Polietina orbitalis (Stein, 1904)

(Figs. 3, 35)

Type material examined. Neotype male, pinned, damaged, without abdomen, “Grajahú / Rio 1.XII.40 / Lopes & Oliveira” printed on white paper, black frame; “Smythomyia / orbitalis (Stein) [handwritten] / D. Albuquerque det. [printed]” on white paper, black frame; “♂” handwritten on white paper; “ MNRJ [printed] 5864 [handwritten]” on white paper, black frame; “Neótipo (a lamina / de ♂ é deste)” handwritten on folded paper, with blue ink (MNRJ).

Other material examined. ARGENTINA: BUENOS AIRES: 1 female, Campana, Reserva Natural Estricta Otamendi (RNEO), 26-XI-2009, Patitucci leg. (MACN). MISIONES: 2 females, Iguazú, X-1988, Mariluis leg. (MACN). TUCUMAN: 1 female, 1 male, Yerba Buena, P.Sa. San Javier, 1103 m.a.s.l, 26° 47' 10.80"S, 65° 23' 23.40"W, XI-2010, Mulieri & Patitucci leg. (MACN).

Distribution in Argentina (Fig. 35): Buenos Aires; Misiones; Tucumán (new record).

References for Argentina . Albuquerque (1956a); Patitucci et al. (2011b).

Remarks. Couri & Carvalho (1997) presented a detailed redescription of the species with illustrations of male and female terminalia. Recently, a review of the Neotropical species of this genus was made by Nihei & Carvalho (2007).

Biology. Couri & Carvalho (1997) found a female specimen with the presence of hatched eggs and considered the species as larviparous. Later, Nihei & Carvalho (2002) presented a gynandromorphism report for this species.