Genus Parydra Stenhammar

Parydra Stenhammar, 1844: 144 (as “Sectio 3” of Ephydra). Type species, Ephydra aquila Fallén, 1813, subs. des., Coquillett, 1910: 585. Refs.: Clausen & Cook, 1971: 20 –100 (rev. of Nearctic species); Krivosheina, 1989: 209 –219 (rev. of Russian species); Mathis & Marinoni, 2011: 505 –512 (review, Brazilian species).