Suborder Romoptera 



Feet usually with two segments; wings when present four in 



number 6 



5 — Wings transparent 7 



Wings opaque, whitish Family Aleyrodidce 



Feet with only one segment; males without mouth- parts and 

 with two wings only; females wingless and scale-like or 

 gall-like in form, and covered with wax in plates, layers 



or in powdery form Family Coccidce 



6 — Hind thighs swollen; antennae with nine or ten segments. . . 

 Family Psyllidce 



Legs long and slender; antennae with three to seven segments 

 Family Aphididce 



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