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 nicoyae Hansson sp.nov. ( Figs 536, 537 , 847 ) Diagnosis (female). Antenna with distinct constriction between C1 and C2 ( Fig. 847 ); genal carina present; mesoscutellum ( Fig. 536 ) with strong reticulation on lateral parts, with weak reticulation on median part, meshes elongate, submedian grooves strong and ±parallel; dorsellum with median carina; propodeum ( Fig. 536 ) with strong carinae and strong reticulation, callus with two setae; petiole transverse with strong sculpture on dorsal part; gaster ( Fig. 536 ) 1.9× as long as wide, tergites with strong reticulation. Small species ( 1.6–1.8mm ), predominantly dark brown with metallic blue tinges ( Figs 536, 537 ). Female holotype : length of body 1.7mm ( paratypes 1.6–1.8mm ). Scape yellowish-brown, pedicel and flagellum dark brown. Head with frons including scrobes black with weak metallic tinges, clypeus dark brown; vertex dark brown to black. Mesoscutum dark brown with metallic tinges; mesoscutellum dark brown with metallic blue tinges; propodeum black with metallic tinges. Legs with coxae dark brown; trochanters yellowish-brown; femora brown with apex yellowish-brown; tibiae yellowish-brown to yellowish-white; T1–3 yellowish-white, T4 brown. Petiole black. Gaster with Gt1 dark brown with metallic purple tinges, Gt2-5 dark brown, Gt6-7 black; gonoplac black. Antenna with distinct constriction between C1 and C2. Frons with strong reticulation, clypeus smooth, antennal scrobes with weak reticulation; with genal carina reaching level of lower margin of eye. Vertex with strong reticulation outside ocellar triangle, with wrinkled sculpture inside ocellar triangle; with a carina between posterior ocelli in posterior part. Mesoscutum with strong reticulation, meshes isodiametric on sidelobes, elongate on midlobe; with six adnotaular setae in two rows. Mesoscutellum with strong reticulation on lateral parts, with weak reticulation on median part, meshes elongate, without median groove; submedian grooves strong and ±parallel; with five scattered setae over lateral parts. Dorsel- lum with strong sculpture, with median carina. Propodeum with a strong median carina that expands anteriorly and posteriorly; with strong irregular carinae and strong reticulation; callus with two setae. Fore and hind coxae with strong reticulation, mid coxa with weak reticulation. Fore wing with three setae on dorsal surface of submarginal vein; speculum closed; costal setal row unbroken. Petiole transverse with strong sculpture on dorsal part. Gaster ovate-elongate; tergites with strong reticulation. Relative measurements: head length, dorsal view 20; head length, frontal view 33; POL 9; OOL 5; lateral ocellus diameter 4.3; head width 43; mouth width 12; malar space 12; eye length 19.5; scape length 15.5; scape width 3.5; pedicel+flagellum length 48; pedicel length 6; pedicel width, dorsal view 3.2; F1 length 8; F1 width 4; F2 length 7.5; F2 width 3.5; F3 length 7; F3 width 3.5; clava length 17; clava width 4; C3 length 6; spicule length 1.5; mesosoma length 53; mesosoma width 36; midlobe of mesoscutum length 21; mesoscutellum length 20.5; mesoscutellum width 16; median part of mesoscutellum width (measured medially) 6; median part of mesoscutellum, width in anterior part 6; median part of mesoscutellum, width in posterior part 6; lateral part of mesoscutellum, width (measured medially) 3.5; dorsellum length 3.5; propodeum length 9; costal cell length 29; costal cell width (measured at widest part) 1.8; marginal vein length 25; stigmal vein length 8; gaster length 66; gaster width 35; Gt2 length (measured medially) 7; Gt4 length (measured medially) 13.5; Gt7 length (measured medially) 6; Gt7 width (measured at base) 9; longest cercal seta length 12; shortest cercal seta length 5. Male. Unknown. Hosts . Unknown. Distribution . Costa Rica . Material examined. Holotype ♀ COSTA RICA , Puntarenas , Reserva Privada Karen Mogensen , 9º52′N , 85º03′W , 305m , 17-18.ii.2011 , J.S. Noyes ( NHMUK ) . Paratypes ( 5♀ , MZLU , NHMUK ) : 1♀ with same label data as holotype; following from same locality as holotype but collected 11-21.ii.2005 ( 1♀ ), 14-15.ii.2005 ( 1♀ ), 23-24.ii.2013 ( 2♀ ) . Etymology . Named after type area, the Nicoya Peninsula.