Brincadorus yanayacu sp. nov.

(Fig. 7)

Type-locality: Yanayacu, Tungurahua Province, Ecuador.

Length: 5.3 mm.

Coloration: Body yellow dorsally, and light yellow ventrally (Figs. 7A–B). Crown, pronotum and mesonotum with muscular markings slightly darker (Figs. 7A–B). Forewing translucent, yellow, without maculae or spots (Figs. 7A–B).

External morphology: Coronal suture not reaching midlength of crown; frontal region slightly upturned in lateral view; crown texture with arching carinae coarse anteriorly and becoming faint posteriorly; anterior margin with numerous transverse carinae (Figs. 7A–B). Clypellar suture arcuate. Clypellus tumid in lateral view; constricted at base and tapering toward apex. Forewing without extra crossveins on costal margin (Figs. 7A–B). Profemur intercalary row with 10 to 11 setae; row AV with 5–6 moderately long macrosetae. Protibia rows AD+PD with 1+3 relatively small macrosetae. Other characters as in the generic description.

Male genitalia: Pygofer with dorsal process short, curved posteroventrally (Fig. 7C). Subgenital plate inner margin excavated; apex oblique, thorn-like, projecting caudally, extending beyond apex of pygofer in lateral view (Figs. 7C–D). Connective relatively long, sinuate in lateral view; arms nearly parallel, slightly separated medially, closely appressed anteriorly (Fig. 7E–F). Style apophysis apex acuminate, smooth, not reaching midlength of subgenital plates, not extending beyond connective stem (Fig. 7E–F). Aedeagus without processes; shaft short, slightly expanded at midlength, becoming narrower towards apex, apex directed posterodorsally in lateral view; gonopore apical, opening dorsally (Figs. 7F–G). Phragma forming pair of long membranous lobes, with setae, ensheathing aedeagus shaft.

Female terminalia: Female unknown.

Etymology: The epithet of the new species refers to the type-locality of the holotype, Yanayacu, Ecuador. The epithet is in apposition to the generic name.

Notes: Brincadorus yanayacu sp. nov. resembles B. laticeps and B. cruceno sp. nov., as they all lack basidorsal processes on the aedeagus. However, the new species can be distinguished by the relatively long connective, which is sinuate in lateral view, the thorn-like tips of subgenital plates, and short aedeagus, slightly expanded at midlength, and becoming narrower towards apex in lateral view (Figs. 7E–G).

Type-material: holotype ♂, “ ECUADOR: Napo Yanayacu Biol St 5km SW Cusanga 2100 m 29.I.2009 Hg Vapor, S 0° 35.967’ W 77°53.419’ Col. Geert Goemans ” (QCAZ) . 1♂ paratype, “ ECUADOR: Napo Province, Limoncocha, on Rio Napo, 21-II-1974, Boyce A. Drummond, III, Blacklight Trap ” (FSCA) .