Saturday, July 26, 2014

October Thorn Moth

I'm fairly new to identifying butterflies and moths in the field, so my IDs may be tenuous. Anyways, after perusing a number of field guides, I've pegged this one as a member of the Geometer moth (family Geometridae), specifically Tetracis jubararia or October Thorn Moth, which ranges from BC down to Southern California. As always, if anyone knows better, please let me know!

7/12/14 October Thorn Moth (Tetracis jubararia) on one of the kitchen cabinets. 

Description of the Family Geometridae from the Kaufman Field Guide to Insects of North America: "(Geometer moths) make up one of our largest moth families, with more than 1,400 species in the U.S. and Canada. Adults of many species rest with the wings spread out straight to the sides. Females of some species are wingless. Larvae are famed as "inchworms" - their middle pairs of prolegs are lacking or rudimentary so they move forward by looping or "inching" rather than crawling."

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