vibrissal bristle macrochaeta large anterior vibrissal bristle 2024-02-06T09:55:54Z vibrissal bristle FBbt:00052782 fly_anatomy.ontology Large vibrissal bristle with a relatively anterior position within the vibrissae, directly below the antenna. There are usually 2-4 of these on each side. VFB:FBbt_00052782 vibrissa vibrissae (large) Especially in other species, these are sometimes specifically referred to as vibrissae, though melanogaster papers tend to refer to the full line of gena bristles as vibrissae.