part of develops from scutellar bristle fly_anatomy.ontology VFB:FBbt_00004312 A macrochaeta of the scutellum. Each scutellum bears two pairs of these, located close to the lateroposterior margin of the scutellum, with one pair being anterior to the other. FBbt:00004312 scutellar seta https://www.ento.csiro.au/biology/drosophila/melanogaster.html?scutellar%20setae scutellum macrochaeta scutellar bristle sensory mother cell adult thoracic mechanosensory chaeta bristle of mesothoracic tergum