Neosilba piracea, Galeano-Olaya & Canal, 2012

Galeano-Olaya, Pedro E. & Canal, Nelson A., 2012, New Species Of Neosilba Mcalpine (Diptera: Lonchaeidae) And New Records From Colombia, Papéis Avulsos de Zoologia 52 (31), pp. 361-385 : 383-385

publication ID	https://doi.org/ 10.1590/S0031-10492012021100001
persistent identifier	https://treatment.plazi.org/id/03918799-F73B-2654-A00D-01A61422FF5C
treatment provided by	Felipe
scientific name	Neosilba piracea
status	sp. nov.

Treatment

Neosilba piracea View in CoL sp. nov.

( Figs. 15 View FIGURE 15 A-E)

Type data: Holotype ♂. COLOMBIA, Tolima, Ibagué. 04°24’302”N, 75°11’766”O, 1107 m, 26.I.2005, R. Castañeda & A. Osorio.Trampa McPhail ( MEN-UT) . Paratype 1 ♂, Ibagué. 04°27’215”N, 75°13’271”O, 1259 m, 03.I.2006, R . Castañeda & A. Osorio. In McPhail traps ( MEN-UT) .

Etymology: The name of the species is an adjective that means pear-shape (from Latin pirum = pear + suffix atus = similar) in reference to the shape of the paramere.

Diagnosis: N. piracea (together N. batesi , N. bella , N. bifida , N. certa , N. delvechioi , N. distospinosa , N. glaberrima , N. inesperata , N. oaxacana , and N. pradoi ) belongs to a group of species with epandrium two or less times as long as wide and has a strong slimming of the aedeagus at the base of the filament, stronger carina at the junction of C and filament (i.e., Section C of the aedeagus strongly wider than the filament). ( Fig. 15C View FIGURE 15 ) N. piracea could be recognized by the epandrium 2 times as long as wide ( Fig. 15B View FIGURE 15 ), surstylus with 5 to 7 prensisetae at each side ( Fig. 15D View FIGURE 15 ), section C with an apical dorsal carina and with contiguous spiculae ( Fig. 15C View FIGURE 15 ). N. distospinosa differs by having spiculae on the ventro-distal area of the filament. N. batesi , N. bifida , N. delvechioi , N. glaberrima , N. inesperata and N. pseudobifida by the spine-like lobe or two projected lobes arising on convex surface of the C-shape. N. certa and N. bella differ by aedeagus with a gradual slimming (cone-like) at the base of the filament, low medial carina in the junction C-filament of the aedeagus and 7 ( N. certa ) or 10 ( N. bifida ) prensisetae located parallel to the posterior margin at each side of the surstylus; N. certa differs by a paramere shoulder-like bump ( Figs. 13A, D View FIGURE 13 ) and triangular-shape in N. bella . N. oaxacana differs by paramere slender tongue-like and the filament sinuous at the junction with the C in N. oaxacana ( Fig. 14D View FIGURE 14 ). N. pradoi differs by the paramere lobose, 7 prensisetae, and by the junction of the filament and C-shape of the aedeagus without any carina.

Description: Body length 4.74-4.96 mm long, 1.62-1.85 mm wide at pteropleura. Head: 1.25-1.92 mm wide, 1.18-1.48 mm high, 0.66-0.74 mm long; front 0.38-0.51 mm wide at the lunule, 0.41-0.52 mm wide lower ocelar triangle; frontal lunule with 10 setulae; postpedicel 0.7-0.89 mm long, 0.19 mm wide in lateral view; arista 0.70-0.89 mm long, setulae 0.038 mm long; subvibrissal area with 4 setulae. Thorax: 1.62-1.85 mm wide, 1.70-2.14 mm long; anepisternum with 4 anterodorsal and 6 posterior bristles; scutellum with 5 setulae between lateral bristles; fringes of calypteres with 8 brown setae; Wing 4.55-5.0 mm long, 1.85-1.92 mm wide, hyaline. Abdomen: 1.85-2.59 mm long. Male Terminalia: 1.25-1.28 mm long, 0.28-0.33 mm wide; epandrium 0.48-0.52 mm long, 0.32-0.38 mm wide (1.36 1.52 times as long as wide); surstylus with 7 prensisetae at each side arranged at right angle, 5 of them transversely disposed and two longitudinally; paramere pear-shaped in ventral view; cerci 0.192 -0.205 mm long, 0.130 mm wide; aedeagus long and slender, base fully C-shaped in lateral view, slightly inflated, suddenly constricted at the junction with the filament, at this point with a dorsal carina and strongly spiculated; filament fine, smooth, 0.92-0.94 mm long, 0.012 mm wide.

Host: unknow.

New records in Colombia