Hemaris diffinis (Bdv.)
Identification: Covell, Moths of Eastern North America, Page 40 -- The moth is easily recognized by the black scaled areas of the forewing. The thorax has black lines on the ventral surface. This moth is sometimes mistaken for a bumblebee, but does not light on flowers the way a bee does. Also, the antennae us much larger than those of bumblebees. The caterpillar host plants are dogbane and honeysuckle.