Psychoda matogrossensis, sp. nov.

(Figs 89–96)

Etymology. The species name, matogrossensis, is based on the type locality.

Diagnosis. Eyes separated by 2.3–2.7 facet diameters; hair patch of frons extending to facet row 3; subgenital plate wider than long; subgenital plate homogeneously pilose, with a complex sclerotized structure internally; genital digit absent; genital chamber subrectangular, longer than wide.

Female. Head (Fig. 89): vertex, frons and clypeus pilose; hair patch of frons extending to facet row 3; eye bridge with 4 facets; eyes separated by 2.3–2.7 facet diameters; 5–6 supra-ocular setae; interocular suture weakly sclerotized; clypeus with 2 stronger lateral alveoli, sometimes not evident; frontoclypeal suture present; antenna incomplete; scape cylindrical, 1.5 the length of subspherical pedicel (Fig. 90); ascoids in Y; palpal formula 1.0:1.2(1.18–1.22):1.2(1.18–1.26):1.5(1.35–1.59) (Fig. 91); labellum with 3 apical and 1 subapical teeth and 2 lateral setae (Fig. 92). Wing (Fig. 93): Sc vein not extended beyond base of vein Rs; radial and medial forks complete; veins R5, CuA1, and distal part of veins R1, R2, R3 and R4 slightly darkened, and base of R5 with a brown spot. Distitarsus without apical projection (Fig. 94). Terminalia: subgenital plate wider than long, bilobed, with convex lateral margins, homogeneously pilose (Fig. 95); genital digit absent; internal ornamentation of subgenital plate complex, as illustrated (Fig. 96); genital chamber subrectangular, longer than wide (Fig. 95).

Male. Unknown.

Material examined. Holotype Ƥ BRAZIL, Mato Grosso, Barão de Melgaço, baia de Bracoruré, 07.iv.1998, 20 cdc – m, col. RF /FLS/RDN (INPA). Paratypes: 3 Ƥ same locality, date and collectors of the holotype (2 INPA, 1 MZUEFS); 4 Ƥ BRAZIL, Pará, Santarém, Chac, N. S. Nazaré, km 13, mata, 27.xi.1998, 8 cdc, no collector name (2 INPA, 2 MZUEFS).

Distribution. Brazil (Mato Grosso and Pará).

Comments. As the apical flagellomeres are missing, this species cannot be assigned to any subgenera.