| Instructions: After reading the description below, use the dichotomous key to determine the identity of the organism. The green arrow indicates which pair to make a selection from. When you click the radio button next to the choice, you will be taken to the next choice. When you reach a choice that identifies the organism, click submit to check your answers. If you have any choices wrong, the arrow will point to the place where you made the first wrong selection. |
| Specimen 1: A large insect with two pairs of wide, clear, functional wings. Body length is about 1.5 cm with a long slender abdomen possessing very short filaments. Forewings are about the same length as hindwings, and with approximately the same area. Head is almost round (not prolonged ventrally) and possesses large eyes and short, bristle-like antenna. |