Galeopsomyia gutierrezi Hansson & Hanson 2023, sp.nov.

Galeopsomyia gutierrezi Hansson sp.nov.

(Figs 416, 417, 799)

Diagnosis (female). Antennal clava solid (Fig. 799); genal carina present; midlobe of mesoscutum predominantly metallic purplish and mesoscutellum metallic bluish-purple, i.e. with distinctly different colours (Fig. 416); mesoscutellum (Fig. 416) with strong reticulation, meshes elongate, submedian grooves distinct with outer margin indistinct in anterior half, curved and diverging towards posterior part; dorsellum completely hidden by overhanging posterior part of mesoscutellum in dorsal view, with median carina; propodeum (Fig. 416) with strong irregular carinae, callus with four setae; gaster (Fig. 416) 2.1× as long as wide, medio-basal Gt1 with a sharp transverse edge dorsally, tergites with strong reticulation.

Female holotype: length of body 1.7mm.

Scape yellowish-brown, pedicel pale brown, flagellum dark brown. Head with frons metallic bluish-purple, antennal scrobes black, clypeus dark brown; vertex metallic bluish. Mesoscutum with sidelobes and lateral parts of midlobe metallic bluish-purple, median part of midlobe metallic purplish, mesoscutellum metallic bluish-purple; propodeum black with metallic blue tinges. Legs with fore and mid coxae dark brown, hind coxa black with metallic bluish-purple tinges; trochanters dark brown; fore and mid femora dark brown with apex yellowish-brown, hind femur black with metallic bluish-purple tinges; tibiae yellowish-brown; T1–3 yellowish-brown, T4 pale brown. Petiole black. Gaster with Gt 1 metallic bluish-purple with hind margin metallic purplish, Gt 2-4 metallic purplish, Gt5-7 black; gonoplac dark brown to black.

Antennal clava solid. Frons with strong reticulation, antennal scrobes with weak reticulation, clypeus smooth; with genal carina. Vertex with strong reticulation; with a carina between posterior ocelli in posterior part.

Mesoscutum with strong reticulation, meshes isodiametric on sidelobes, elongate on midlobe, midlobe with parts close to notauli rugose; midlobe without a median groove, with 12 scattered setae on rugose parts. Mesoscutellum with strong reticulation, meshes elongate; submedian grooves distinct with outer margin indistinct in anterior half, curved and diverging towards posterior part; with an indistinct ±complete median groove; with six setae scattered over lateral parts. Dorsellum not visible in dorsal view, hidden under overhanging mesoscutellum, with strong sculpture, with median carina. Propodeum short, with a strong median carina, expanding both anteriorly and posteriorly; with strong reticulation; callus with four setae. Coxae with strong reticulation, hind coxa especially so. Fore wing with three setae on dorsal surface of submarginal vein; speculum closed; costal setal row broken.

Petiole very short. Gaster elongate; medio-basal Gt 1 with a sharp transverse edge dorsally; tergites with strong reticulation.

Relative measurements: head length, dorsal view 22; head length, frontal view 34; POL 8.5; OOL 5; lateral ocellus diameter 4; head width 43; mouth width 9.5; malar space 10.5; eye length 21.5; scape length 14; scape width 3.5; pedicel+flagellum length 40; pedicel length 5.5; pedicel width, dorsal view 3.5; F1 length 5,5; F1 width 4.5; F2 length 6; F2 width 4.5; F3 length 6; F3 width 5; clava length 14.5; clava width 5; C3 length 5; spicule length 1; mesosoma length 49; mesosoma width 37; midlobe of mesoscutum length 19.5; mesoscutellum length 20; mesoscutellum width 19; median part of mesoscutellum width (measured medially) 7; median part of mesoscutellum, width in anterior part 7.5; median part of mesoscutellum, width in posterior part 9.5; lateral part of mesoscutellum, width (measured medially) 4.5; dorsellum length 2; propodeum length 6; costal cell length 25; costal cell width (measured at widest part) 2.5; marginal vein length 22; stigmal vein length 8; gaster length 72; gaster width 35; Gt2 length (measured medially) 7; Gt4 length (measured medially) 12; Gt7 length (measured medially) 11; Gt7 width (measured at base) 12; longest cercal seta length nm; shortest cercal seta length nm.

Male. Unknown.

Hosts. Unknown.

Distribution. Costa Rica.

Material examined.

Holotype ♀ COSTA RICA, Guanacaste, Cañas, Río Chiquito, LN 292500_ 417000, 410m, 25.vii.2003, J. Azofeifa.

Etymology. Named in honour of Gustavo Gutiérrez, former director of the School of Biology and current rector of the University of Costa Rica, geneticist.