incipiens Freidberg, Knutson & Abercrombie, 1991: 19,

figs. 46–51, 94 (♂ sternites, distiphallus, posterior surstyli; ♀ synsternum). Under “Etymology,” Freidberg et al. 1991: 19 stated, “The specific epithet, incipiens, was a manuscript name given by George Steyskal, but nobody, including him, can say why.”

HT: ♂ Argentina, Buenos Aires, 28 km SW Buenos Aires, 15–16.IV.1967, J. Abercrombie [plus label: J. Abercrombie field trip #6729]. USNM, unnumbered

AT: ♀ Brazil, Guanabara, Instituto Oswaldo Cruz, 6.VI.1967, Berg & Souza-Lopes [plus label: J. Abercrombie Biol. Note #67118]

PT:1♂ Argentina, USNM; 14♂ 14♀ Brazil, MZUSP, USNM. Collected 6.IV–IX, 1964 and 1967 by Abercrombie, Berg, Papavero, and Souza-Lopes

DIST: ARGENTINA (Buenos Aires). BRAZIL ( Rio de Janeiro, Rio Grande do Sul, S ã o Paulo). Maps: Freidberg et al. 1991, Ciprandi Pires et al. 2008, Ciprandi Pires & Marinoni 2010

FIGS: Marinoni & Mathis 2006 (surstylus; spermatheca)

BIOL: Abercrombie 1970, 2000. BG: 11; PG: 6

HOSTS/PREY OF LARVAE: Aplexa marmorata, Biomphalaria glabrata, Gyraulus parvus, Helisoma trivolvis, Physella gyrina, Planorbella duryi, and Stagnicola palustris

IMMATS: Freidberg et al. 1991 (E, L1–L3, P)