HYMENOPTERA: CHALCIDOIDEA), 5 The genus Galeopsomyia Girault by Christer Hansson * & Paul E. Hanson ** Author Hansson, Christer Author Hanson, Paul E. text Taxonomic Monographs on Neotropical Hymenoptera 2023 Oxford, England 2023-09-28 3 1 1 743 http://dx.doi.org/10.5281/zenodo.8372023 journal article 10.5281/zenodo.8372024 978-1-7397467-2-8 2754-9844 D833085E-4DB3-48D3-964F-A41566442672 Galeopsomyia hallwachsae Hansson sp.nov. ( Figs 120, 121 , 704 ) Diagnosis (female). Antennal clava solid and short ( Fig. 704 ); genal carina present; mesoscutum and mesoscutellum ( Fig. 120 ) with strong reticulation and with ±distinct median groove; mesoscutellum ( Fig. 120 ) with ±distinct submedian grooves that diverge towards posterior part, with elongate meshes; propodeum ( Fig. 120 ) with median carina predominantly with parallel sides; hind coxa with a carina along posterior margin; gaster ( Fig. 120 ) elongate, 2.4× as long as wide, medio-basal Gt 1 with a blunt transverse edge dorsally. Female holotype : length of body 2.0mm. Scape yellowish-brown, pedicel pale brown, flagellum dark brown. Head with frons me- tallic bluish-green, clypeus dark brown, antennal scrobes black; vertex black with metallic blue tinges. Thoracic dorsum metallic bluish-green. Legs with fore and mid coxae dark brown with metallic tinges, hind coxa metallic bluish-green; trochanters pale brown; fore and mid femora dark brown with apex yellowish-brown, hind femur black with metallic bluish-green tinges and apex yellowish-brown; tibiae yellowish-brown; fore tarsus brown, mid and hind tarsi with T1–3 yellowish-white, T4 pale brown. Petiole black. Gaster with Gt 1 golden-green, Gt 2-4 golden-purple dorsally and metallic bluish-green laterally, Gt 5-7 metallic bluish-green; gonoplac dark brown with apex yellowish-brown. Antenna with solid clava. Face below level of toruli with weak reticulation, clypeal area 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 with a weak median groove in posterior half, and with 13 scattered adnotaular setae. Mesoscutellum with strong reticulation, meshes elongate, with a complete median groove; submedian grooves ±distinct, slightly curved and diverging towards posterior part. Dorsellum with strong sculpture. Propodeum with median carina predominantly with parallel sides, strongly expanding backwards in very posterior part; 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 open below and towards base of wing; costal setal row unbroken. Petiole very short, just a narrow band. Gaster elongate; medio-basal Gt 1 with a blunt transverse edge dorsally, with weak reticulation and shiny, remaining tergites with strong reticulation. Relative measurements: head length, dorsal view 22; head length, frontal view 37; POL 11; OOL 4.5; lateral ocellus diameter 4; head width 47; mouth width 15.5; malar space 12.5; eye length 22; scape length 15.5; scape width 4; pedicel+flagellum length 38; pedicel length 7; pedicel width, dorsal view 4; F1 length 6; F1 width 4.5; F2 length 5.5; F2 width 5; F3 length 5; F3 width 5.5; clava length 13; clava width 7; C3 length 3.5; spicule length 1; mesosoma length 57; mesosoma width 45; midlobe of mesoscutum length 26; mesoscutellum length 23; mesoscutellum width 23; median part of mesoscutellum width (measured medially) 12.5; median part of mesoscutellum, width in anterior part 10; median part of mesoscutellum, width in posterior part 14; lateral part of mesoscutellum, width (measured medially) 4; dorsellum length 2; propodeum length 7; costal cell length 29; costal cell width (measured at widest part) 2.5; marginal vein length 25; stigmal vein length 9; gaster length 82; gaster width 34; Gt 2 length (measured medially) 3.5; Gt 4 length (measured medially) 18.5; Gt 7 length (measured medially) 10.5; Gt 7 width (measured at base) 16; longest cercal seta length 10; shortest cercal seta length 4.5. Male Unknown. Hosts . Unknown. Distribution. Costa Rica . Material examined. Holotype ♀ COSTA RICA , Guanacaste , Parque Nacional Santa Rosa , 300m , SE-6-C, 23.iii-13. iv.1986 , D.H. Janzen & I.D. Gauld ( NHMUK ). Etymology . This species is named in honour of Winnie Hallwachs for her efforts to understand and preserve natural tropical ecosystems, in particular within Costa Rica .