Galeopsomyia lema Hansson & Hanson 2023, sp.nov.

Galeopsomyia lema Hansson sp.nov.

(Figs 456, 457, 815)

Diagnosis (female). Antenna with distinct constriction between between C1 and C2 (Fig. 815); genal carina present; mesoscutellum (Fig. 456) with submedian grooves curved, outer margin missing, median part with very weak reticulation, lateral parts rugose; dorsellum with median carina; propodeum (Fig. 456) with strong irregular carinae and strong reticulation, callus with four setae; gaster (Fig. 456) 2.4× as long as wide, medio-basal Gt 1 with longitudinal carinae laterally, tergites with strong reticulation.

Female holotype: length of body 2.5mm (paratypes 1.9–2.4mm).

Scape yellowish-brown, pedicel and flagellum dark brown to black. Head with frons metallic bluish-green with scrobes black with metallic tinges and clypeus dark brown; vertex black with metallic blue tinges. Mesoscutum black with golden-green tinges, mesoscutellum and propodeum golden-green. Legs with coxae yellowish-brown, fore coxa with very base and hind coxa with basal half dark brown; trochanters, femora, tibiae and tarsi yellowish-brown, T4 pale brown. Petiole black. Gaster with Gt 1 metallic bluish-green with posterior margin metallic purple, Gt2-5 metallic purple, Gt6-7 black; gonoplac black.

Antenna with distinct constriction between C1 and C2. Face below level of toruli with strong reticulation, clypeus smooth, frons rugose, 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 and isodiametric meshes on sidelobes, midlobe with rather strong reticulation and elongate meshes on median part, rugose on parts close to notauli, with an indistinct but complete median groove, with 18 setae on rugose parts. Mesoscutellum with submedian grooves with outer margin missing, median part with very weak reticulation, lateral parts rugose with 16 scattered setae. Dorsellum with weak sculpture, with median carina. Propodeum with a strong median carina that is expanded posteriorly; with strong irregular carinae and strong reticulation; callus with four setae. Fore and hind coxae with strong reticulation, mid coxa with weak reticulation. Fore wing with six setae on dorsal surface of submarginal vein; speculum open below (apical seta absent); costal setal row unbroken.

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

Relative measurements: head length, dorsal view 25; head length, frontal view 40; POL 10.5; OOL 6.5; lateral ocellus diameter 4.5; head width 51; mouth width 16; malar space 15; eye length 22; scape length 19.5; scape width 4.5; pedicel+flagellum length 62; pedicel length 7; pedicel width, dorsal view 4; F1 length 11.5; F1 width 4.5; F2 length 12; F2 width 5; F3 length 10.5; F3 width 5; clava length 20; clava width 6; C3 length 6; spicule length 2; mesosoma length 69; mesosoma width 45; midlobe of mesoscutum length 27; mesoscutellum length 26; mesoscutellum width 22; median part of mesoscutellum width (measured medially) 6.5; median part of mesoscutellum, width in anterior part 8; median part of mesoscutellum, width in posterior part 10; lateral part of mesoscutellum, width (measured medially) 5; dorsellum length 3; propodeum length 10; costal cell length 36; costal cell width (measured at widest part) 2.5; marginal vein length 38; stigmal vein length 11; gaster length 108; gaster width 45; Gt 2 length (measured medially) 10; Gt 4 length (measured medially) 19; Gt 7 length (measured medially) 17; Gt 7 width (measured at base) 14; longest cercal seta length 15; shortest cercal seta length 6.

Male. Unknown.

Hosts. Unknown.

Distribution. Costa Rica.

Material examined. Holotype ♀ COSTA RICA, Puntarenas, Estación Altamira, Sendero Los Gigantes, 9º02’N, 83º00’W, 1450m, 7.ii-5.iii.2002, swept, C. Hansson & Parataxonomos (MZLU). Paratypes (7♀, MZLU, MZUCR, NHMUK): 1♀ with same label data as holotype; 3♀ COSTA RICA, Puntarenas, Estación Altamira, Sendero Casa Coca, 9º02’N, 83º00’W, 1450-1700m, 7.ii-5.iii.2002, swept, C. Hansson & Parataxonomos; 1♀ COSTA RICA, Puntarenas, San Vito, Las Cruces, Wilson Botanico, 1150m, 18-22.iii.1990, J.S. Noyes; 1♀ COSTA RICA, Alajuela, Estación Biológica San Ramón, 10°13’N, 84°37’W, 900m, x-xii.1995, P. Hanson; 1♀ COSTA RICA, San José, Zurqui de Moravia, 10º03’03’’N, 84º00’22’’W, 1600m, iv.1992, P. Hanson.