setiform

Attention was not given, however, to every type of setiform.

Setiform: in the form of a bristle or seta: when a slender short bristle arises from a thicker basal joint.

And lastly, in the midst of all is a slender setiform organ (ligula), which is the counterpart of the tongue.

Antennæ short; third joint round; arista apical, long, slender, setiform.

Antennæ very short; third joint round; arista apical, long, slender, setiform.