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umber moth

noun

  1. any of various brownish geometrid moths, esp the waved umber ( Menophra abruptaria ) and small waved umber ( Horisme vitalbata ), that are cryptically marked to merge with tree bark, and the mottled umber ( Erannis defoliaria ) whose looper larvae can strip branches and even trees Often shortened toumber
“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


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