Oropezella undulata, 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 : 529-532

Oropezella undulata sp. nov.

( Figs 101–108 , 124)

Diagnosis. Scutum entirely covered with scattered gray pruinescence, yellow on presutural region and brown on the remaining scutum; mesopleuron brown with yellowish median longitudinal stripe; femora, tibiae and base of tarsomeres 1 and 2 yellow, tarsomeres 3–5 brown; wing smoothly brownish with golden iridescence.

Etymology. From the Latin “ unda ” (wave), in reference to the sinuous-shaped articulated distal portion of the phallus.

Description. Holotype male. Body: 2.4 mm. Wing: 2.2 mm. Head: antenna brown located above middle of head; scape as long as pedicel; postpedicel ovate short, 2.5 times longer than wide, as long as scape and pedicel combined; stylus bare, apical. Ocellar triangle not protuberant, two pairs of short ocellar setae, almost fully erect. Narrowly dichoptic; frons elongate, about two-thirds length of face, linear. Proboscis yellow; palpus brown bearing 1 elongate apical and 1 shorter lateral bristle. Postcranium black with pale pruinescence; postocular setae elongate, scattered. Thorax: entirely covered with scattered gray pruinescence; scutum yellow on presutural region and postpronotal lobe, brown on remaining scutum; mesopleuron brown with median yellowish longitudinal stripe. Bristles thin, short and scattered; acr and dc uniserial. Differentiated bristles: 1 long and strong npl; posterior dc slightly longer than anterior dc; 1 pal short; 1 long and strong apical sctl and 1 lateral thin bristle, half length of apical. Wing (Fig. 124): sub-hyaline with golden iridescence; R1 meeting C before middle of wing; cell cu p present. Legs: coxae and trochanters pale yellow, femora, tibiae and base of tarsomeres 1 and 2 yellow, tarsomeres 3–5 brown. Differentiated bristles: hind tibia with 1D at middle; hind femur with 1AV at basal third and 1AV at distal third; mid tibia with 1D near middle and 1AV at middle. Abdomen: shiny; tergites brown, with pale pruinescence on lateral margins and on segment 8; sternite pale brown. Bristles brown, thin, short and scattered. Terminalia: hypandrium about 1.5 times longer than wide, with truncate apex ( Fig. 101 ); epandrium not deeply cleft dorsally, epandrial lamellae broadly fused basally ( Fig. 102 ); left epandrial lamella slightly shorter than right, with short dorsoapical process, slender in lateral view ( Fig. 104 ) and widened distally in dorsal view ( Fig. 102 ); left surstylus distinctly curved inward ( Fig. 104 ), right surstylus broad in lateral view ( Fig. 105 ); articulated distal portion of phallus sinuous, long, more than 1.5 times length of basal portion, basal process pilose, short and robust basally ( Fig. 103 ). Female. Similar to male. Ovipositor ( Figs 106–108 ): eighth segment somewhat short; tergite 8 cleft medially on distal margin; sternite 8 broad, about 1.5 times longer than wide.

FIGURES 109–116. Wings: 109, Oropezella amazonica ; 110, Oropezella aquila ; 111, O. arcuata ; 112, O. bicolor ; 113, O. clavata ; 114, O. costaricensis ; 115, O. falcata ; 116, O. flavida . Scale bar = 1.0 mm. Abbreviations: A1—first branch of anal vein; an lb—anal lobe; bm—basal medial cell; bm-cu—basal media-cubital crossvein; br—basal radial cell; CuA1, CuA2—branches of anterior branch of cubital vein; cu p —posterior cubital cell; dm—discal medial cell; dm-cu—discal medialcubital crossvein; h—humeral crossvein; M1+2—1st+2nd medial veins; R1—anterior branch of radius; Rs—radial sector, branching into R2+3 and R4+5; r-m—radial-medial crossvein; Sc—subcosta.

FIGURES 117–124. Wings: 117, O. granulosa ; 118, O. longifrons ; 119, O. planti ; 120, O. plaumanni ; 121, O. rafaeli ; 122, O. spathula ; 123, O. uncata ; 124, O. undulata . Scale bar = 1.0 mm.

Type material. HOLOTYPE ♂, labelled: BRASIL, Amazonas, / Manaus, 60 Km N. Manaus / Fazenda Esteio / ZF-3, Km 23; 30.iv. [19]86 / Res[erva] 1301, Bert Klein ( INPA) (in good condition; left wing mounted in microslides; not dissected). Paratypes: BRAZIL, Amazonas: 1♀, 60 km N. Manaus, Fazenda Esteio, ZF-3, km 23, Reserva 1208, RCS, 21.viii.1984; 1♂, idem, Res. 1208, RLE, 25.vi.1985; 1♂, idem, Reserva 1203, RLO, 24.ix.1985; 2♂, idem, Reserva Gavião, 1401, Suspensa #1, 15–30.iii.1996; 1♀, Reserva Ducke, v.1995, CMT 2; 1♀, idem, xi.1995, CMT2; 2♂, 1♀, idem, ix.2001, J.F. Vidal, Malaise; 1♀, Puraquequara, Malaise Igarapé, 11.xii.1998, col. Vidal; 1♀, BR 174, km 15, Tarumã, Malaise, 13.xii.2004, J. Vidal (all housed at INPA).

Additional material examined. BRAZIL, Amazonas: 1♀, 60 km N. Manaus, Fazenda Esteio, ZF-3, km 23, Reserva 1201, RCL, 10.i.1985; 1♀, idem, Reserva 1208, RCN, 13.i.1985; 1♀, idem, Res. 1208, iii.1985; 1♀, idem, 26.vi.1985, Res. 1301, RLN; 1♂, idem, Reserva 1113, RLE, 29.viii.1985; 1♂, 01.x.1985, Res. 1208 RLO; 1♀, idem, Res. 113, RLO, 21.ii.1986; 1♀, idem, Res. 1208, RLE, 12.ii.1987; 1♂, idem, Reserva Gavião, 1401, Suspensa #1, 15–30.iii.1996; 3♂, idem, ix.2001, J.F. Vidal, Malaise (all housed at INPA).

Distribution. Brazil (Amazonas).

Remarks. The similarities of this species with O. costaricensis sp. nov., O. falcata sp. nov. and O. granulosa sp. nov. were previously discussed.

Figures

FIGURES 101 – 108. Oropezella undulata. Hypopygium: 101, ventral aspect; 102, dorsal aspect; 103, phallus, lateral aspect (hypandrium spotted); 104, 105, left and right epandrial lamella, surstylus and cercus, respectively, lateral aspect. Female terminalia: 106, dorsal aspect; 107, ventral aspect; 108, lateral aspect. Scale bar: hypopygium = 0.1 mm; female terminalia = 0.3 mm.