sensory neuron
 |__chemosensory neuron______
gustatory system             |
 |__gustatory system neuron__|
chemosensory system neuron   |
 |__chemosensory neuron______|
 |__gustatory system neuron__|
                             gustatory receptor neuron  364 rec.
                              |__adult gustatory receptor neuron 174 rec.
                              |   |__Gr43a neuron of adult hypocerebral ganglion 1 rec.
                              |   |__gustatory receptor neuron of the adult pharynx(+) 35 rec.
                              |   |__gustatory receptor neuron of the labellum(+) 60 rec.
                              |   |__gustatory receptor neuron of the wing(+) 5 rec.
                              |   |__leg taste bristle chemosensory neuron(+) 96 rec.
                              |   |__sugar-sensing neuron of the adult brain 3 rec.
                              |__embryonic/larval gustatory receptor neuron 112 rec.
                              |   |__gustatory receptor neuron of terminal organ(+) 51 rec.
                              |   |__gustatory receptor neuron of the dorsal organ(+) 12 rec.
                              |   |__gustatory receptor neuron of the epiphysis(+) 50 rec.
                              |   |__gustatory receptor neuron of the hypophysis(+) 15 rec.
                              |   |__gustatory receptor neuron of the ventral organ 3 rec.
                              |   |__larval abdominal ventral multidendritic neuron v'td1(+) 14 rec.
                              |   |__larval abdominal ventral multidendritic neuron v'td2(+) 18 rec.
                              |   |__larval pharyngeal gustatory receptor neuron(+) 20 rec.
                              |__high salt/bitter-sensing neuron 78 rec.
                              |   |__bitter-sensing neuron(+) 30 rec.
                              |   |__Gr2a neuron of adult labral sensillum 7
                              |   |__gustatory receptor neuron C6 of the terminal organ distal group
                              |   |__high salt-sensing neuron of labellar taste bristle(+) 6 rec.
                              |__salt-sensing neuron 12 rec.
                              |   |__Gr2a neuron of adult labral sensillum 7
                              |   |__gustatory receptor neuron C2 of the terminal organ distal group 3 rec.
                              |   |__gustatory receptor neuron C6 of the terminal organ distal group
                              |   |__gustatory receptor neuron C7 of the terminal organ distal group
                              |   |__high salt-sensing neuron of labellar taste bristle(+) 6 rec.
                              |   |__low salt-sensing neuron of labellar taste bristle(+) 3 rec.
                              |   |__sour-sensing neuron of mesothoracic leg tarsal taste bristle 5v
                              |   |__sour-sensing neuron of metathoracic leg tarsal taste bristle 5v
                              |   |__sour-sensing neuron of prothoracic leg tarsal taste bristle 5v
                              |__sour-sensing neuron
                              |   |__gustatory receptor neuron C6 of the terminal organ distal group
                              |   |__gustatory receptor neuron C7 of the terminal organ distal group
                              |   |__sour-sensing neuron of the leg(+)
                              |__sugar-sensing neuron 48 rec.
                              |   |__Gr43a neuron of adult hypocerebral ganglion 1 rec.
                              |   |__gustatory receptor neuron C2 of the terminal organ distal group 3 rec.
                              |   |__gustatory receptor neuron C6 of the terminal organ distal group
                              |   |__gustatory receptor neuron C7 of the terminal organ distal group
                              |   |__sugar-sensing neuron of taste bristle(+) 40 rec.
                              |   |__sugar-sensing neuron of the adult brain 3 rec.
                              |   |__sweet taste neuron of adult labral sensillum 7(+) 1 rec.
                              |__umami-sensing neuron 3 rec.
                              |   |__gustatory receptor neuron C2 of the terminal organ distal group 3 rec.
                              |   |__gustatory receptor neuron C7 of the terminal organ distal group
                              |__water-sensing neuron 8 rec.
                                  |__water-sensing neuron of labellar taste bristle 8 rec.