain-storage facilities, Tenebroides mauritanicus larvae tunnel through wheat kernels and pupate within the grain mass, while adults actively hunt larvae of other stored-product beetles such as Tribolium species.

Synonyms

• Cadelle

Related Terms

• Trogossitidae
• stored-product entomology
• post-harvest pest
• Biological control
• Coleoptera
• Tribolium

Usage Notes

Often cited in stored-product entomology literature under its common name 'cadelle.' The species exhibits pronounced sexual dimorphism in mandible size, with males bearing enlarged, curved mandibles used in combat. Its dual role as pest and predator complicates management decisions in integrated pest management programs.