larval sense organ
 |__larval sensillum___________________
 |__embryonic/larval head sense organ__|
sensillum                              |
 |__head sensillum_____________________|
 |__larval sensillum___________________|
                                       embryonic/larval head sensillum  244 rec.
                                        |__Bolwig organ 221 rec.
                                        |__buccal tree
                                        |__campaniform sensillum of larval intercalary segment
                                        |__distal group terminal organ sensillum 3 rec.
                                        |   |__campaniform sensillum of distal group(+) 2 rec.
                                        |   |__knob sensillum of distal group(+)
                                        |   |__pit sensillum of distal group(+) 1 rec.
                                        |   |__spot sensillum S1
                                        |__dorsal organ base sensillum
                                        |__dorsal organ dome sensillum
                                        |__dorsal pharyngeal sensillum 4 rec.
                                        |   |__dorsal group sensillum D1
                                        |   |__dorsal group sensillum D2
                                        |   |__dorsal group sensillum D3
                                        |   |__dorsal group sensillum D4
                                        |   |__dorsal group sensillum D5
                                        |   |__dorsal group sensillum D6
                                        |__dorsal pit
                                        |__dorso-lateral group terminal organ sensillum 9 rec.
                                        |   |__dorsolateral papilla 7 rec.
                                        |   |__dorsomedial papilla 6 rec.
                                        |   |__spot sensillum of dorso-lateral group
                                        |__dorsopharyngeal organ 6 rec.
                                        |__embryonic/larval labial segment sensillum 1 rec.
                                        |   |__labial organ sensillum(+)
                                        |__knob in pit sensillum
                                        |__laterohypopharyngeal organ 2 rec.
                                        |__papilla organ 4 rec.
                                        |__ventral organ sensillum
                                            |__ventral organ sensillum 1
                                            |__ventral organ sensillum 2
                                            |__ventral organ sensillum 3
                                            |__ventral organ sensillum 4
                                            |__ventral organ sensillum 5