Cepa simonettii Barahona-Segovia sp. nov.

Figs 1 –4

Holotype. Female, in excellent condition, found in the Ernesto Krahmer’s collection from UACH and finally deposited in the MNHNCL; with the following labels: “Santo Domingo, Valdivia / 22.ix.1987 / Leg. E. Krahmer ”; “ Holotypus / Cepa simonettii / spec. nov. ♀ / det. Barahona-Segovia 2018” [red].

Type locality. Chile: Valdivia Province, Santo Domingo River, - 39.903358°S, - 73.177680°W, 47 m asl .

Diagnosis. Dark-bluish metallic species. Lunule orange; without frontal protuberance; frons somewhat swollen. Arista and eye bare. Hyaline wing except for the brown-pigmented pterostigma; wing entirely microtrichose. Crossvein r-m located slightly beyond the end of subcostal vein.

Description. Length: 6.8 mm; Wing: 6.6 mm. FEMALE. Head: dark-blue, shiny, with fine punctuation and black pilosity; face concave, without frontal protuberance. Gena black with short and scarce white pilosity; lunule dark orange and bare (Fig. 1). The space between the eyes (i.e. frons width) is as long as the antenna length. Ocellar triangle in the vertex with pale orange ocelli, occupying approximately the medial 1/3 of vertex and scarcely protuberant (Fig. 2); occiput reduced laterally with short and black pile. Bare reddish eye. Scape, pedicel and basoflagellomere black. Scape and pedicel in a 1:1 ratio. Basoflagellomere five times longer than the scape and pedicel together. Arista black and bare. Thorax: Mesonotum dark-blue, shiny with short black pilosity (Figs. 2, 3). Postpronotum with sparse pilosity. Anterior spiracle with white pilosity. Anterior anepisternum flattened; posterior anepisternum convex with large and dark pilosity dorsally (Fig. 3). Anepimeron with sparse and continuous pilosity. Katepisternum with short and black pilosity (Fig. 3). Metasternum with long pilosity. Scutellum with apical marginal sulcus and black erected pilosity (Fig. 3). Legs: Coxae, trochanters, and femora dark blue to brown; tibiae, tarsi and claws dark brown. The anterior femora with short black pile; middle and posterior femora with black pile longer than those on the anterior femora. Wing (Fig. 4): entirely microtrichose, hyaline, except pterostigma brown pigmented in color. Cell r 4+5 blunt apically. Crossvein r-m placed in the basal third of cell dm, slightly beyond (more apical) the end of the vein sc. Dorsal and ventral calypters pale; margin with large pale pilosity. Halter entirely black. Abdomen: blackish brown, stocky, strongly curved ventrally at 3 rd segment; with fine black pilosity on both tergites and sternites. Fine punctuation in all abdominal tergites; 5 th tergite light brown and with fine and dense punctuation.

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