References
C. peruana (Hennig)
Cerantichir Enderlein
Diagnosis
Occiput shiny elongate and as long as high. Postgena shiny and relatively narrow and either bare or with a few several black setulae. Pedicel laterally flattened, scape less than half of pedicel length; arista densely white pilose. Orbital plate shiny wide. Vibrissa absent. Ocellar tubercle large, raised and blackish velvet. Thorax elongate, with mesoscutum and antepronotal ring distinctly anterior to postpronotal carina. Anterior margin of prosternum wide and truncated. One pair of dorsocentral setae. Mesoscutum with one pair of apical setae on anterior margin. Wing partially covered by microtrichia; basally has small bare areas (extending beyond level of r-m in cells r1, r2+3 and r4+5). Scutellum with one pair of stout apical setae and two weaker subapical setae. Epandrium extends forward to level of anterior margin (at most) of tergite 4.
Species accounts
1. Cerantichir enderleini Hennig, 1922
2. Cerantichir peruana (Hennig, 1937)
Key to species of Cerantichir
1 Antennal base dorsally longer than wide; inner margins separated by a small space (Fig. 1, white arrow). Inner process of pedicel elongate, finger-like, reaching the proximal half of flagellomere (Fig. 2). Apex of flagellomere widely rounded. Occiput with black setae towards posterior head margin (Fig. 1, black arrow) ... C. enderleini
1' Antennal base rounded and inflated; inner margins together, with no space between them (Fig. 3, white arrow). Inner process of pedicel obtuse with widely rounded apex and extending over a very short proximal portion of the flagellomere (Fig. 4). Apex of flagellomere truncate. Occiput without black setae towards posterior head margin (Fig. 3, black arrow) ... C. peruana
Reference
Sepúlveda, T. A., Pereira-Colavite, A. & de Carvalho, C. J. B. 2013. Revision of the neotropical genus Cerantichir (Diptera: Neriidae) with new records and a key to species. Revista Colombiana de Entomología 39 (1): 125–131. Available here.