innervates fascicle adult optic lobe-calycal tract adult optic lobe-calycal tract 4 2019-05-29T11:28:35Z FBbt:00048340 OLCT4 VFB:FBbt_00048340 fly_anatomy.ontology A tract of the adult connecting the optic lobe to the mushroom body ventral accessory calyx (Yagi et al., 2016). adult mushroom body ventral accessory calyx