A ventrally located campaniform sensillum of larval abdominal segments 1-7 whose external sensory structure is surrounded by a ruffled annulus and which is innervated by the 2 dendrites of the v'es2 neurons.
A ventrally located campaniform sensillum of larval abdominal segments 1-7 whose external sensory structure is surrounded by a ruffled annulus and which is innervated by the 2 dendrites of the v'es2 neurons.