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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.
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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
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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