part of abdominal segment 1 larval abdominal segment 1 abdominal dorsal trichoid sensillum dh2 abdominal 1 dorsal trichoid sensillum dh2 2010-02-17T03:52:51Z fly_anatomy.ontology abdominal 1 dorsal sensillum trichodeum dh2 FBbt:00100034 VFB:FBbt_00100034 Any abdominal dorsal trichoid sensillum dh2 (FBbt:00100033) that is part of some abdominal segment 1 (FBbt:00000022).