visible | recessive
eye
notopleural bristle
orbital bristle
supraalar bristle
tarsal segment
wing
wing vein L5
Tarsal segments 1..4, mostly 2-'jointed'; wings thin, widely expanded; wing vein L5 sometimes short; extra orbital bristles, notopleural bristles, supraalar bristles; eyes may be slightly rough.
T.C. Hsu, 44k22.