English edit

 
A mealworm beetle

Etymology edit

meal +‎ worm + beetle

Noun edit

mealworm beetle (plural mealworm beetles)

  1. A darkling beetle (or darkening beetle) of species Tenebrio molitor, in the family Tenebrionidae, whose larvae (mealworms) are typically used as a food source for reptile, fish, and avian pets.

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