The Collaborative International Dictionary
Thysbe \Thys"be\, n. [NL., fr. L. Thisbe maiden beloved by Pyramus, Gr. ?.] (Zo["o]l.) A common clearwing moth ( Hemaris thysbe).
Wikipedia
Hemaris thysbe, commonly known as the hummingbird clearwing, is a moth of the Sphingidae (hawkmoth) family. Coloration varies between individuals, but typically the moth is olive green and burgundy on its back, and white or yellow and burgundy on the underside. Its wings are transparent with a reddish brown border. It has light colored legs, which combined with the lack of striping on the underside is diagnostic. Beating its wings rapidly, H. thysbe hovers to collect nectar from a variety of flowers. The combination of its appearance and its behavior commonly leads to it being confused with a hummingbird or bumblebee.
Hemaris thysbe is found in a large portion of the United States, with a range extending from Alaska to Oregon in the west and from Maine to Florida in the east. It is a migratory species and is most common in the eastern United States. H. thysbe was two broods a year in the southern portion of its range, but only one in the north. As a caterpillar, it feeds on honeysuckle and several types of fruit trees.
Due to the variable appearance of H. thysbe, it has often been mistakenly described as multiple distinct species. It was first identified by Johan Christian Fabricius in 1775. The moth is not endangered and has minimal economic impact upon humans.