part of capable of adult head bristle adult labellum sensillum labellar taste bristle VFB:FBbt_00004162 Gustatory bristle on the outer surface of the labellum (Shanbhag et al., 2002). It is innervated by either 2 or 4 chemosensory neurons and one mechanosensory neuron (Shanbhag et al., 2002). There are 31 of these on each side, which can be divided into three subtypes based on length and number of chemosensory neurons, but there is some variability in the number of each subtype (Shanbhag et al., 2002). FBbt:00004162 lateral sensillum of labellum fly_anatomy.ontology labellum chaeta taste bristle mechanosensory chaeta detection of chemical stimulus involved in sensory perception of taste