Galeopsomyia scadius

Galeopsomyia scadius (Walker)

(Figs 666, 667)

Tetrastichus Scadius Walker 1843:116-117. Lectotype ♀ (primary type no. 5.142 8, NHMUK 010838710) designated by LaSalle & Schauff (1992:30), examined. Chile. Galeopsomyia scadius (Walker), LaSalle & Schauff (1992:30).

Diagnosis (female). Antennal clava (Fig. 667) strong and solid, flagellum short (flagellum+pedicel 0.9× as long as width of mesoscutum), scape dark brown (Fig. 667); genal carina present and strong; mesoscutellum (Fig. 666) with median part with weak reticulation and shiny, lateral parts with strong reticulation, meshes elongate, submedian grooves ±distinct, slightly curved and diverging slightly towards posterior part; dorsellum with median carina; propodeum (Fig. 666) with strong reticulation, callus with six setae; petiole transverse with strong sculpture on dorsal part; gaster (Fig. 666) 2.1× as long as wide, medio-basal Gt 1 with longitudinal carinae laterally, tergites with strong reticulation.

Redescription (female lectotype). Length 1.6mm.

Antenna dark brown. Head with frons golden-green, clypeus dark brown; vertex golden-green. Thoracic dorsum golden-green. Legs with fore and hind coxae golden-green, mid coxa dark brown; trochanters brown; femora dark brown with apex yellowish-brown; tibiae yellowish-brown; T1–3 yellowish-brown, T4 brown. Petiole black. Gaster black with golden tinges; gonoplac black.

Antennal clava strong and solid. Frons with strong reticulation, clypeal area smooth; scrobes with weak reticulation; with a strong genal carina. Vertex with strong reticulation.

Mesoscutum with strong reticulation, meshes isodiametric, elongate in posterior half of midlobe; midlobe with a complete median groove, with 12 scattered adnotaular setae. Mesoscutellum with median part with weak reticulation and shiny, lateral parts with strong reticulation, meshes elongate; submedian grooves ±distinct, slightly curved and diverging slightly towards posterior part; with five (visible) setae scattered over lateral parts. Dorsellum with strong sculpture, with median carina. Propodeum with a strong median carina that expands towards both posterior and anterior parts; with strong reticulation; callus with six setae. Fore and hind coxae with strong reticulation, mid coxa with very weak reticulation. Fore wing with four setae on dorsal surface of submarginal vein; speculum open; costal setal row unbroken.

Petiole transverse with strong sculpture on dorsal part. Gaster elongate; medio-basal Gt 1 with longitudinal carinae laterally; tergites with strong reticulation.

Relative measurements: head length, dorsal view 24; head length, frontal view 46; POL 15; OOL 7.5; lateral ocellus diameter 3.5; head width 57; mouth width 17; malar space 18; eye length 23.5; scape length 20; scape width 4; pedicel+flagellum length 51; pedicel length 8; pedicel width, dorsal view 5; F1 length 7.5; F1 width 5.5; F2 length 7.5; F2 width 5.5; F3 length 7.5; F3 width 6.5; clava length 16.5; clava width 8.5; C3 length 5; spicule length 1; mesosoma length 74; mesosoma width 56; midlobe of mesoscutum length 29; mesoscutellum length 31; mesoscutellum width 26; median part of mesoscutellum width (measured medially) 11; median part of mesoscutellum, width in anterior part 10; median part of mesoscutellum, width in posterior part 13.5; lateral part of mesoscutellum (measured medially) 6.5; dorsellum length 3; propodeum length 12.5; costal cell length 39; costal cell width (measured at widest part) 3.2; marginal vein length 34; stigmal vein length 13; gaster length 105; gaster width 51; Gt 2 length (measured medially) 12; Gt 4 length (measured medially) 12; Gt 7 length (measured medially) 15; Gt 7 width (measured at base) 18; longest cercal seta length nm; shortest cercal seta length nm.

Male. Unknown.

Hosts. Unknown.

Distribution. Chile (Walker 1842).

Material examined. Lectotype female in NHMUK.