Pest identification and confirmation—Leafhoppers
Leafhoppers may sometimes be confused with aphids or lygus bugs.
Look for leafhoppers or their cast skins on the undersides of affected
leaves. Look at their actions; they are faster than aphids and
run sideways and jump. Lygus bug nymphs are light green and also
move much faster than aphids. They can be identified by their red-tipped
antennae. Aphids can be distinguished by two tubelike structures,
called cornicles, protruding from the hind end. One or more long rows of spines on the hind legs of leafhoppers and characters on their head distinguish leafhoppers from most other insects they resemble. | 
Leafhopper nymphs
Lygus
bug nymph (left) and aphid nymphs
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