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 loboi Hansson sp.nov. ( Figs 146, 147 , 811 , 886 ) Diagnosis (female). Antenna with solid clava ( Fig. 811 ); genal carina present; mesoscutellum ( Fig. 146 ) with strong reticulation, with elongate meshes in median part and a weak median groove; hind coxa with a weak carina along posterior margin; petiole transverse with strong sculpture on dorsal part; gaster ( Fig. 146 ) 2.1× as long as wide, medio-basal Gt 1 with a short rectangular incision. Female holotype : length of body 1.8mm ( paratype 1.5mm ). Scape yellowish-brown, pedicel brown, flagellum dark brown. Head golden-green with blue tinges. scrobes black, clypeus dark brown. Thoracic dorsum golden-green with blue tinges. Legs with fore and mid coxae black, hind coxa metallic bluish-green; trochanters pale brown; femora black with apex yellowish-brown; tibiae yellowish-brown; T1–3 yellowish-brown, T4 brown. Petiole black. Gaster with Gt 1 golden-green, Gt 2-4 black with metallic purple tinges, Gt 5-7 metallic bluish-green; 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 seven setae in ±one row close to notauli. Mesoscutellum with strong reticulation, meshes elongate, with a weak median groove; submedian grooves weak, running parallel with and close to lateral margins of mesoscutellum. Dorsellum with strong sculpture. Propodeum with triangular median carina, concave; callus with two setae. Fore and hind coxae with strong reticulation, mid coxa with weak reticulation; hind coxa with a weak carina along posterior margin. Fore wing with five setae on dorsal surface of submarginal vein; speculum open below; costal setal row unbroken. Petiole transverse with strong sculpture on dorsal part. Gaster ovate; medio-basal Gt 1 with a short rectangular incision, with weak reticulation and shiny, remaining tergites with strong reticulation. Relative measurements: head length, dorsal view 21; head length, frontal view 35; POL 11; OOL 5; lateral ocellus diameter 3; head width 44; mouth width 14; malar space 12.5; eye length 19; scape length 14; scape width 4; pedicel+flagellum length 34; pedicel length 6; pedi- cel width, dorsal view 3.5; F1 length 4.5; F1 width 3.5; F2 length 4.5; F2 width 4; F3 length 4.5; F3 width 4; clava length 12; clava width 5.2; C3 length 5; spicule length 2; mesosoma length 55; mesosoma width 38; midlobe of mesoscutum length 21; mesoscutellum length 21; mesoscutellum width 21; median part of mesoscutellum width (measured medially) 11; median part of mesoscutellum, width in anterior part 8.5; median part of mesoscutellum, width in posterior part 13; lateral part of mesoscutellum, width (measured medially) 4; dorsellum length 2; propodeum length 8; costal cell length 30; costal cell width (measured at widest part) 2; marginal vein length 22; stigmal vein length 8; gaster length 73; gaster width 35; Gt 2 length (measured medially) 5; Gt 4 length (measured medially) 22; Gt 7 length (measured medially) 7; Gt 7 width (measured at base) 11; longest cercal seta length 9; shortest cercal seta length 5. Male. Unknown. Hosts . Reared from fruit galls on Cissus verticillata ( Vitaceae ), from which Cecidomyiidae also emerged. Distribution . Costa Rica . Material examined. Holotype ♀ COSTA RICA , San José , San Pedro de Montes de Oca , 1100m , x.1997 , ex fruit of Cissus verticillatus, P. Hanson (NHMUK) . Paratype : 1♀ COSTA RICA , Guanacaste , Parque Nacional Santa Rosa , 300m , SE-6-C, 7-28.xii.1985 , D.H. Janzen & I.D. Gauld ( NHMUK ) . Etymology . Named in honour of Jorge Lobo, professor in the School of Biology, University of Costa Rica , specialist in population genetics of plants and bees.