About Carmenta bassiformis (Walker, 1856)
Carmenta bassiformis, commonly known as the eupatorium borer moth or ironweed clearwing moth, is a species of moth in the family Sesiidae. It was first described by Francis Walker in 1856. In the United States, this moth is found in an area ranging from Massachusetts to Florida in the east, extending west to Wisconsin, Kansas, and Texas. Adult moths have a wingspan between 18 and 26 millimeters. They are active as adults from late May through September. The larval stage of this moth feeds on the roots of two plant groups: ironweed and Joe-Pye weed.