head segment
   |__gnathal segment
       |__maxillary segment  610 rec.
           |__adult maxillary segment 327 rec.
           |   |__adult maxillary neuromere(+)
           |   |__adult maxillary structure
           |   |__labrum(+) 44 rec.
           |   |__lacinia 3 rec.
           |   |__maxillary palp(+) 286 rec.
           |__apodeme of rostrum-haustellum joint 7 rec.
           |   |__anterior arm of apodeme of rostrum-haustellum joint
           |   |__dorsal arm of apodeme of rostrum-haustellum joint
           |   |__ventroposterior arm of apodeme of rostrum-haustellum joint 4 rec.
           |__embryonic maxillary segment 171 rec.
           |   |__embryonic maxillary neuromere 6 rec.
           |   |__embryonic maxillary sensory complex 62 rec.
           |__larval maxillary segment 114 rec.
           |   |__cirri 43 rec.
           |   |__larval maxillary neuromere(+)
           |   |__larval maxillary segment sense organ(+) 79 rec.
           |__maxillary neuroblast MNB
           |__maxillary neuroblast NB1-1
           |__maxillary neuroblast NB1-2
           |__maxillary neuroblast NB2-1
           |__maxillary neuroblast NB2-2
           |__maxillary neuroblast NB2-5
           |__maxillary neuroblast NB3-1
           |__maxillary neuroblast NB3-2
           |__maxillary neuroblast NB3-3
           |__maxillary neuroblast NB3-4
           |__maxillary neuroblast NB3-5
           |__maxillary neuroblast NB4-1
           |__maxillary neuroblast NB4-2
           |__maxillary neuroblast NB4-3
           |__maxillary neuroblast NB4-4
           |__maxillary neuroblast NB5-1
           |__maxillary neuroblast NB5-2
           |__maxillary neuroblast NB5-3
           |__maxillary neuroblast NB5-6
           |__maxillary neuroblast NB6-1
           |__maxillary neuroblast NB6-2
           |__maxillary neuroblast NB6-4
           |__maxillary neuroblast NB7-1
           |__maxillary neuroblast NB7-2
           |__maxillary neuroblast NB7-3
           |__maxillary neuroblast NB7-4
           |__maxillary segment anterior compartment
           |__maxillary segment posterior compartment