[3][4][5] This genus is extremely slender with a club shaped abdomen that is at least 25 times as long as its narrowest width They range in length from about 7 to 10 mm.

The wings are either clear or have very faint brownish markings, have an alula that is much narrower than cell c at its base, a reduced anal angle, and small bare spots near the base, with faint clouding along The apical crossveins.

The thorax has short hairs on its scutum, which is mostly shining lightly pollinose above and on the sides, which are either entirely black or with a few yellow margins.

On the pleural area the anterior anepisternum, meron, metapleuron, and metasternum are all bare.

In addition to being dark brown to black in color throughout in most specimens, there are reddish hues towards the apex for some females, as well as yellow spots or bands appearing on tergites 2-5, which vary by species.