Moved from Giant Silkworm and Royal Moths.

Moved from Moths.

In the Owen's Valley they are gloveri, but some are supposed to show some influence from hybridization with H. euryalus, which contacts gloveri through the passes in the Sierra Nevada (notably in the area of Monitor Pass (not that far from Bishop). Supposedly hybrids dominate the population at Monitor Pass.

Your's looks like pretty typical gloveri to me, but the elongate central spot on the hind wing may be due to some genes from euryalus (but specimens like this can be seen in populations as far east as Colorado, so hybrid genes aren't necessarily so).

a tidbit of trivia and opinion:

Seems to me that H. euryalus and H. columbia should be called subspecies of one species, since gloveri and euryalis form "blend zones" wherever they meet. After-all, that's why gloveri is now lumped together with columbia as a subspecies. If so treated, they would all three become subspecies of H. euryalus, since it's the oldest name.

I thought this was going to be an easy one. First looked like a Cecropia, but now I'm leaning toward a Columbia. Best hold out for someone familiar with west coast fauna. Sorry not more help.