Galeopsomyia guanacastensis Hansson & Hanson 2023, sp.nov.

Galeopsomyia guanacastensis Hansson sp.nov.

(Figs 116, 117, 1019)

Diagnosis (female). Antennal clava solid (Fig. 1019); genal carina present; mesoscutellum (Fig. 116) with strong reticulation, meshes elongate, without a median groove, submedian grooves weak but traceable, running close to and parallel with lateral margins of mesoscutellum; hind coxa with a carina along posterior margin; gaster (Fig. 116) 2.6× as long as wide, medio-basal Gt 1 without transverse edge or carina dorsally, with relatively weak reticulation and shiny, remaining tergites with strong reticulation.

Female holotype: length of body 2.0mm (paratypes 1.6–2.4mm).

Scape yellowish-brown, pedicel brown, flagellum dark brown. Head with frons metallic bluish-green, clypeus dark brown, antennal scrobes black; vertex black with metallic blue tinges. Mesoscutum and mesoscutellum metallic blue; propodeum golden-green. Legs with fore and hind coxae black with metallic tinges, mid coxa dark brown; trochanters dark brown; femora dark brown with apex yellowish-brown; tibiae yellowish-brown; T1–3 yellowish-brown, T4 pale brown. Petiole black. Gaster with Gt 1 metallic blue, Gt 2-5 golden-purplish, Gt 6 golden-green, Gt

7 black; gonoplac black.

Antenna with solid clava. Face below level of toruli with weak reticulation, clypeus smooth, frons with strong reticulation, antennal scrobes with weak reticulation; with genal carina. Vertex with strong reticulation.

Mesoscutum with strong reticulation, meshes isodiametric on sidelobes, ±elongate on midlobe; midlobe without a median groove, with ten scattered adnotaular setae. Mesoscutellum with strong reticulation, meshes elongate, without median groove; submedian grooves weak but traceable, running close to and parallel with lateral margins of mesoscutellum; anterior pair of setae situated just behind middle of mesoscutellum. Dorsellum with strong reticulation. Propodeal callus with two setae. Fore and hind coxae with strong reticulation, mid coxa with weak reticulation; hind coxa with a carina along posterior margin. Fore wing with three setae on dorsal surface of submarginal vein; speculum closed; costal setal row unbroken.

Petiole very short, just a narrow band. Gaster elongate; medio-basal Gt 1 without transverse edge or carina dorsally, with relatively weak reticulation and shiny, remaining tergites with strong reticulation.

Relative measurements: head length, dorsal view 21; head length, frontal view 35; POL 9.5; OOL 5; lateral ocellus diameter 4; head width 45; mouth width 13.5; malar space 13.5; eye length 19.5; scape length 17; scape width 4; pedicel+flagellum length 42; pedicel length 7; pedicel width, dorsal view 4; F1 length 6.5; F1 width 4.5; F2 length 6; F2 width 4.5; F3 length 5.5; F3 width 5; clava length 15; clava width 5.5; C3 length 5; spicule length 1.2; mesosoma length 55; mesosoma width 40; midlobe of mesoscutum length 21.5; mesoscutellum length 19.5; mesoscutellum width 19; median part of mesoscutellum width (measured medially) 10; median part of mesoscutellum, width in anterior part 9.5; median part of mesoscutellum, width in posterior part 12; lateral part of mesoscutellum, width (measured medially) 2.5; dorsellum length 2.5; propodeum length 7.5; costal cell length 28; costal cell width (measured at widest part) 2.5; marginal vein length 28; stigmal vein length 9; gaster length 83; gaster width 32; Gt 2 length (measured medially) 5.5; Gt 4 length (measured medially) 15; Gt 7 length (measured medially) 7; Gt 7 width (measured at base) 10.5; longest cercal seta length nm; shortest cercal seta length nm.

Male. Unknown.

Hosts. Unknown.

Distribution. Costa Rica.

Material examined.

Holotype ♀ COSTA RICA, Guanacaste, Parque Nacional Santa Rosa, Bosque Humedo, 10°51’N, 87°37’W, 300m, 21.ii.2003, J.S. Noyes (NHMUK). Paratypes (8♀, MZLU, MZUCR, NHMUK): 1♀ with same label data as holotype; 1♀ COSTA RICA, Guanacaste, Parque Nacional Santa Rosa, 300m, H-3-O, 6-27.ix.1986, D.H. Janzen & I.D. Gauld; 1♀ COSTA RICA, Guanacaste, Estación Maritza, 10°58’N, 85°29’W, 700m, 23.ii.2003, J.S. Noyes; 1♀ COSTA RICA, Guanacaste, Bagaces, Parque Nacional Palo Verde, Sector Catalina, Fila Catalina, LN 257400_ 400000, 250m, 8.i-8.ii.2000, malaise trap, I. Jiménez; 1♀ COSTA RICA, Guanacaste, Bagaces, Parque Nacional Palo Verde, 0.3 km Radio Estación Palo Verde, LN 259050_388400, 10m, 13-20.xi.2000, I. Jiménez; 1♀ COSTA RICA, Guanacaste, Bagaces, Parque Nacional Palo Verde, Sector Palo Verde, LN 260952_ 385020, 50m, 5-18.i 2000, swept, I. Jiménez; 1♀ COSTA RICA, Guanacaste, Las Pailas, LN 309550_ 388850, 1250m, 27.i-11.ii.2001, C. Moraga, P. Rios, P.N. Thomas; 1♀ COSTA RICA, Guanacaste, Bosque Nacional Diriá, Retallano, Alrededores Torre de Control de Incendio, LN 238550_358650, 600-700m, 15.xi-16.xii.2001, I. Jiménez.

Etymology. Named after type area, Guanacaste Province.