Resource Information
Immature Aphids

cauda
usually shaped quite differently from that of adult (Aphidinae broadly rounded instead of fingerlike) (Macrosiphinae triangular instead of elongate)

cornicles
usually shorter than those of adults

antenna
no secondary sensoria
younger forms with fewer; number of antenal segments than adults

abdomen
similar in shape to that of adults

alatoid nymph
wing pads present on thorax