cell cluster organ empty antennal sensillum 2021-11-16T11:29:34Z Biological significance of these is unclear, but speculated to be due to neuronal turnover (Gonzales et al., 2021). Hair structure of the antenna that resembles a sensillum, but lacks sensory neurons (Gonzales et al., 2021). Auxiliary cells (tormogen, trichogen, thecogen) may or may not still be present (Gonzales et al., 2021). FBbt:00052001 fly_anatomy.ontology