Defensive Nymphs of the Woolly Aphid Thoracaphis kashifolia (Hemiptera) on the Oak Quercus glauca

Figure 6

Scattered diagram of the length and width of one fore-femorotrochanter for 31 first-instar nymphs to be apterae (triangle) and 186 first-instar nymphs to be alates (circle) including 62 that actually attacked the introduced moth larvae (red closed circle) in a colony (Exp#6). First-instar nymphs (to be alates) that had the second-instar cuticle developing inside are indicated by red open circles.