Genus Osca Walker, 1850: 10

Type-species: Pangonia depressa Macquart, 1838a (subs. des., Coquillett, 1910: 581) = Osca lata (Guérin-Méneville, 1835) .

Diatomineura Rondani, 1863: 84 . Type-species: Pangonia depressa Macquart, 1838a (subs. des., Coquillett, 1910: 532) = Osca lata (Guérin-Ménéville, 1835) .

Bombomimetes Enderlein, 1922: 340 (in key). Type-species: Pangonia rufoaurea Phillippi, 1865: 709 (orig. des.) = Osca rufa (Macquart, 1838a) .

Calliosca Enderlein, 1925: 405 . Type-species: Calliosca schoenemanni Enderlein, 1925: 405 (orig. des.) = Osca varia (Walker, 1848) .

References. Brèthes, 1914: 59 (com.); Kröber, 1930b: 157 (key); Borgmeier, 1933: 298 (tax.); Fraga, 1938b: 67 (key to species); Fraga, 1938c: 150 (in key); Stuardo, 1946: 68 (cat.); Coscarón & Wilkerson, 1985: 279–281 (key to species, Scaptia); Coscarón & Papavero, 1993: 18 (in key, Scaptia); Fairchild & Burger, 1994: 34 (cat., Scaptia); González et al., 1997: 154 (dist., Scaptia); Coscarón & Papavero, 2009a: 9 (in key, Scaptia); Coscarón & Papavero, 2009b: 46 (cat., Scaptia); Lessard, 2014: 211, 219 (rev., reval.).