Galeopsomyia bricenoi Hansson & Hanson 2023, sp.nov.

Galeopsomyia bricenoi Hansson sp.nov.

(Figs 316, 317, 757)

Diagnosis (female). Antenna with a constriction between C1 and C2 (Fig. 757); genal carina present; mesoscutellum (Fig. 316) with median part with weak reticulation and a ±complete weak median groove, meshes elongate, submedian grooves distinct and diverging towards posterior part; dorsellum with median carina; propodeum (Fig. 316) short with strong reticulation, callus with three setae; petiole very short, transverse; gaster (Fig. 316) elongate, 2.3× as long as wide with strong reticulation, medio-basal Gt1 with a sharp edge shaped like an inverted U.

Female holotype: length of body 2.1mm.

Scape yellowish-brown, pedicel pale brown, flagellum dark brown. Head with frons metallic bluish-green, clypeus dark brown, scrobes black; vertex metallic bluish-purple. Mesoscutum black with median part of midlobe and lateral parts of sidelobes metallic blue; mesoscutellum metallic bluish-green; propodeum metallic green. Legs with coxae black with metallic blue tinges; trochanters, femora, tibiae and tarsi yellowish-brown, T4 pale brown. Petiole black. Gaster with Gt1 metallic greenish-blue, Gt2-5 metallic purple, Gt6 metallic blue, Gt7 black; gonoplac black.

Antenna with distinct constriction between C1 and C2. Frons with strong reticulation, clypeus smooth, antennal scrobes with weak reticulation; with genal carina. Vertex with strong reticulation outside ocellar triangle, with wrinkled sculpture inside ocellar triangle and with a sharp edge between posterior part of posterior ocelli.

Mesoscutum with strong reticulation, meshes isodiametric on sidelobes, elongate on midlobe; with an indistinct median groove in posterior half; with six adnotaular setae in two rows. Mesoscutellum with median part with weak reticulation and a ±complete weak median groove, lateral parts with strong reticulation, meshes elongate; submedian grooves distinct and diverging towards posterior part; with four setae scattered over lateral parts. Dorsellum with strong sculpture, with median carina. Propodeum with a strong and wide median carina that expands strongly in very posterior part; with strong reticulation; callus with three 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 closed; costal setal row broken.

Petiole very short, a narrow band. Gaster elongate; medio-basal Gt 1 with a sharp edge shaped like an inverted U; tergites with strong reticulation.

Relative measurements: head length, dorsal view 23; head length, frontal view 35; POL 8.5; OOL 5.5; lateral ocellus diameter 5; head width 50; mouth width 16; malar space 12; eye length 22; scape length 17.5; scape width 4; pedicel+flagellum length 52; pedicel length 6; pedicel width, dorsal view 3.5; F1 length 9; F1 width 5; F2 length 9.5; F2 width 4.5; F3 length 9; F3 width 5; clava length 19; clava width 5; C3 length 6; spicule length 1.5; mesosoma length 60; mesosoma width 43; midlobe of mesoscutum length 24; mesoscutellum length 23; mesoscutellum width 23; median part of mesoscutellum width (measured medially) 7; median part of mesoscutellum, width in anterior part 7; median part of mesoscutellum, width in posterior part 8.5; lateral part of mesoscutellum, width (measured medially) 5; dorsellum length 2.5; propodeum length 8.5; costal cell length 30; costal cell width (measured at widest part) 2; marginal vein length 30; stigmal vein length 8.5; gaster length 93; gaster width 41; Gt 2 length (measured medially) 7.5; Gt 4 length (measured medially) 17; Gt 7 length (measured medially) 12; Gt

7 width (measured at base) 12; longest cercal seta length 14; shortest cercal seta length 6.

Male. Unknown.

Hosts. Unknown.

Distribution. Costa Rica.

Material examined.

Holotype ♀ COSTA RICA, Puntarenas, Los Charcos de Osa, 8º40′N, 83º30′W, 50m, 18-19.ii.2008, J.S. Noyes (NHMUK).

Etymology. Named in honour of Daniel Briceño, former director of the School of Biology, University of Costa Rica, entomologist.