Shannonia meridionalis, Zuska, 1969

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

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