A key to insect larvae commonly found on leaves and bark
| Character | Go to |
|---|---|
| 1a. Thoracic legs present (Fig. 1)………… | 2 |
| 1b. Thoracic legs absent………… | Predaceous Flies |
| 2a. Prolegs present (Fig. 1)………… | 3 |
| 2b. Prolegs absent………… | 4 |
| 3a. Crochets present (Fig. 2), usually 5 or fewer pairs of prolegs………… | Moths and Butterflies |
| 3b. Crochets absent, usually 6 or more pairs of prolegs………… | Sawflies |
| 4a. Mouthparts forward facing (Fig. 3)………… | Lacewings |
| 4b. Mouthparts downward facing………… | 5 |
| 5a. Skeletonizing leaves (Fig. 4)………… | Leaf Beetles |
| 5b. Not skeletonizing leaves………… | Lady Beetles |