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 roupalae Hansson sp.nov. ( Figs 596, 597 , 1094) Diagnosis (female). Antenna with a weak constriction between C1 and C2 (Fig. 1094); genal carina present; mesoscutellum ( Fig. 596 ) with narrow median part with strong reticulation and a complete median groove, lateral parts rugose, submedian grooves indistinct; dorsellum with median carina; propodeum ( Fig. 596 ) with strong irregular carinae and strong reticulation, callus with six setae; petiole transverse with strong sculpture on dorsal part; gaster ( Fig. 596 ) 2.2× as long as wide, medio-basal Gt1 with longitudinal carinae laterally, tergites with strong reticulation. Female holotype : length of body 2.7mm . Scape yellowish-brown, pedicel and flagellum dark brown. Head black with blue-green tinges, clypeus dark brown, antennal scrobes black. Thoracic dorsum black with blue-green tinges. Legs with coxae black with blue tinges; trochanters brown; femora dark brown to black; fore and mid tibiae with basal half brown and apical half yellowish-brown, hind tibia yellowish-brown; T1–3 yellowish-brown, T4 brown. Petiole black. Gaster with Gt1 golden-green, Gt2-5 metallic purple dorsally, black with golden-green tinges laterally, Gt6-7 black with blue-green tinges; gonoplac black. Antenna with a weak 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 transverse irregular carinae. Mesoscutum with strong reticulation on sidelobes, meshes isodiametric, rugose on midlobe; midlobe with a wide median groove, with 16 scattered adnotaular setae. Mesoscutellum with narrow median part with strong reticulation and a complete median groove, lateral parts rugose with 15 scattered setae; submedian grooves indistinct. Dorsellum with strong sculpture, with median carina. Propodeum with a strong median carina that expands posteriorly; with strong irregular carinae and strong reticulation; callus with six 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 Gt1 with longitudinal carinae laterally; tergites with strong reticulation. Relative measurements: head length, dorsal view 30; head length, frontal view 50; POL 12; OOL 8; lateral ocellus diameter 5.5; head width 65; mouth width 22; malar space 19.5; eye length 27; scape length 25; scape width 5; pedicel+flagellum length 65; pedicel length 9; pedicel width, dorsal view 4; F1 length 11; F1 width 6; F2 length 11.5; F2 width 6; F3 length 10; F3 width 6; clava length 20; clava width 7; C3 length 6; spicule length 1; mesosoma length 83; mesosoma width 57; midlobe of mesoscutum length 30; mesoscutellum length 32; mesoscutellum width 29; median part of mesoscutellum width (measured medially) 7; median part of mesoscutellum, width in anterior part 7; median part of mesoscutellum, width in posterior part 10; lateral part of mesoscutellum, width (measured medially) 9; dorsellum length 4; propodeum length 12; costal cell length 40; costal cell width (measured at widest part) 3.5; marginal vein length 37; stigmal vein length 11; gaster length 107; gaster width 48; Gt2 length (measured medially) 10; Gt4 length (measured medially) 12; Gt7 length (measured medially) 20; Gt 7 width (measured at base) 17.5; longest cercal seta length 13; shortest cercal seta length 5. Male. Unknown. Hosts . Reared from a blister-like leaf gall induced by an unidentified Cecidomyiidae on Roupala sp. ( Proteaceae ). Distribution . Costa Rica . Material examined. Holotype ♀ COSTA RICA , Alajuela , Reserva Forestal Grecia , 1500m , 18.iii.1992 , from Roupala leaf gall, P. Hanson ( NHMUK ). Etymology . Named after the host plant of the gall from which this species was reared.