Inpauema gaimarii, sp. nov.

(Figs 27–45)

Etymology. The species epithet is in honor of Dr. Stephen D. Gaimari, who has contributed substantially to the study of Diptera .

Description. Holotype ♂. Body length 4.98 mm.

Diagnosis. Palpus mainly dark yellow, brown medially. Alar membrane brown infuscated, denser on cells c, r1 and r2+3. Tergite 6 about 4X shorter than syntergosternite 7+8, longer laterally. Cercus with a small pointed projection in the tip.

Head (Figs 27–29). Frontal pruinosity velvety dark brown, with distinct dorsal vitta projecting laterally to ocellar triangle reaching vertex area (Fig. 28). Height 1.5X the length; width 1.3X the height. Frons 1.9X wider than long. Fronto-orbital plate with gray-yellowish pruinosity in frontal view (Fig. 28). Antenna with arista brownish on basal half (Fig. 27). Genal groove area brown, large, bare, with dark brown spot, larger near eye margin; gena predominantly gray pruinose; postgena with dark gray to brown pruinosity (Fig. 29). Palpus mainly dark yellow, brown medially.

Thorax (Fig. 30). Mesonotum dark brown to black; when seen from dorsal view and with dorsal, lateral and anterior incident light with large medial gray stripe intermixed with brown stripes, reaching scutellum. Scutellum dark brown to black with gray pruinosity. Legs (Fig. 27). Coxae, femora and tibiae brown to dark brown. Tarsi light brown. Wing (Fig. 31). Slightly light brown infuscated along anterior (costal) half. Length 4.3 mm, width 1.4 mm, 3X longer than wide.

Abdomen (Fig. 33). Male terminalia. Tergite 6 thin, about 4X shorter than syntergosternite 7+8, longer laterally (Figs 34–35). Epandrium with scattered setae on posterior half; posterior margin with medial reentrance (Fig. 35). Cercus almost as wide as long, longer than epandrium, somewhat horizontally directed with a small pointed projection in the tip (Figs 34–37). Hypandrium 2.4X longer than epandrium (Fig. 34). Phallapodeme 1.6X longer than hypandrium (Figs 34–35). Basiphallus as long as distiphallus (Figs 34, 36). Distiphallus subrectangular in ventral view, with two small projections basally (Fig. 39). In ventral view, pregonite with distal mesial keel pointed and bifid when seen in ventral view (Figs 38–39); postgonite wide, slightly bilobate (Figs 36, 39). Gonocoxal apodemes upward directed, somewhat sinuous in lateral view (Fig. 36), distinctly fused and with a small dorsal lobe when seen from posterior view (Fig. 40).

Female similar to male, except wing distinctly darker, dark brown on cells c, r1 and r2+3 (Fig. 32). Female (n = 2). Body length 4.36−4.41, mean 4.38 mm; wing length 3.53−3.77, mean 3.65 mm; wing width 1.06−1.36, mean 1.21 mm. Terminalia (Figs 41–45). Sternite 6 with small sclerite on anterior margin, roughly diamond in shape, bare; and two sublateral small sclerites on posterior margin, strongly sclerotized (Fig. 42). Tergite 7 weakly fused with the sternite 7 dorsally with short and sparse setae on posterior ¾, which are long and thin distally. Epiproct and hypoproct small, plate-like. Cerci brown setose, separated, elongated and thin (Fig. 44).

Type material. Holotype ♂ (pinned, terminalia in microvial of glass, good condition), deposited in INPA: “ Brasil, PA[rá], Belterra, Flona Tapajós, 100 m, 02°36'15"S, 54°56'25"W, 16.iv.2008, arm.[adilha] Luz, J.A. Rafael & F.F. Xavier F.” Paratypes: idem, MA[ranhão], Carolina , PARNA [Parque Nacional] Chapada das Mesas, Riacho Sucuruiu, 240 m, 07°07'06"S, 47°18'32"W, Armadilha de Malaise, 01–10.i.2014, J.A. Rafael, F. Limeira-de- Oliveira, T. L. Rocha & S. Pereira, cols.[collectors] (1 ♀ CZMA) ; idem, Água Fria, 212 m, 07°04'14"S, 47°17'16"W, [Armadilha] Suspensa simples (5 m), 10–20.viii.2014, J. A. Rafael, F. Limeira-de-Oliveira, T. L. Rocha & G. A. Reis, cols. (1 ♀ INPA) .

Geographical records. Brazil (Pará, Maranhão).