metathoracic femoral chordotonal organ metathoracic femoral chordotonal organ 2 fly_anatomy.ontology One of the small chordotonal organ of the adult metathoracic femur. It is located in the center of the femur and has around 14 scolopidia. Distally, the scolopidia are more scattered than the metathoracic femoral chordotonal organ 1, with a majority of them connected to the femoral muscle membrane. VFB:FBbt_00004440 FBbt:00004440