intermediate sensillum of antennal segment 3 antennal intermediate sensillum ai2 fly_anatomy.ontology VFB:FBbt_00067032 Olfactory intermediate sensillum of antennal segment 3 that is innervated by olfactory receptor neuron Or83c and olfactory receptor neuron Or23a (Grabe et al., 2016). There are more of these sensilla in males than females (Grabe et al, 2016). I-2 sensillum antennal intermediate sensillum I2 FBbt:00067032 antennal trichoid sensillum at2 Reclassified from trichoid to intermediate by fluorescence-guided single sensillum recording (FG-SSR) (Lin and Potter, 2015; https://orcid.org/0000-0002-1373-1705).