coeloconic sensillum of antennal segment 3 [FBbt_00004177]

coeloconic sensillum of antennal segment 3

ID: FBbt_00004177

Olfactory coeloconic sensillum that is part of antennal segment 3 (Shanbhag et al., 1999). It has a double cuticular wall surrounding a central lumen that houses olfactory receptor neuron dendrites (Shanbhag et al., 1999). Its base is smooth, but distally it its is composed of cuticular fingers, between which run longitudinal grooves (Shanbhag et al., 1999). In the distal part of the sensillum, the central lumen is connected to the longitudinal grooves by radial spoke channels (Shanbhag et al., 1999).

Not truly 'coeloconic' as these are not located in pits (Shanbhag et al., 1999).