plural noun
Coc·​ci·​dae | \ ˈkäksəˌdē\

Definition of Coccidae 

: an important family of homopterous insects mostly of small size, sometimes including all the scales, mealybugs, and related forms but now often restricted to the soft and tortoise scales

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History and Etymology for Coccidae

New Latin, from Coccus, type genus + -idae

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