Snowberry clearwing

Please, add the scientific name as well...

There is obviously a 5th species in US: Hemaris thetis. Geographical range would fit. However, I think yours is neverthless Diffinis, since Thetis has more reddish stripes/veins and the body is creamy/whitish and not brownish like yours and Diffinis. Just for info and comparison: http://mothphotographersgroup.msstate.edu/species.php?hodges=7855.1

There are only 4 species in the US: Thysbe (browner wings), Diffinis, Senta (New Mexico) and Gracilis (more reddish and white stripe above the red ring). So, I think it is the Snowberry Clearwing Moth. I hope I am correct... http://www.silkmoths.bizland.com/hgracilis.htm http://www.silkmoths.bizland.com/hthysbe.htm