Neohybos Ale-Rocha & Carvalho, 2017

Ale-Rocha, Rosaly, 2017, New species of Neohybos Ale-Rocha & Carvalho (Diptera, Hybotidae, Hybotinae) from South America, Zootaxa 4358 (3), pp. 507-531 : 508

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Neohybos Ale-Rocha & Carvalho


Neohybos Ale-Rocha & Carvalho

Neohybos Αle-Rocha & Carvalho, 2003: 1. Type species: Hybos lUridUs Bezzi, 1909, by original designation.

Neohybos , Cerathybos Bezzi and Euhybus together form a derived group of hybotine genera that shares a short membranous proboscis with pseudotracheae, eyes holoptic or narrowly dichoptic on face, palpus slender and as long as proboscis, one pair of ocellar setae, Rs vein short and male terminalia asymmetrical (Ale-Rocha & Rafael 2004). Neohybos can be easily distinguished from Cerathybos by the ovate flagellum (strongly dorsally convex in Cerathybos [Ale-Rocha 2002a, fig. 1]) and outstanding setae on the fore and mid tarsomeres (absent in Cerathybos ); from Euhybus in having acr and dc series sparse, uniserial on the disc (scutum densely setose with numerous acr and dc series on the disc in Euhybus ), costal cell slender and anal lobe poorly developed with margin gently round (wing usually with broad costal cell and anal lobe with protruded margin, subtriangular in Euhybus [Ale-Rocha 2002b, figs 65–74; Ale-Rocha 2004, figs 62–69]), and from Euhybus and Cerathybos by the hypandrial arms forming a narrow sclerotized dorsal bridge around the base of the phallus (forming an wide membranous dorsal chamber around phallus and postgonites in Euhybus [Ale-Rocha 2004, figs 5–7] and Cerathybos [Ale-Rocha 2002a, fig. 7]), and postgonites ventrally united, belt-like (postgonites separate in Euhybus [Ale-Rocha 2004, fig. 14] and Cerathybos [Ale-Rocha 2002a), eighth abdominal segment not rotated and aligned with previous segments (eight abdominal segment rotated 45° to the right in Euhybus and Cerathybos ).