Coarctana occultata sp. nov.

Figs 22, 31I, J

Diagnosis.

Pygofer (Fig. 22G) with apex broad and rounded. Subgenital plate (Fig. 22H) with few filiform setae near outer margin and a longer apical group on dorsal surface. Style (Fig. 22K) apex tapered, curved dorsally and acute. Aedeagus (Fig. 22L, M) apodemal process slender at base and enlarged subapically; shaft apex with pair of subapical processes short, about 1/5 length of shaft, curved ventrally.

Measurements.

Total length: holotype male 7.8 mm; paratype, male (n = 1) 8.1 mm.

Description.

Head, in frontal view (Fig. 22B), frons 1.2 × wider than long; frontogenal suture distant from eye margin by approximately the width of scape; clypeus very wide, 1.1 × wider than long; lateral margins straight and parallel near base and distally strongly convergent toward apex; apex straight. Head, in lateral view (Fig. 22C), crown-face transition thin, with 4 transverse carinae; clypeus slightly inflated. Profemur AV row with 4-5 setae; PV row with 1-2 setae. Protibia PD row with 4 setae and undifferentiated intercalary setae; PV row with 5 setae and undifferentiated intercalary setae. Metatibia PD, AD and AV rows with 23-24, 12 and 15-16 macrosetae respectively. Metatarsomere I 4 × longer than apical width; inner row of the ventral surface with 7-9 setae. Other characteristics as in generic description.

Coloration.

Head and thorax (Figs 22A-D, 31I, J) reddish-brown. Face (Fig. 22B) yellowish; frons reddish-brown below crown face transition; antenal pit black. Proepimeron (Fig. 22C) black. Forewing (Fig. 22D) with small black maculae on apex of anal veins, cross veins of discal and apical cells; costal and 5th apical cells dark brown. Metatibia (Fig. 22C) with cucullate bases of setae blacks.

Male terminalia.

Sternite VIII (Fig. 22E) 1.5 × wider than long; lateral margins parallel; posterior margin rounded. Valve (Fig. 22F) 1.6 × wider than long; posterior margin slightly excavated. Pygofer, in lateral view (Fig. 22G), 2 × longer than maximum height; basodorsal process thin and long, extending ventrally by 1/3 height of lateral lobe; anteroventral margin rounded; posterodorsal margin straight; posteroventral margin rounded; apex broad, rounded. Subgenital plate, in lateral view (Fig. 22G), almost reaching pygofer apex; in ventral view (Fig. 22H), elongated, 3.8 × longer than wide, maximum width near half length; dorsal surface with few filiform setae near outer margin and a longer apical group on dorsal surface; lateral margins slightly rounded; apex tapered, rounded. Connective (Fig. 22I) wider than long; anterior margin moderately excavated; dorsal keel and stem reduced. Style, in dorsal view (Fig. 22J), with outer lobe truncated; in lateral view (Fig. 22K), blade slender, slightly tapered toward apex; dorsal and ventral margins almost straight; ventral margin with apical half serrated; apex curved dorsally, acute. Aedeagus (Fig. 22L, M) preatrium weakly developed; dorsal apodeme bent posterad, dorsal margin rounded, lateral margins produced laterally; apodemal process slender at base and enlarged subapically, strongly curved dorsally near base; apex rounded; shaft approximately cylindrical, very long and thin, strongly curved dorsally near base, apical half slightly sinuate; apex with pair of subapical processes thin and short, curved ventrally. Other characteristics as in generic description.

Female.

Unknown.

Material examined.

Holotype male: Peru: " Peru, Cuzco, Estrada 30 C\ 26km W Quincemil, 23.viii.2012, (light)\ 13°21′18″S 70°53′22″W,\ 985m R.R. Cavichioli leg." (MUSM) . Paratype: " Peru, Dept. Amazonas, Distr.\ Águas Verdes, Bagua / Tarapoto Rd \ (5N) at Km 403, Malaise, 1-8.V.2009 \ ME Irwin, G Antón Maya\ 1125m 05°41′23″S, 77°38′13″W (DZRJ) .

Etymology.

The new species name comes from the Latin word “occultatum” and means hidden. This name was chosen because the studied specimens were miss identified as Curtara apena .

Remarks.

Our analysis recovered C. occultata sp. nov. as sister to C. apena comb. nov. with low branch support (SR <50) (Fig. 7). These species have a similar coloration (Fig. 31A, B, I, J), and the subgenital plates (Fig. 22H) with long filiform setae forming an apical group, and a similar aedeagus shape (Fig. 22L). However, the new species is differentiated by having a shorter pygofer and the aedeagus with a single pair of subapical processes.