sensory neuron
 |__adult sensory neuron__
adult neuron              |
 |__adult sensory neuron__|
 |__adult PNS neuron______|
PNS neuron                |
 |__adult PNS neuron______|
                          adult labial sensory neuron  104 rec.
                           |__adult diatom subesophageal neuron 12 rec.
                           |__gustatory receptor neuron of the labellum 80 rec.
                           |   |__labellar taste bristle chemosensory neuron(+) 43 rec.
                           |   |__labellar taste peg chemosensory neuron(+)
                           |__labellar taste bristle sensory neuron 47 rec.
                           |   |__adult pheromone-sensing neuron of labellum
                           |   |__labellar taste bristle chemosensory neuron(+) 43 rec.
                           |   |__labellar taste bristle mechanosensory neuron 2 rec.
                           |   |__type I sensory neuron of coiled fibers
                           |   |__type II sensory neuron of shrubby fibers
                           |   |__type IV sensory neuron of dorsal ipsilateral fibers
                           |   |__type V sensory neuron of ventral contralateral fibers
                           |   |__type VI sensory neuron of dorsal contralateral fibers
                           |   |__type VII sensory neuron of central fibers
                           |__mechanosensory neuron of labellum 13 rec.
                           |   |__labellar mechanosensory bristle mechanosensory neuron
                           |   |__labellar multidendritic neuron 10 rec.
                           |   |__labellar taste bristle mechanosensory neuron 2 rec.
                           |   |__labellar taste peg mechanosensory neuron 2 rec.
                           |__type III sensory neuron of ventral ipsilateral fibers