Group 3...
Physical features
Adults
*Antennae short, 6-10 segments
*Head narrow anteriorly forming a conical mouth opening
*Body cylindrical or spindle-shaped
*Front and hind wings slender, rod-like, with a dense fringe of long hairs. Many species are secondarily wingless.
*Tarsi 1-2 segmented, with eversible adhesive bladders apically
Immatures
*Structurally similar to adults
*Always wingless
