The Snowberry Clearwing is a moth in the Sphingidae (Sphinx Moth) family. Ranging over most of North America, the Snowberry Clearwing can be found nectering on flowers in the summer months. The caterpillars can be found on various species of dogbane, honeysuckle, and snowberry. Check out the Snowberry Clearwing species page at the Maryland Biodiversity Project: http://www.marylandbiodiversity.com/viewSpecies.php?species=106
Photos by Jim Brighton.