Suaymyia Thurman, 1959

The subgenera of Topomyia are defined solely by characters of the forelegs and genitalia of males (Thurman, 1959). As noted by Lee et al. (1988), the Australasian species of Topomyia cannot be placed with certainty in either subgenus Suaymyia or Topomyia based on these characters. Consequently, the following diagnosis may not apply to all species currently included in Suaymyia, which is unlikely to be a monophyletic group, as indicated by the recognition of genus Kimia for five species previously included in the subgenus (Harbach et al., 2007).

DIAGNOSIS – Foretarsomere 2 longer than foretarsomere 3 (distinction from subgenus Topomyia); ungues equal and simple in both sexes (distinction from males of subgenus Miyagiella); tergum IX narrow, with setae (unique); sternum IX with scales (distinction from subgenus Miyagiella) and usually setae; gonocoxite with conspicuous scales (distinction from subgenus Miyagiella), gonostylus attached at apex of gonocoxite (distinction from subgenus Miyagiella and some species of subgenus Topomyia), gonostylar claw present (distinction from subgenus Miyagiella); claspette without dorsal lobe (distinction from subgenus Topomyia); aedeagus elongate (distinction from subgenus Miyagiella); tergum X not evident (distinction from subgenus Miyagiella); paraproct developed as an independent slender sclerite with apical teeth (unique); cercal setae present or absent. See genus Topomyia.