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modesta or occidentalis? - Pachysphinx modesta - female

modesta or occidentalis? - Pachysphinx modesta - Female
Palisades reservoire, Idaho, USA
August 2, 2006
I havent been able to identify whether this is P. occidentalis or P. modesta. I decided eventually that modesta seemed most likely, but can anyone confirm?

yes, it looks like P. modesta
Though I have a hunch (maybe way off) that the two "species" may intergrade in Idaho and south through the Rockies where they meet.

Moved from Pachysphinx.

Moved from Moths.

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