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tortoise beetle

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noun
  1. any of several turtle-shaped leaf beetles, as Chelymorpha cassidea (argus tortoise beetle or milkweed tortoise beetle), which resembles the ladybird beetle and feeds primarily on bindweed and milkweed.

Origin of tortoise beetle

First recorded in 1705–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for tortoise beetle

tortoise beetle

noun
  1. a metallic-coloured leaf beetle of the genus Cassida, in which the elytra and terga cover the body like a shell
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012