Galeopsomyia fabia Hansson & Hanson 2023, sp.nov.

Galeopsomyia fabia Hansson sp.nov.

(Figs 218, 219, 1049)

Diagnosis (female). Antenna with F1 3.9×, F2 3.2×, F3 2.3× as long as wide (Fig. 1049); mesoscutellum (Fig. 218) with median part with weak reticulation, lateral parts with strong reticulation, meshes elongate, submedian grooves distinct and parallel; fore and mid coxae pale brown, hind coxa dark brown to black with metallic tinges, tibiae yellowish-white (Fig. 219); hind femur 3.2× as long as wide; petiole very short just a narrow band; gaster (Fig. 218) 3.3× as long as wide; gonoplac 0.9× as long as length of hind femur (Fig. 219).

Female holotype: length of body 1.9mm.

Scape, pedicel and F1–3 yellowish-brown, F4–6 brown. Head black, frons with metallic blue tinges, clypeus dark brown, vertex with metallic purple tinges. Thoracic dorsum black with metallic blue tinges. Legs with fore and mid coxae pale brown, hind coxa dark brown to black with metallic tinges; trochanters yellowish-brown; femora brown with apical tip yellowish-brown; tibiae yellowish-white; T1–3 yellowish-white, T4 dark brown. Wings hyaline, veins yellowish-brown. Petiole dark yellowish-brown. Gaster black with metallic tinges; gonoplac black.

Frons and vertex with strong reticulation. Occipital margin rounded.

Mesoscutum with strong reticulation, meshes isodiametric on sidelobes, elongate on midlobe; midlobe with two adnotaular setae. Mesoscutellum with median part with weak reticulation, lateral parts with strong reticulation, meshes elongate; submedian grooves parallel. Axillae with rather weak reticulation. Dorsellum with strong reticulation. Fore and hind coxae with strong reticulation, mid coxa with weak reticulation. Fore wing with two very weak setae on dorsal surface of submarginal vein; speculum open towards base of wing.

Petiole very short, just a narrow band. Gaster very elongate; tergites with strong reticulation.

Relative measurements: head length, dorsal view 19; head length, frontal view 36; POL 6; OOL 4; lateral ocellus diameter 3; head width 32.5; mouth width 11; malar space 8; eye length 17; scape length 14.5; scape width 4; pedicel+flagellum length 50; pedicel length 7; pedicel width, dorsal view 3.5; F1 length 8.5; F1 width 2.2; F2 length 8; F2 width 2.5; F3 length 7; F3 width 3; clava length 17.5; clava width 3.5; C3 length 6; spicule length 1; mesosoma length 48; mesosoma width 28.5; midlobe of mesoscutum length 12.5; mesoscutellum length 17; mesoscutellum width 12.5; median part of mesoscutellum width (measured medially) 5.5; median part of mesoscutellum, width in anterior part 5.5; median part of mesoscutellum, width in posterior part 5.5; lateral part of mesoscutellum, width (measured medially) 2.5; dorsellum length 2; propodeum length 9; costal cell length 25; costal cell width (measured at widest part) 1; marginal vein length 29; stigmal vein length 7.5; gaster length 77; gaster width 23; Gt 2 length (measured medially) 7; Gt 4 length (measured medially) 10.5; Gt 7 length (measured medially) 9; Gt

7 width (measured at base) 11; longest cercal seta length 11; shortest cercal seta length 6.

Male. Unknown.

Hosts. Unknown.

Distribution. Costa Rica.

Material examined.

Holotype ♀ COSTA RICA, Puntarenas, Golfito, Reserva Forestal Golfo Dulce, Estación Agujas, LS 276750_526550, 250- 350m, 11.ii.2002, J.A. Azofeifa (NHMUK).