Galeopsomyia lumbrada Hansson sp.nov.

(Figs 468, 469, 822)

Diagnosis (female). Antenna with a weak constriction between C1 and C2 (Fig. 822); genal carina present; mesoscutellum (Fig. 468) with weak reticulation on median part and a complete median groove, lateral parts with strong reticulation, meshes elongate, submedian grooves straight and diverging towards posterior part; dorsellum without median carina; propodeum (Fig. 468) with a narrow median carina, with strong reticulation, callus with five setae; fore wing with two setae on dorsal surface of submarginal vein; gaster (Fig. 468) ovate, 1.6× as long as wide, tergites with strong reticulation; predominantly non-metallic species (Figs 468, 469).

Female holotype: length of body 1.3mm (paratypes 1.4–1.5mm).

Entire antenna yellowish-brown. Head black with metallic tinges, clypeus dark brown. Mesosoma dark brown to black. Legs with coxae dark brown; trochanters yellowish-brown; femora dark brown; tibiae and tarsi yellowish-brown. Petiole black. Gaster black with metallic tinges; gonoplac black.

Antenna with a weak constriction between C1 and C2. Face below level of toruli with weak reticulation, clypeus smooth, frons with strong reticulation, antennal scrobes with weak reticulation; with genal carina. Vertex with strong reticulation outside ocellar triangle, with wrinkled sculpture inside ocellar triangle; with a carina between posterior ocelli in posterior part.

Mesoscutum with strong reticulation, meshes isodiametric on sidelobes, very elongate on midlobe; midlobe without median groove, with four adnotaular setae in a single row. Mesoscutellum with weak reticulation on median part and a complete median groove, lateral parts with strong reticulation, meshes elongate; submedian grooves ±distinct, straight and diverging towards posterior part; with eight setae scattered over lateral parts. Dorsellum with very weak sculpture and shiny, without median carina. Propodeum with a narrow median carina; with strong reticulation; callus with five setae. Fore and mid coxae with weak reticulation, hind coxa with strong reticulation. Fore wing with two setae on dorsal surface of submarginal vein; speculum closed; costal setal row broken.

Petiole transverse. Gaster ovate; tergites with strong reticulation.

Relative measurements: head length, dorsal view 16; head length, frontal view 27; POL 7; OOL 4.5; lateral ocellus diameter 3.2; head width 37; mouth width nm; malar space 10.5; eye length 15; scape length 14; scape width 3; pedicel+flagellum length 35; pedicel length 5; pedicel width, dorsal view 3; F1 length 5.5; F1 width 3; F2 length 5; F2 width 3; F3 length 5.5; F3 width 3; clava length 12.5; clava width 3.5; C3 length 5; spicule length 1.5; mesosoma length 43; mesosoma width 31; midlobe of mesoscutum length 15.5; mesoscutellum length 15; mesoscutellum width 17; median part of mesoscutellum width (measured medially) 6; median part of mesoscutellum, width in anterior part 5; median part of mesoscutellum, width in posterior part 7; lateral part of mesoscutellum, width (measured medially) 3.5; dorsellum length 1.5; propodeum length 7; costal cell length 21; costal cell width (measured at widest part) 1.5; marginal vein length 22; stigmal vein length 6; gaster length 48; gaster width 30; Gt 2 length (measured medially) 8; Gt 4 length (measured medially) 11; Gt 7 length (measured medially) 3.5; Gt 7 width (measured at base) 9; longest cercal seta length 10; shortest cercal seta length 4.

Male. Unknown.

Hosts. Unknown.

Distribution. Costa Rica.

Material examined.

Holotype ♀ COSTA RICA, Guanacaste, Parque Nacional Santa Rosa, 300m, SE-7-O, 5-26. vii.1986, D.H. Janzen & I.D. Gauld (NHMUK) . Paratypes (3♀, MZLU, NHMUK): 1♀ with same label data as holotype; 1♀ COSTA RICA, Puntarenas, Cabo Blanco, 9º35′N, 85º06′W, 30m, 16-17.ii.2009, J.S. Noyes ; 1♀ COSTA RICA, Puntarenas, Reserva Privada Karen Mogensen, 9º52′N, 85º03′W, 305m, 19-20.ii.2016, J.S. Noyes .