Definition of Scarabaeidae
: a family of stout-bodied lamellicorn beetles now usually restricted to beetles (as the tumblebugs or scarabaeus) of subsocial habits that feed on dung but sometimes especially formerly extended to include the plant-feeding rhinoceros beetles, flower beetles, leaf chafers and others that are usually placed in separate families — compare cetoniidae, dung beetle, melolonthidae, rutelinidae
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Origin and Etymology of scarabaeidae
New Latin, from Scarabaeus, type genus + -idae
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