Oropezella longifrons, Ale-Rocha, Rosaly & Freitas-Silva, Rafael Augusto Pinheiro De, 2014

Ale-Rocha, Rosaly & Freitas-Silva, Rafael Augusto Pinheiro De, 2014, New species of Oropezella Collin (Diptera, Hybotidae, Ocydromiinae) from Brazil and Costa Rica, with comments on the relationships among species-groups, Zootaxa 3852 (5), pp. 501-539 : 520

Oropezella longifrons sp. nov.

( Figs 59–66 , 118)

Diagnosis. Frons long, more than two-thirds length of the face; scutum brown, mesopleuron and mediotergite yellow, scutellum and postpronotal lobe pale brown; scutum entirely covered with scattered pruinescence; femora, fore and mid tibiae pale brown; hind femur pale yellow; tarsi brown; abdomen shiny brown, tergites 3–5 yellow on lateral margins.

Etymology. From the Latin “ longus ” (long), “ frons ” (forehead), in reference to the length of the frons which is almost as long as the face.

Description. Holotype male. Body: 2.7 mm. Wing: 2.7 mm. Head: antenna brown located slightly above middle of head; scape as long as pedicel; postpedicel lanceolate, 2.5 times longer than wide, as long as the scape and pedicel combined; stylus apical, bare and long, about 3.5 times length of antenna. Ocellar triangle protuberant; 1 elongate pair of ocellar setae, proclinate at 45º. Holoptic, frons long, more than two-thirds length of face. Proboscis yellow; palpus brown bearing 1 long apical and 1 shorter lateral bristle. Postcranium dark brown with brown to gray thin pruinescence; postoculars elongate, scattered, upper setae longest. Thorax: sub-shiny, entirely covered with pale brown thin and scattered pruinescence; scutum brown, scutellum and postpronotal lobe pale brown, mesopleuron and mediotergite yellow. Bristles thin, short and scattered; acr and dc uniserial. Differentiated bristles: 1 npl short and discreet; posterior dc not distinctly developed; 1 pal short; 1 long and strong apical sctl and 1 lateral bristle thin and about one-third length of apical. Wing (Fig. 118): sub-hyaline with golden iridescence; R1 meeting C at middle of wing; cell dm emitting 2 veins; cell cu p present. Legs: coxae and trochanters pale yellow; femora, fore and mid tibiae pale brown; hind femur pale yellow; hind tibia pale brown; tarsi brown. Bristles short and weak: mid tibia with 1A at middle and 1D near base; some V elongate bristles on hind femur. Abdomen: tergites brown except tergites 3–5 yellow on lateral margins; sternites pale brown; shiny with pruinescence only on tergite 8. Bristles brown, short, scattered and thin. Terminalia: hypandrium about 1.5 times longer than wide, apex concave ( Fig. 59 ); epandrium not deeply cleft dorsally, epandrial lamellae broadly fused basally ( Fig. 60 ); left epandrial lamella shorter than right with elongate dorsoapical process, robust in dorsal view ( Fig. 60 ), slender in lateral view ( Fig. 62 ); right surstylus short, spoon-like about half length of left ( Figs. 63 ), left surstylus long and slender, curved inwards at mid-length ( Fig. 62 ); articulated distal portion of phallus waved, simple, elongate, about half length of basal portion, basal process slender, about half length of articulated distal portion of phallus ( Fig. 61 ). Female. Similar to male. Ovipositor ( Figs 64–66 ): eighth segment somewhat short; tergite 8 deeply cleft medially on distal margin; sternite 8 narrow, three times longer than wide.

Type material. HOLOTYPE ♂, labelled: BRASIL, Amazonas, Manaus / Res[erva] Km 41, PDBFF [Projeto Dinâmica Biológica de Fragmentos Florestais] / 12–13.v.2004 / Sub-bosque, R. Querino ( INPA) (in good condition except by apical pair of scutellar bristles lost; not dissected). Paratypes: BRAZIL, Amazonas: 1♀, Manaus, PDBFF /WWF, Proj[eto] Bert Klein, 60 km N. Manaus, Fazenda Esteio, ZF-3, KM-23, 25.vi.1985, Res. 1208, RLO; 1♀, idem, viii.1985, Malaise, Reserva 1208; 1♂, idem, 15.i.1986, Res. 1301, RLS1; 1♀, idem, 16.i.1986, Res. 1113, RCE; 1♂, idem, 12.iii.1986, Res. 1301, RLN1; 1♀, idem, 15.v.1986, Res. 1113; 1♀, idem, vii.1986, res. 1301; 1♀, Reserva Ducke, i.1996, CMT 5; 1♂, Res. km 41, PDBFF, 02–04.iii.2005, Trilha LL-i—SB, R. Querino (all housed at INPA).

Additional material examined. BRASIL, Amazonas: 1♂, Manaus, PDBFF /WWF, Proj. Bert Klein, 60 km N. Manaus, Fazenda Esteio, ZF-3, KM-23, 15.vi.1985, Reserva 1208 RLO; 1♀, idem, iii.1986, reserva 1208; 1♂, idem, 12.iii.1986, Reserva 1301 RLN1; 1♂, idem, 29.i.1986, Reserva 1301, RLN1; 1♀, idem, 30.iv.1986, Res. 1301, RLS2 (all housed at INPA).

Distribution. Brazil (Amazonas).

Figures

FIGURES 59 – 66. Oropezella longifrons. Hypopygium: 59, ventral aspect; 60, dorsal aspect; 61, phallus, lateral aspect (hypandrium spotted); 62, 63, left and right epandrial lamella, surstylus and cercus, respectively, lateral aspect. Female terminalia: 64, dorsal aspect; 65, ventral aspect; 66, lateral aspect. Scale bar: hypopygium = 0.1 mm; female terminalia = 0.3 mm.