Limnophora patagonica Malloch, 1934 (Figs. 35, 36) Diagnosis: Thorax brown with grey pruinosity, with two dorsal (interrupted in the middle on males) and two lateral grey pruinose vittae; prestomal teeth developed; legs fully dark brown; halter yellow; abdomen with grey pruinosity on all tergites dorsally and laterally. Prealar seta absent; dorsocentral setae 2+4; katepisternal setae 1+2, lower seta shorter than the upper posterior seta; prosternum setulose; wing with cilia on both sides of base of Rs sector; hind tibia with one median anterodorsal seta and one submedian anteroventral seta; sternite 1 bare. Body length: 4.4–5.6 mm. Wing length: 3.6–4.8 mm. Material examined: CHILE: Juan Fernández, Robinson Crusoe Island 9 males and 6 females, Bahia Cumberland, 1–11.i.1993, Marshall & Gonzalez; 2 males and 3 females, Mirador Selkirk, 24–28.i.1992 and 1–11.i.1993, S. A. Marshall; 3 males and 4 females, Plazoleta - El Yunque, 23-29.i.1992 and 1–9.i.1993, S. A. Marshall; 2 males, Puerto Ingles, 5.i.1993, S. A. Marshall. References: Malloch (1934); Lopes & Couri (1987); Couri & de Carvalho (2002). Distribution: Argentina, Uruguay and Chile (including Juan Fernández Archipelago) (Löwenberg-Neto & de Carvalho 2013). Biology: Most species live associated with aquatic environment; larvae are aquatic and both larvae and adults are predators (Werner & Pont 2006). Comments: Hennig (1955) identified 12 males and 5 females specimens only at Robinson Crusoe Island.

Published as part of Gomes, Lucas R. P., Couri, Márcia S. & De Carvalho, Claudio J. B., 2018, Anthomyiidae, Fanniidae and Muscidae (Diptera) from the Juan Fernández Archipelago (Chile): 60 years after Willi Hennig's contributions, pp. 373-389 in Zootaxa 4402 (2) on pages 382-383, DOI: 10.11646/zootaxa.4402.2.9, http://zenodo.org/record/1209025