larval sense organ
 |__embryonic/larval head sense organ__
ectodermal derivative                  |
 |__dorsal ectoderm derivative_________|
                                       larval maxillary segment sense organ  79 rec.
                                        |__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
                                        |__dorso-lateral group terminal organ sensillum 9 rec.
                                        |   |__dorsolateral papilla 7 rec.
                                        |   |__dorsomedial papilla 6 rec.
                                        |   |__spot sensillum of dorso-lateral group
                                        |__embryonic/larval maxillary chordotonal organ with two scolopidia 7 rec.
                                        |__hypomaxillary organ 1 rec.
                                        |__terminal organ 69 rec.
                                        |__ventral organ 10 rec.
                                        |__ventral organ sensillum
                                            |__ventral organ sensillum 1
                                            |__ventral organ sensillum 2
                                            |__ventral organ sensillum 3
                                            |__ventral organ sensillum 4
                                            |__ventral organ sensillum 5