Legs are long and slender. The fore leg of some Chironomidae have a tibial comb (a row of brisles) along the apex, sometimes with apiacal (tibial) spurs.
The wings are membrabous with reduced venation and a characteristic thickening of the veins in the centre of the wing (shaped as the letter Z)
Males have densely-haired antenna, however, the hairs detach readily.
Chironomidae have a characteristic humped thorax. genitalia of male Chironomids have styles, anals point, basal appendages and coxite.