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darkling beetle

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noun
  1. any brown or black beetle of the family Tenebrionidae, the larvae of which feed on dead or decaying plant material, fungi, stored grain, etc.
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Origin of darkling beetle

First recorded in 1810–20
Also called tenebrionid.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018