Galeopsomyia eridana Hansson & Hanson 2023, sp.nov.

Galeopsomyia eridana Hansson sp.nov.

(Figs 378, 379, 784)

Diagnosis (female). Antennal clava with distinct constriction between C1 and C2 (Fig. 784); with genal carina; mesoscutellum (Fig. 378) with median part with weak reticulation, meshes elongate, submedian grooves strongly diverging towards posterior part; dorsellum with median carina; propodeum (Fig. 378) with strong reticulation and strong irregular carinae, median carina wide, callus with four setae; gaster (Fig. 378) 1.7× as long as wide, medio-basal Gt1 with longitudinal carinae, apex of gonoplac blunt (Fig. 379); body black (Figs 378, 379).

Female holotype: length of body 1.9mm.

Scape yellowish-brown, pedicel brown, flagellum dark brown. Head black with golden tinges, clypeus dark brown, antennal scrobes black. Mesosoma black. Legs with fore and hind coxae black, mid coxa dark brown; trochanters, femora and tibiae yellowish-brown; T1–3 yellowish-brown, T4 brown. Petiole black. Gaster with Gt1,6,7 black, Gt2-5 golden-purplish; gonoplac black.

Antenna with distinct 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 weak reticulation and some transverse carinae; with a carina between posterior ocelli in posterior part.

Mesoscutum with strong reticulation, meshes isodiametric on sidelobes, elongate on midlobe; midlobe with a complete median groove and with seven scattered adnotaular setae. Mesoscutellum with weak reticulation on median part, with median groove indicated in anterior part, lateral parts with strong reticulation, meshes elongate; submedian grooves distinct, slightly curved and diverging towards posterior part; with six setae scattered over lateral parts. Dorsellum with weak sculpture and shiny, with median carina. Propodeum with a wide median carina; 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 five setae on dorsal surface of submarginal vein; speculum closed; costal setal row unbroken.

Petiole transverse with strong sculpture on dorsal part. Gaster ovate; medio-basal Gt1 with longitudinal carinae; tergites with strong reticulation; apex of gonoplac blunt.

Relative measurements: head length, dorsal view 21; head length, frontal view 37; POL 9.5; OOL 6; lateral ocellus diameter 4.5; head width 49; mouth width 12; malar space 12; eye length 21; scape length 20; scape width 4.5; pedicel+flagellum length 55; pedicel length 6.5; pedicel width, dorsal view 4; F1 length 7.5; F1 width 5; F2 length 9.5; F2 width 5; F3 length 9; F3 width 5; clava length 20; clava width 5.5; C3 length 7; spicule length 2; mesosoma length 58; mesosoma width 43; midlobe of mesoscutum length 17; mesoscutellum length 20.5; mesoscutellum width 20.5; median part of mesoscutellum width (measured medially) 7; median part of mesoscutellum, width in anterior part 6.5; median part of mesoscutellum, width in posterior part 11; lateral part of mesoscutellum, width (measured medially) 4.5; dorsellum length 2.5; propodeum length 10.5; costal cell length 31; costal cell width (measured at widest part) 2; marginal vein length 30; stigmal vein length 10; gaster length 69; gaster width 40; Gt 2 length (measured medially) 9; Gt 4 length (measured medially) 11; Gt 7 length (measured medially) 6.5; Gt

7 width (measured at base) 14.5; longest cercal seta length 13; shortest cercal seta length 5.

Male. Unknown.

Hosts. Unknown.

Distribution. Costa Rica.

Material examined.

Holotype ♀ COSTA RICA, Guanacaste, Estación Pitilla, ACG, LN 532600_380600, 22-30.i.2001, R. Thomas, C. Moraga (NHMUK).