Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str. Author Hansson, Christer text Taxonomic Monographs on Neotropical Hymenoptera 2022 Oxford, England 2022-04-28 1 1 1 137 http://dx.doi.org/10.5281/zenodo.6464278 journal article 10.5281/zenodo.6464279 978-1-7397467-0-4 2754-9844 FE033A11-ACCB-4C6D-B185-63420F8CA79B Closterocerus fulgens sp.nov. ( Figs 104, 105 ) Diagnosis. Antenna pale brown, F1 enlarged and slightly flattened, F2–5 not flattened, scape narrow ( Fig. 105 ); pronotal collar without a carina along anterior margin ( Fig. 104 ); thoracic dorsum smooth and shiny ( Fig. 104 ); midlobe of mesoscutum with one pair strong setae; fore wing hyaline with median ¼ infuscate ( Figs 104, 105 ); legs white ( Fig. 105 ); length of body female 0.8–0.9mm . Female holotype : length of body 0.9mm . Antenna pale brown. Frons dark brown with golden tinges. Vertex metallic bluish-purple. Mesoscutum golden-purple. Mesoscutellum golden-green with anterior one-third golden-purple. Dorsellum and propodeum golden-green. Legs white. Fore wing hyaline with median ¼ infuscate, hind wing hyaline. Petiole dark brown. Gaster with Gt 1 metallic bluish-purple, remaining tergites golden-purple. Antenna with F1 enlarged and slightly flattened, F2–5 and pedicel not flattened, scape narrow. Frons with weak reticulation. Vertex smooth and shiny. Frontofacial suture V-shaped. Subtorular sutures present. Occipital margin rounded. Pronotal collar without a carina along anterior margin. Mesoscutum smooth and shiny; notauli distinct in anterior one-third; midlobe with one pair of strong setae. Mesoscutellum convex, smooth and shiny. Dorsellum flat and smooth. Propodeum smooth and shiny; callus with two setae. Fore wing speculum closed; with a stigmal hairline and with radial cell bare. Petiole very short, just a narrow band. Gaster short ovate; all tergites smooth. Relative measurements: head length dorsal 10; head length frontal 17; head width 21.5; POL not measurable; OOL not measurable; lateral ocellus maximum width 2; eye length 13.5; malar space 3.5; mouth width 7; mesosoma length 25; mesosoma width 18.5; mesoscutellum length 10.5; mesoscutellum width 11; fore wing length 43; fore wing width 23; marginal vein length 19.5; postmarginal vein length 2; stigmal vein length 4; fore wing marginal fringe length 7; gaster length 33; gaster width 20. Variation in paratype material. Length of body: 0.8mm . The paratype is similar to the holotype . Male. Unknown. Hosts . Unknown. Distribution. Costa Rica . Material examined. Type material. Holotype ♀ “ COSTA RICA : Limón , R.B. Hitoy-Cerere , 100m , 9˚40’N, 83˚02’W, 20-22. ii.2006 , J.S. Noyes ” ( NHMUK ) . Paratype 1♀ from same locality as holotype but collected 24-25.ii.2004 ( NHMUK ) . Etymology. From the Latin fulgens = shining, referring to shiny thoracic dorsum.