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 weinmanniae Hansson sp.nov. ( Figs 614, 615 , 871 ) Diagnosis (female). Antennal clava with distinct constriction between C1 and C2 ( Fig. 871 ); genal carina present; mesoscutellum ( Fig. 614 ) with median part with weak reticulation and with a very weak median groove in anterior half, lateral parts with very strong reticulation with numerous white setae all over; dorsellum with median carina; propodeum ( Fig. 614 ) with strong reticulation and some irregular carinae, callus with three setae; gaster ( Fig. 614 ) 3.5× as long as wide, medio-basal Gt1 with longitudinal carinae laterally, tergites with very strong and large-meshed reticulation, Gt7 1.7× as long as width at base. Female holotype : length of body 3.5mm . Scape yellowish-brown, pedicel brown, flagellum dark brown. Head golden-green, frons below eyes golden-red, clypeus dark brown. Thoracic dorsum golden-green. Legs with fore and hind coxae metallic bluish-green, mid coxa black with golden-green tinges; trochanters, femora and tibiae yellowish-brown; T1–3 yellowish-brown, T4 brown. Petiole black. Gaster with Gt1 metallic bluish-green, remaining tergites golden-green; gonoplac yellowish-brown. Antenna with distinct constriction between C1 and C2. Face below level of toruli with weak reticulation, clypeus smooth, frons rugose and with strong reticulation, antennal scrobes with weak reticulation; with genal carina. Vertex with strong reticulation outside ocellar triangle, with wrinkled sculpture and strong reticulation inside ocellar triangle. Occipital margin with a carina behind ocellar triangle. Mesoscutum with strong reticulation, meshes isodiametric on sidelobes, elongate on midlobe, midlobe ±rugose on part close to notauli; midlobe with a complete median groove, with 25 scattered setae on rugose parts. Mesoscutellum with median part with weak reticulation and shiny, lateral parts with strong reticulation, meshes elongate; submedian grooves subdivided by carinae, curved and diverging towards both anterior and posterior parts; with 25 setae scattered over lateral parts. Dorsellum with strong reticulation, with median carina. Propodeum with a strong median carina that expands in posterior part; with strong irregular carinae and reticulation; callus with three setae. Fore and hind coxae with strong reticulation, mid coxa with weak reticulation. Fore wing with 6&7 setae on dorsal surface of submarginal vein; speculum open below; costal setal row unbroken. Petiole very short, just a narrow band. Gaster elongate; medio-basal Gt 1 with longitudinal carinae laterally; tergites with very strong and large-meshed reticulation. Relative measurements: head length, dorsal view 31; head length, frontal view 47; POL 13; OOL 7; lateral ocellus diameter 6; head width 62; mouth width 22; malar space 18; eye length 27; scape length 25; scape width 5; pedicel+flagellum length 69; pedicel length 7.5; pedicel width, dorsal view 4.5; F1 length 11; F1 width 5; F2 length 13.5; F2 width 5; F3 length 10; F3 width 5; clava length 21; clava width 6.5; C3 length 6.5; spicule length 1; mesosoma length 90; mesosoma width 60; midlobe of mesoscutum length 33; mesoscutellum length 36; mesoscutellum width 26; median part of mesoscutellum width (measured medially) 7.5; median part of mesoscutellum, width in anterior part10; median part of mesoscutellum, width in posterior part 10; lateral part of mesoscutellum, width (measured medially) 7.5; dorsellum length 5.5; propodeum length 12.5; costal cell length 47; costal cell width (measured at widest part) 3.5; marginal vein length 42; stigmal vein length 16; gaster length 162; gaster width 46; Gt 2 length (measured medially) 11; Gt 4 length (measured medially) 22; Gt 7 length (measured medially) 34; Gt 7 width (measured at base) 20; longest cercal seta length 15; shortest cercal seta length 8. Male. Unknown. Hosts . Reared from a stem gall (stem swelling) induced by an unidentified Cecidomyiidae on Weinmannia sp. ( Cunoniaceae ). Distribution . Costa Rica . Material examined. Holotype ♀ COSTA RICA , Cartago , 4km NE Cañon , Genesis II, 2300m , 5.ii.2013 , from Weinmannia stem gall, M. Gates ( NHMUK ). Etymology . Named after the host plant of the gall from which this species was reared.