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 folata Hansson sp.nov. ( Figs 396, 397 , 1072) Diagnosis (female). Antennal clava solid (Fig. 1072); genal carina present; mesoscutellum ( Fig. 396 ) with very weak reticulation on median part and with a weak ±complete median groove, lateral parts with strong reticulation, meshes elongate; submedian grooves distinct, almost straight and diverging towards posterior part; dorsellum with median carina; propodeum ( Fig. 396 ) with strong reticulation, callus with three setae; petiole very short, just a narrow band; gaster ( Fig. 396 ) 2.9× as long as wide, medio-basal Gt1 with longitudinal carinae laterally, gastral tergites with strong reticulation. Female holotype : length of body 1.8mm . Scape yellowish-brown, pedicel brown, and flagellum dark brown. Head golden-green, scrobes and parts below level of toruli duller in colour and clypeus dark brown. Mesosoma dark brown with metallic tinges. Coxae, trochanters and femora dark brown, tibiae yellowish-brown; fore tarsus pale brown, mid and hind tarsi with T1–3 yellowish-brown, T4 pale brown. Petiole dark brown. Gaster dark brown, Gt1 with metallic tinges; gonoplac black. Antennal clava solid. Face below level of toruli with weak reticulation, clypeus smooth, frons with strong reticulation, scrobes with weak reticulation; with a weak genal carina reaching about half-way up to level of lower margin of eyes. Vertex with strong reticulation outside ocellar triangle, with wrinkled sculpture inside ocellar triangle; occipital margin rounded. Mesoscutum with strong reticulation, meshes isodiametric on sidelobes, elongate on midlobe; midlobe without a median groove, with eight scattered adnotaular setae. Mesoscutellum with very weak reticulation on median part and with a weak ±complete median groove, lateral parts with strong reticulation, meshes elongate; submedian grooves distinct, almost straight and diverging towards posterior part; with six setae scattered over lateral parts. Dorsellum with weak sculpture, shiny, with median carina. Propodeum with a strong and wide median carina, surface predominantly with strong reticulation; callus with three setae. Fore and mid coxae with weak reticulation, hind coxa with strong reticulation. Fore wing with four setae on dorsal surface of submarginal vein; speculum closed; costal setal row broken. Petiole very short, just a narrow band. Gaster elongate; medio-basal Gt 1 with longitudinal carinae laterally; tergites with rather strong reticulation. Relative measurements: head length, dorsal view 20; head length, frontal view 31.5; POL 8.5; OOL 4.5; lateral ocellus diameter 3.5; head width 40.5; mouth width 13; malar space 9.5; eye length 19.5; scape length 13; scape width 3.5; pedicel+flagellum length 41; pedicel length 6; pedicel width, dorsal view 3.5; F1 length 6; F1 width 4; F2 length 6.5; F2 width 4; F3 length 6.5; F3 width 4.5; clava length 15; clava width 5; C3 length 4.5; spicule length 1; mesosoma length 49; mesosoma width 35; midlobe of mesoscutum length 18; mesoscutellum length 19; mesoscutellum width 17; median part of mesoscutellum width (measured medially) 7; median part of mesoscutellum, width in anterior part 6.5; median part of mesoscutellum, width in posterior part 8.5; lateral part of mesoscutellum, width (measured medially) 3.5; dorsellum length 2.5; propodeum length 7; costal cell length 27; costal cell width (measured at widest part) 2; marginal vein length 25; stigmal vein length 8; gaster length 81; gaster width 28; Gt 2 length (measured medially) 6.5; Gt 4 length (measured medially) 13; Gt 7 length (measured medially) 12; Gt 7 width (measured at base) 8.5; longest cercal seta length 12; shortest cercal seta length 5. Male. Unknown. Hosts . Unknown. Distribution. Costa Rica . Material examined. Holotype ♀ COSTA RICA , Guanacaste , Parque Nacional Guancaste , Estación Maritza , 700m , 10º58’N , 85º29’W , 21.ii.2005 , J.S. Noyes ( NHMUK ).