Galeopsomyia chrysops Hansson sp.nov.

(Figs 336, 337, 766, 916, 968, 1115)

Diagnosis (female). Antenna (Fig. 766) with distinct constriction between C1 and C2, flagellum elongate, flagellum+pedicel 1.5× as long as width of mesosoma, scape predominantly dark brown; vertex with weak reticulation outside ocellar triangle; with genal carina; midlobe of mesoscutum with weak reticulation (Fig. 336), hence shiny; mesoscutellum (Fig. 916) elongate, 1.2× as long as wide, submedian grooves with several transverse carinae, median part 2.6× as long as wide with weak reticulation; dorsellum with median carina; propodeum (Fig. 336) with strong irregular carinae and strong reticulation, callus with two setae; fore coxa pale brown with dark base, mid coxa yellowish-brown and hind coxa dark brown with apex yellowish-brown (Fig. 337); petiole transverse with strong sculpture on dorsal part; gaster (Fig. 336) 2.0× as long as wide, medio-basal Gt1 with short longitudinal carinae; body bright metallic (golden-red (e.g. holotype) (Figs 336, 337), golden-green or golden).

Female holotype: length of body 1.9mm (paratypes 1.8–2.2mm).

Antenna dark brown with base of scape pale brown. Head golden-green. Mesosoma golden-red. Legs with fore coxa pale brown with dark base, mid coxa yellowish-brown and hind coxa dark brown with apex yellowish-brown; trochanters, femora, tibiae and tarsi yellowish-brown. Petiole black. Gaster with Gt1 golden-green with red tinges, Gt2-5 black with metallic purple tinges with sides golden-green, Gt6-7 golden-green; 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 weak reticulation outside ocellar triangle, with wrinkled sculpture inside ocellar triangle. Occipital margin with a carina behind ocellar triangle.

Mesoscutum with weak reticulation and shiny, meshes isodiametric on sidelobes, elongate on midlobe; midlobe with a very weak median groove in posterior half, with five adnotaular setae in one row. Mesoscutellum with weak reticulation and shiny, meshes elongate; submedian grooves straight and slightly diverging towards posterior part, with several transverse carinae; with a very weak median groove; setae on lateral parts broken off in holotype (paratypes from same locality as holotype with six setae on lateral parts). Dorsellum with weak sculpture, with median carina. Propodeum with a narrow median carina that expands and is concave in posterior part; with strong irregular carinae and strong reticulation; callus with two 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 elongate; medio-basal Gt 1 with short longitudinal carinae; tergites with weak reticulation and shiny.

Relative measurements: head length, dorsal view 21; head length, frontal view 36; POL 9.5; OOL 5.5; lateral ocellus diameter 4; head width 46; mouth width 12; malar space 13; eye length 20; scape length 18; scape width 4; pedicel+flagellum length 60; pedicel length 6; pedicel width, dorsal view 3.7; F1 length 10; F1 width 5; F2 length 11; F2 width 5; F3 length 10; F3 width 5; clava length 21; clava width 5.5; C3 length 7.5; spicule length 2; mesosoma length 59; mesosoma width 40; midlobe of mesoscutum length 22; mesoscutellum length 22; mesoscutellum width 18; median part of mesoscutellum width (measured medially) 8.5; median part of mesoscutellum, width in anterior part 8; median part of mesoscutellum, width in posterior part 9.5; lateral part of mesoscutellum, width (measured medially) 2; dorsellum length 4; propodeum length 11; costal cell length 32; costal cell width (measured at widest part) 2; marginal vein length 30; stigmal vein length 10; gaster length 72; gaster width 37; Gt 2 length (measured medially) 9; Gt 4 length (measured medially) 14; Gt 7 length (measured medially) 7; Gt

7 width (measured at base) 10; longest cercal seta length 14; shortest cercal seta length 4.5.

Male. Length of body of body 1.7mm.

Antenna (Fig. 968) with scape widest in the middle; plaque black and situated just above the middle; dorso-basal whorls of long setae present on F1–F4 and on C1, ventro-basal whorls of long setae present on C1 and C2. Gaster long ovate. Otherwise as in female.

Relative measurements: head length, dorsal view 20; head length, frontal view 32; head width 43; mouth width 12; malar space 16; eye length 20; scape length 17; scape width 4; plaque length 6; pedicel length 5.5; pedicel+flagellum length 66; F1 length 4.5; F1 width 4; F2 length 8.5; F2 width 4; F3 length 10; F3 width 4; F4 length 11; F4 width 4; clava length 27; clava width 4; mesosoma length 54; mesosoma width 35; gaster length 58; gaster width 25; longest subbasal seta on F1, length 25.

Hosts. Unknown.

Distribution. Costa Rica.

Material examined.

Holotype ♀ COSTA RICA, Alajuela, Parque Nacional Arenal, 10°28’N, 84°45’W, 617m, 21-28. ii.2005, C. Hansson (MZLU) . Paratypes (32♀ 22♂, CNC, MZLU, MZUCR, NHMUK): 9♀ 6♂ with same label data as holotype; 1♀ COSTA RICA, Alajuela, Parque Nacional Volcan Arenal, 10º26’N, 84º43’W, 600m, 26.ii.2013, J.S. Noyes ; 1♀ COSTA RICA, Alajuela, San Carlos, Sector la Península, LN 453800_ 271500, 600m, 14.ix-x.2000, G. Carballo ; 1♀ from same locality as previous but collected 9-14. xi.2000; 3♀ 12♂ COSTA RICA, Alajuela, Parque Nacional Arenal, La Peninsula , 10°27’N, 84°45’W, 25.ii.2003, J.S. Noyes ; 1♀ COSTA RICA, Alajuela, San Carlos, Parque Nacional Arenal, Sendero Pilón, LN 269100_ 457900, 600m, 15.i-1.ii.2000, malaise trap, G. Carballo; following from same locality as previous but collected 30.xi-22.xii.1999 (1♀), 6-14.xi.2000 (3♀), 26.ii.2003 (3♀) ; 3♀ 3♂ COSTA RICA, Alajuela, San Carlos, Fortuna, Parque Nacional Arenal, Sendero Mena, LN 271800_ 454170, 600m, 20.x-14.xi.2001, malaise trap, G. Carballo ; 1♀ COSTA RICA, Alajuela, San Carlos, A.C.A, Reserva Forestal Arenal, Sector Cerro Chato, LN 269500_460900, 1100m, 22.x-22.xi.1999, G. Carballo ; 2♀ COSTA RICA, Alajuela, Refugio Nacional de Vida Silvestre (RNVS) Cano Negro, LN 319100_ 450100, 20m, 9.iii-2.iv.1994, malaise trap, K. Martinez ; 1♀ 1♂ COSTA RICA, Alajuela, Parque Nacional Arenal, Sendero Ceibo, 10°27’N, 84°41’W, 620m, 22-23.ii.2016, J.S. Noyes ; 1♀ COSTA RICA, Limón, Reserva Biológica Hitoy-Cerere, 9°40’N, 83°02’W, 100m, 24-25.ii.2004, J.S. Noyes ; 1♀ from same locality as previous but collected 21-22.ii.2006 .

Etymology. From the Greek chrysops = shining like gold, referring to colour of body.