Pityocera (Pseudelaphella) gorayebi

Pityocera (Pseudelaphella) gorayebi View in CoL Limeira-de-Oliveira & Krolow sp. nov.

(figures 11A–F)

Type locality. Brazil, Bahia, Santa Rita.

Diagnosis. small to medium sized ( 8.6–11.1 mm); frons parallel sides; face, gena and parafacial pruinose, only clypeus smooth and shiny; beard white; antennal flagellum orange; first flagellomere higher than long.

Description, Holotype ♀: body length 11.1 mm (fig. 11A); wing length 10.7 mm; wing width 3.4 mm.

Head (fig. 11B): eyes without color pattern when dry, densely pilose. Occiput with yellow hair. Frons parallel, D.I. 1.0, F.I. 2.9; with yellowish brown pruinosity and brown pilosity. Subcallus glabrous, with pruinosity identical to frons. Parafacial and face with pruinosity as on the frons, sparse light-brown hair. Gena with yellowish brown pruinosity and white beard. Clypeus smooth and shiny. Antenna (fig. 11C), scape and pedicel with yellowish brown pruinosity and black hairs; flagellum orange, without pruinosity; first flagellomere taller than long, with tuft of dorsal hairs; flagellomeres 1–3 fused, 4–7 free; apical flagellomere with black hairs. Palpus with first segment tubular and smaller than half the length of the second; second segment enlarged occupying more than half of the length and hair only on external margins; central area yellow and bare; distal half narrow and completely pilose. Proboscis slender and very long, over twice the length of the head.

Thorax: scutum dark-brown with black and yellow hairs, and three very distinct longitudinal bands of yellowish brown pruinosity. Post-pronotal lobe, notopleura, post-alar callus and scutellum apex with pruinosity slightly lighter. Notopleura with tuft of black hair (dorso-lateral view). Pleura with greyish white pruinosity and predominantly white hair. Legs slender; coxae with pruinosity and pilosity similar to pleura; trochanters, tibiae, femora and tarsi dark yellow with yellow pilosity, with some sparse black hairs; tibiae with black hairs in dorsal view. Wing fumose; r5 cell closed with very long petiole; appendix of R4 absent; venation yellowish brown.

Abdomen: yellowish brown darkened on distal tergites; tergites 1–2 yellow with black hairs; tergites 3–4 darker yellow with black hairs; tergites 5–7 dark yellow with predominantly white hairs; Sternites 1–2 yellow, covered with white pruinosity and white hairs; sternite 3 onward darker, but with same pruinosity and pilosity patterns.

Terminalia ( paratype). Tergites IX and X, cercus and hypoproct as in figure (fig. 11D). Tergite IX fused, narrowed in the center. Tergite X divided into two pieces with internal lateral margins widened, creating a membranous space between the contact area of the internal lateral margins and tergite IX. Cercus with margins rounded and apex rounded; Hypoproct rounded, reaching half of the cercus length. Hypogynium + hypogynial valve (fig. 11E). Hypogynium subtriangular with lateral margins almost straight from middle to apex and middle to base, both meeting in the middle of the structure; apex with a v-shaped slit reaching the hypogynial valve. Genital fork (fig. 11F) with slender arms widely separated; anterior margin straight with slight median indentation; lateral extremities slightly acuminate; spermathecal ducts long and sclerotized; Spermatheca (fig. 11F) heavily pigmented, elongated with apex slightly narrowed.

Paratypes variations. Body length 8.6–11.0 mm; wing length 9.4–10.0 mm; wing width 3.0– 3.7 mm; I.F. 2.7–2.9; I.D. 1.0.

Male: unknown.

Distribution. Brazil (Maranhão, Tocantins, Bahia).

Type material. Holotype ♀. “[ BRAZIL] BAHIA \ Santa Rita\ E. Dente IV.[19]58” ( MZUSP). Paratypes 61 ♀. “ BAHIA \ Santa Rita\ E. Dente IV.58 ” (2♀ INPA, 2♀ MPEG, 2♀ CEUFT, 2♀ MZUSP); “ BRASIL, TO, Peixe\ V.2011, malaise\ M. A. Bragança leg. ” (♀ CEUFT); “ Brasil (MA), Carolina\ Fazenda Santa Rita\ Isca eqüina , 19–21.iv. \2004, J.T. Câmara, col.” (2♀ INPA, 2♀ CZMA); “ Brasil (MA), Mirador\ Parque Est. Mirador\ Base da Geraldina” “Armadilha Malaise\ 23.iv – 04.v.2007, F.\ Limeira-de-Oliveira.” (4♀ CZMA); “ Brasil (MA), Mirador\ Parque Est. Mirador\ Base da Geraldina” “Armadilha Suspensa\ 01–06.v.2007, F.\ Limeira-de-Oliveira.” (4♀ CZMA); “ Brasil (MA), Mirador\ Parque Est. Mirador\ Base da Geraldina” “Armadilha Malaise\ 06–20.v.2007, F.\ Limeira-de-Oliveira.” (8♀ CZMA); “ Brasil (MA), Mirador\ Parque Est. Mirador\ Base da Geraldina” “Armadilha Malaise\ 20.v–02.vi.2007, F.\ Limeira-de-Oliveira.” (6♀ CZMA); “ Brasil (MA), Mirador\ Parque Est. Mirador\ Base da Geraldina” “Isca Equina \ 19–23.iv.2007, F.\ Limeira-de-Oliveira.” (♀ CZMA); “ Brasil (MA), Mirador\ Parque Est. Mirador\ Base da Geraldina\ 06°37’25”S /45°52’08”\Armadilha Malaise\ 10–16.v.2013, F. Limei\ra-de- Oliveira; L. L. M.\ Santos & L. S. Santos.” (25♀ CZMA).

Etymology. the specific epithet honor the dipterist Dr. Inocêncio de Sousa Gorayeb, specialist in Tabanidae .

Discussion. easily differentiated from other species by the first flagellomere clearly wider than long.