On Sep 20, 2006, Magpye from NW Qtr, AR (Zone 6a) wrote:
The larvae (also known as the Carpenter-worm) .. tunnels in the trunks and branches of various trees; including poplar, willow, locust, oak, elm and sugar maple.
The life cycle of this species takes three to four years to complete. This species of moth, is a noisy flyer .. making a loud buzzing sound as it circles under lighting.
Both male and female .. have translucent wings, mottled in gray and near black. The forewing of the male is somewhat darker and less mottled than in the female, but there is some variation from one individual to another. The general appearance of the wing is suggestive of black netting over a gray and black background. The hindwing of the male is near-black, with a wide, yellow to deep orange band along the outer margin. The hindwing of the female is dark smoky gray without any colored band. Both sexes have heavy bodies, with a light gray head and thorax. The wingspan ranges from 4.3 to 8.5 cm, the female being larger.