These enlarged setae consisting of
two portions: smooth stalk and pilose
flagellum; stalk basally cylindrical, but
gradually narrowed and curved to attach to
back of flagellar base; base of flagellum
flattened, laterally provided with long barbs
(Fig. 3D). Paraxial concavity anteriorly with
smaller spear-like trichobothrium, posteriorly
with three unequal solenidia and one
hypertrophied seta.