Coarctana taurina sp. nov.

Figs 28, 32I, J

Diagnosis.

Pygofer (Fig. 28G) with apex slightly tapered, subacute. Subgenital plate (Fig. 28H) with small group of filiform setae on apex. Style, in lateral view (Fig. 28K), blade with ventral margin not serrated; apex enlarged, forming a rounded dorsal process. Aedeagus (Fig. 28L, M) apodemal processes narrow basally, curved in right angle dorsally; distal portion, in lateral view, expanded medially, external surface, in posterior view, bearing acute process curved dorsally; shaft apex with pair of minute processes, directed ventrally.

Measurements.

Total length: holotype male 7.8 mm; paratypes, males (n = 5) 7.7-8.0 mm.

Description.

Head, in frontal view (Fig. 28B), frons 1.2 × wider than long; frontogenal suture distant from eye margin by approximately the width of scape; clypeus 1.2 × wider than long; lateral margins slightly convergent apically; apex straight. Head, in lateral view (Fig. 28C), crown-face transition thin, with 4 transverse carinae; clypeus not inflated. Profemur AV row with 4-5 setae; PV row with 1-2 setae. Protibia PD row with 3 setae and undifferentiated intercalary setae; PV row with 5 setae and undifferentiated intercalary setae. Metatibia PD, AD and AV rows with 21-23, 12 and 14-16 macrosetae respectively. Metatarsomere I 4 × longer than apical width; inner row of the ventral surface with 5 setae. Other characteristics as in generic description.

Coloration.

Head and thorax (Fig. 32I, J) reddish-brown. Head (Fig. 28A) with pair of small circular black maculae near posterior margin behind ocelli. Face (Fig. 28B) yellowish without maculae. Pronotum (Fig. 28A) with black punctures and pair of circular black spots near anterior margin behind eye; proepimeron (Fig. 28C), with narrow black band below pronotal carina; lateral carina yellow. Forewing (Fig. 28D) with black maculae on apex of anal veins, cross veins of inner discal and apical cells; transverse brown stripe over subapical cells. Metatibia (Fig. 28C) with cucullate bases of setae blacks.

Male terminalia.

Sternite VIII (Fig. 28E) 1.6 × wider than long; lateral margins weakly convergent posterad; posterior margin rounded. Valve (Fig. 28F) 3.5 × wider than long; dorsal margin slightly excavated; posterior margin straight. Pygofer, in lateral view (Fig. 28G), 2 × longer than maximum height; basodorsal process thin and short, extending ventrally for 1/4 height of lateral lobe; anteroventral, posterodorsal and posteroventral margins rounded; apex slightly tapered, subacute. Subgenital plate, in lateral view (Fig. 28G), short, not reaching pygofer apex; in ventral view (Fig. 28H), elongated, 4.5 × longer than wide, maximum width near basal third; outer margin with minute setae, apex with small group of filiform setae; inner margin slightly rounded; external margin straight; apex rounded. Connective (Fig. 28I) 2 × wider than long; anterior margin excavated; dorsal keel and stem reduced; stem wide. Style, in dorsal view (Fig. 28J), with outer lobe reduced and rounded; in lateral view (Fig. 28K), blade weakly curved dorsally, wider near base and tapered toward apex; ventral margin not serrated; apex enlarged, forming rounded dorsal process. Aedeagus (Fig. 28L, M) preatrium weakly developed; dorsal apodeme with dorsal margin straight, lateral margins slightly produced laterally; apodemal processes narrow basally, curved in right angle dorsally at basal third; distal portion, in lateral view, expanded medially, external surface, in posterior view, bearing acute process curved dorsally; apex rounded, with subapical constriction; shaft symmetrical, strongly curved dorsally near base, with basolateral expansion that surrounds the previous portion of shaft, middle portion cylindrical; apex weakly curved ventrally, with pair of minute processes, directed ventrally. Other characteristics as in generic description.

Female.

Unknown.

Material examined.

Holotype male: Brazil: Rondônia: "Vilhena, RO\ 17/X/1986 \ C. Elias, leg.\ Polonoroeste" (DZUP) . Paratypes: 1♂, same data as holotype (DZUP); 1♂, same data as holotype except 15/X/1986 (DZUP) . - Acre: 1♂, " Brasil, Acre, Mancio \ Lima, Parque Nacional \ Serra do Divisor,\ Rio Azul 13.iii.2006 \ light trap \ AR Calor leg" (MZSP). - Mato Grosso : 1♂, " Utiariti \ Rio Papagaio, MT\ 1-12.X.1966 \ Lenko & Pereira " (MZSP). - Maranhão: 1♂, " Brasil (MA), Carolina \ PARNA Chapada das Mesas,\ Riacho Cancela, 225m \ 7°06′42.2S 47°17′56.8″W, "Armadilha de Malaise\ 01-15.vii.2013; J.A. Rafael \ F. Limeira-de-Oliveira &\ T.T.A. Silva, cols." (CZMA). - Ecuador: "Ecuador Orellana Transect Ent. 1 km S. Onkone Gare Camp Reserva Etnica Waorani Onkone Gare Camp 220m 03/jul/95 00 39′ 10" S 076 26′ 00" W T.L.Erwin et al Fogging terre firme forest" (EPNC - on indefinite loan to the United States National Museum, Washington, USA)

Etymology.

The new species name refers to the aedeagus with apodemal processes bearing projections at the mid-length of external surface resembling bull horns.

Remarks.

Coarctana taurina sp. nov. can be easily distinguished from C. oricula sp. nov. by the style (Fig. 28K) with an apex enlarged, forming a rounded dorsal process, the apodemal processes of aedeagus (Fig. 28L, M) with an acute process curved dorsally on external surface, and the shaft with pair of minute apical processes, directed ventrally.