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 zurquiensis sp.nov. ( Figs 192–194 ) Diagnosis. Antenna flattened with all flagellomeres distinctly separated, scape widest at apex ( Figs 193, 194 ); frons with upper margin distinct ( Fig. 194 ); pronotal collar with a carina along anterior margin ( Fig. 192 ); midlobe of mesoscutum with two pairs of strong setae ( Fig. 192 ); fore wing hyaline with an infuscate band below stigmal vein ( Fig. 192 ); stigmal vein elongate, 2.0× as long as wide ( Fig. 192 ); hind tarsus white ( Fig. 193 ); petiole transverse with strong sculpture on dorsal surface; length of body female 1.3–1.8mm . Female holotype : length of body 1.4mm . Antenna dark brown. Head with frons golden-green; vertex metallic purple. Mesoscutum and mesoscutellum metallic bluish-green with purple tinges. Dorsellum and propodeum metallic bluish-green. Coxae dark brown; fore and mid legs with femora infuscate, tibiae and tarsi white; hind femur and tibia dark brown with apex white, tarsus white. Fore wing hyaline with an infuscate band below stigmal vein, hind wing hyaline. Petiole golden-green. Gaster with Gt 1 metallic bluish-purple, remaining tergites dark brown with golden-purple tinges. Antenna flattened, scape widest at apex. Frons and vertex with strong reticulation. Frontofacial suture V-shaped; frons with upper margin distinct. Subtorular sutures absent. Occipital margin rounded. Pronotal collar with a sharp carina along anterior margin. Mesoscutum with strong reticulation; notauli distinct in anterior one-third; midlobe with two pairs of strong setae. Mesoscutellum convex, with strong reticulation. Dorsellum convex, with strong reticulation, smooth medially. Propodeum smooth without median carina; callus with two setae. Fore wing speculum closed; without a stigmal hairline and with radial cell ±bare. Petiole transverse with strong sculpture on dorsal part. Gaster ovate; Gt 1 smooth, remaining tergites with very weak reticulation. Relative measurements: head length dorsal 17; head length frontal 22; head width 35; POL 6.5; OOL 3.5; lateral ocellus maximum width 3; eye length 18; malar space 5; mouth width 9.5; mesosoma length 45; mesosoma width 29; mesoscutellum length 17; mesoscutellum width 17; fore wing length 72; fore wing width 43; marginal vein length 38; postmarginal vein length 4; stigmal vein length 6; fore wing marginal fringe length 3; gaster length 42; gaster width 31. Variation in paratype material. Length of body: 1.3–1.8mm . All femora infuscate to dark brown; hind tibia dark brown with apex white, to entirely white. Male. Unknown. Hosts . Unknown. Distribution. Costa Rica . Material examined. Type material. Holotype ♀ 1♀ COSTA RICA : San José , Zurqui de Moravia , 1600m , 10˚3’N, 84˚0’W, i.1996 , P. Hanson ” ( NHMUK ) . Paratypes ( 2♀ , MZLU , MZUCR ) : from same locality as holotype but collected iv.1995 ( 1♀ ) , xii.1995 ( 1♀ ) . Etymology. Named after the type locality.