meridionalis Zuska, 1969 in Kaczynski et al. 1969: 577,

fig. 5 (♂ terminalia, ♂ genitalia)

HT: ♂ Chile, Santiago Pr., 4 km w. of Baños Morales. 4.III.1967, C.O. Berg & J. Abercrombie. CUIC, No. 4473

PT: 96♂ 43♀ Twenty-seven localities in the states as below. All records 28.IX–14.III except 2♂ 2♀ 1–3.VII at Santiago, Chile. None from months IV–VI or VIII.

DIST: ARGENTINA (Chubut; Río Negro; Santa Cruz). CHILE (Atacama; Aysén; Biobío; Coquimbo; Los Lagos; Metropolitana de Santiago; Valparaíso: Islas Juan Fernández). Map: Kaczynski et al. 1969

Note: This (1♂, USNM) is the only sciomyzid known from Islas Juan Fernández, more than 600 km west of Chile.

FIGS: Kaczynski et al. 1969 (♂ terminalia, ♂ genitalia, immature stages); Marinoni & Mathis 2000 (antenna), Knutson & Vala 2011 (wing), this paper (habitus, anterolateral head)

BIOL: Kaczynski et al. 1969. BG: 2; PG: 1 and 6

HOSTS/PREY OF LARVAE: During laboratory rearings in New York, U.S.A., larvae killed and developed on six species of North American freshwater pulmonate snails of five genera ( Gyraulus deflectus, G. parvus, Physella gyrina, Planorbella trivolvis, Pseudosuccinea columella, and Stagnicola palustris) plus the South American freshwater pulmonate Biomphalaria glabrata . They did not feed on eggs of Physa sp. (but killed and ate adult Physa sp.), but they successfully attacked Campeloma decisum, the opercula or shells of which had been broken (Kaczynski et al. 1969).

IMMATS: Kaczynski et al. 1969 (E, L1–L3, P)

MOL_DAT: Y