The Hummingbird Clearwing Moth (Hemaris thysbe) is frequently mistaken for a hummingbird or bee based on the moth’s appearance and behavior. Adult coloration is variable, but a “furry” olive green and burgundy back is common. Its underside is light yellow or white on the thorax, and burgundy on abdomen. The wingspan is 1.6 to 2.2 inches, and the wings always have a dark reddish border with a transparent center. These moths have fast wingbeats, and hovers while collecting nectar with a long feeding tube from flowers.
During its four weeks as a caterpillar, it feeds mostly on honeysuckle, cherry trees, and hawthorns. As a moth, it feeds on a variety of flowers. These moths feed during the day, which is another factor to their mistaken identity. In the southeast, there are two broods with most activity during the summer months. The largest population of Hummingbird Clearwing Moths is along the east coast ranging from Florida to Maine. A west coast population ranges from Alaska to Oregon.