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 crotonae Hansson sp.nov. ( Figs 358, 359 , 1069) Diagnosis (female). Antenna with solid clava (Fig. 1069); genal carina absent; mesoscutellum ( Fig. 358 ) with weak reticulation on median part, lateral parts with strong reticulation, meshes elongate, submedian grooves ±parallel, with a weak median groove in anterior half; dorsellum without median carina; propodeum ( Fig. 358 ) short, with strong reticulation without irregular carinae, callus with two setae; hind margin of hind coxa with a short longitudinal carina close to base; gaster ( Fig. 358 ) 2.6× as long as wide, medio-basal Gt1 with a carina shaped like an inverted U (as in Fig. 26 ), tergites with strong reticulation. Female holotype : length of body 2.0mm ( paratypes 1.4–1.9mm ). Scape yellowish-brown, pedicel brown, flagellum dark brown. Face below level of toruli golden-green, clypeus dark brown, frons and vertex metallic bluish-green. Mesoscutum and mesoscutellum metallic bluish-green, propodeum golden-green. Legs with fore and hind coxae golden-green, mid coxa black; trochanters yellowish-brown; femora dark brown with apex yellowish-brown; tibiae yellowish-brown; T1–3 yellowish-brown, T4 pale brown. Petiole black. Gaster 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; without genal carina. Vertex with strong reticulation. Mesoscutum with strong reticulation, meshes isodiametric on sidelobes, elongate on midlobe; midlobe without median groove, with six scattered adnotaular setae. Mesoscutellum with weak reticulation on median part, lateral parts with strong reticulation, meshes elongate; submedian grooves straight and parallel; with ten scattered setae over lateral parts. Dorsellum with strong reticulation, without median carina. Propodeum with a triangular median carina; with strong reticulation; callus with two setae. Fore and hind coxae with strong reticulation, mid coxa with weak reticulation; hind margin of hind coxa with a short longitudinal carina close to base. Fore wing with two setae on dorsal part in basal half of submarginal vein; speculum closed; costal setal row broken. Petiole very short, just a narrow band. Gaster elongate; medio-basal Gt 1 with a carina shaped like an inverted U; tergites with strong reticulation. Relative measurements: head length, dorsal view 23; head length, frontal view 35; POL 9; OOL 4.5; lateral ocellus diameter 4.5; head width 44.5; mouth width 16; malar space 11.5; eye length 22; scape length 17; scape width 4.5; pedicel+flagellum length 48; pedicel length 6.5; pedicel width, dorsal view 3.5; F1 length 7.5; F1 width 4; F2 length 8.5; F2 width 4.5; F3 length 7; F3 width 5; clava length 16; clava width 5.3; C3 length 6; spicule length 1.5; mesosoma length 53; mesosoma width 41.5; midlobe of mesoscutum length 21; mesoscutellum length 21; mesoscutellum width 20.5; median part of mesoscutellum width (measured medially) 10; median part of mesoscutellum, width in anterior part10; median part of mesoscutellum, width in posterior part 10.5; lateral part of mesoscutellum, width (measured medially) 4.5; dorsellum length 2; propodeum length 7; costal cell length 29; costal cell width (measured at widest part) 2; marginal vein length 26; stigmal vein length 10; gaster length 84; gaster width 32; Gt 2 length (measured medially) 8; Gt 4 length (measured medially) 11; Gt 7 length (measured medially) 12.5; Gt 7 width (measured at base) 16; longest cercal seta length 11; shortest cercal seta length 5. Male. Unknown. Hosts . Reared from leaf gall induced by unidenitified Cecidomyiidae on Croton schiedeanus ( Euphorbiaceae ). The gall is spherical, 3–7 mm in diameter, and detachable from the leaf. Distribution . Costa Rica . Material examined. Holotype ♀ COSTA RICA , Heredia , Tirimbina , ii.2004 , from spherical leaf gall on Croton Schn., Ley & Hanson (NHMUK) . Paratypes ( 3♀ , MZLU , NHMUK ) : 1♀ COSTA RICA, Heredia, Estación Biológica La Selva, 10º26’N , 84º01’W , 100-200m , 30-31.iii.2002 , swept, J.A. Azofeifa; 1♀ from same locality as previous but collected 28-29.ii.2008 ; 1♀ COSTA RICA , Limón , Puerto Viejo , Hotel Punta Cocles , 27.ii.1991 , J.S. Noyes. Etymology . Named after the host plant of the gall from which this species was reared.