Galeopsomyia palenta Hansson & Hanson 2023, sp.nov.

Galeopsomyia palenta Hansson sp.nov.

(Figs 566, 567, 858)

Diagnosis (female). Antennal clava with distinct constriction between C1 and C2 (Fig. 858); genal carina present; mesoscutellum (Fig. 566) with weak reticulation on median part and without a median groove, lateral parts with strong reticulation, meshes elongate, submedian grooves with outer margin indistinct, ±straight and parallel, subdivided by a few transverse carinae, median part 3.2× as long as wide; propodeum (Fig. 566) with strong irregular carinae and reticulation, callus with two setae; petiole transverse with strong sculpture on dorsal part; gaster (Fig. 566) 1.9× as long as wide, medio-basal Gt 1 with longitudinal carinae, tergites with rather strong reticulation.

Female holotype: length of body 2.4mm.

Scape dark brown with basal one-third yellowish-brown, pedicel and flagellum dark brown. Head with frons golden-red, clypeus dark brown, antennal scrobes black; vertex golden-green. Thoracic dorsum golden-green with red tinges. Legs with fore coxa golden-green, mid coxa dark brown, hind coxa golden-red; trochanters yellowish-brown; femora yellowish-brown with basal one-third infuscate; tibiae yellowish-brown; T1–3 yellowish-brown, T4 pale brown. Petiole black. Gaster with Gt1-5 golden-green, Gt6-7 golden-red; gonoplac black.

Antenna with distinct constriction between C1 and C2. Face below level of toruli with weak reticulation, clypeus smooth, frons rugose, antennal scrobes with weak reticulation; with genal carina. Vertex with weak reticulation outside ocellar triangle, with wrinkled sculpture inside ocellar triangle.

Mesoscutum with strong reticulation, meshes isodiametric on sidelobes, elongate on midlobe, midlobe rugose close to notauli; midlobe without a median groove, with 12 scattered setae on rugose parts. Mesoscutellum with weak reticulation on median part and without a median groove, lateral parts with strong reticulation, meshes elongate; submedian grooves with outer margin indistinct, ±straight and parallel, subdivided by a few transverse carinae; with 12 setae scattered over lateral parts. Dorsellum with strong reticulation, with median carina. Propodeum medially with a few strong irregular carinae, laterally with strong reticulation; callus with two setae. Fore and hind coxae with strong reticulation, mid coxa with weak reticulation. Fore wing with 4&5 setae on dorsal surface of submarginal vein; speculum closed; costal setal row unbroken.

Petiole transverse with strong sculpture on dorsal part. Gaster elongate; medio-basal Gt 1 with longitudinal carinae; tergites with strong reticulation.

Relative measurements: head length, dorsal view 25; head length, frontal view 44; POL 11.5; OOL 6.5; lateral ocellus diameter 5.5; head width 56; mouth width 16; malar space 18.5; eye length 24.5; scape length 21.5; scape width 5; pedicel+flagellum length 68; pedicel length 8.5; pedicel width, dorsal view 4; F1 length 12; F1 width 5; F2 length 11; F2 width 5; F3 length 12; F3 width 5; clava length 22; clava width 6; C3 length 7; spicule length 2; mesosoma length 78; mesosoma width 53; midlobe of mesoscutum length 31; mesoscutellum length 27; mesoscutellum width 23; median part of mesoscutellum width (measured medially) 8.5; median part of mesoscutellum, width in anterior part 8.5; median part of mesoscutellum, width in posterior part 8; lateral part of mesoscutellum, width (measured medially) 5.5; dorsellum length 5.5; propodeum length 14; costal cell length 42; costal cell width (measured at widest part) 3; marginal vein length 39; stigmal vein length 11; gaster length 95; gaster width 51; Gt 2 length (measured medially) 10; Gt 4 length (measured medially) 21; Gt 7 length (measured medially) 11; Gt 7 width (measured at base) 13; longest cercal seta length nm; shortest cercal seta length nm.

Male. Unknown.

Hosts. Unknown.

Distribution. Costa Rica.

Material examined.

Holotype ♀ COSTA RICA, Puntarenas, Buenos Aires, Estación Altamira, Sendero Gigantes, LS 572100_ 331800, 1460m, 10.iii.2001, D. Rubí (NHMUK).