head segment
   |__procephalic segment
       |__antennal segment  7467 rec.
           |__adult antennal segment 6769 rec.
           |   |__adult deutocerebrum(+) 4990 rec.
           |   |__antenna(+) 1890 rec.
           |__antennal sense organ 534 rec.
           |   |__adult antennal sense organ(+) 361 rec.
           |   |__embryonic antennal sense organ 94 rec.
           |   |__larval antennal segment sense organ(+) 26 rec.
           |__deutocerebrum 5085 rec.
           |   |__adult deutocerebrum(+) 4990 rec.
           |   |__antennal lobe commissure(+) 25 rec.
           |   |__deutocerebral neuroblast(+) 40 rec.
           |   |__embryonic deutocerebrum(+) 24 rec.
           |   |__larval deutocerebrum(+) 51 rec.
           |__embryonic antennal segment 165 rec.
           |   |__embryonic antennal sense organ 94 rec.
           |   |__embryonic deutocerebrum(+) 24 rec.
           |   |__eye-antennal disc primordium 13 rec.
           |__embryonic/larval cibarium 1 rec.
           |__larval antennal segment 573 rec.
               |__antennal disc(+) 504 rec.
               |__dorsal organ ganglion 4 rec.
               |__larval antennal segment sense organ(+) 26 rec.
               |__larval deutocerebrum(+) 51 rec.
               |__terminal organ ganglion 5 rec.
               |__ventral organ ganglion 3 rec.