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 melanogrammus sp.nov. ( Figs 124–126 ) Diagnosis. Antenna flattened, scape widest at apex ( Fig. 124 ); pronotal collar without a carina along anterior margin ( Figs 125, 126 ); midlobe of mesoscutum with four pairs of setae ( Fig. 125 ); midlobe of mesoscutum and median part of mesoscutellum black with golden-purple tinges ( Fig. 125 ); fore wing infuscate with two hyaline areas, one below marginal vein and one subapical ( Figs 124, 126 ); hind tarsus with T1–3 white, T4 dark brown ( Fig. 124 ); length of body female 1.1–1.3mm . Female holotype : length of body 1.3mm . Antenna dark brown. Frons golden-green. Vertex metallic bluish-purple in anterior one-half, metallic blue in posterior one-half. Mesoscutum with midlobe black with golden-purple tinges, sidelobes metallic bluish-purple. Mesoscutellum black with golden-purple tinges, lateral parts metallic bluish-purple. Dorsellum metallic purple. Propodeum golden-purple. Coxae, femora, mid and hind tibiae dark brown; fore tibia with basal one-half dark brown and apical one-half infuscate; fore tarsus infuscate, mid and hind tarsi with T1–3 white and T4 dark brown. Fore wing infuscate with two hyaline areas, one below marginal vein and subapical; hind wing hyaline. Petiole dark brown. Gaster with Gt 1,6 metallic purple, Gt 2 dark brown with sides metallic purple, remaining tergites dark brown with metallic tinges. Antenna flattened, scape widest at apex. Frons with strong reticulation; frontofacial suture V-shaped. Vertex with strong reticulation. Subtorular sutures present. Occipital margin rounded. Pronotal collar without a carina along anterior margin. Mesoscutum and mesoscutellum with strong reticulation; notauli distinct in anterior one-half; midlobe of mesoscutum with four pairs of setae. Dorsellum convex with weak reticulation. Propodeum smooth, without median carina; callus with two setae. Fore wing speculum closed; with a stigmal hairline and bare radial cell. Petiole very short, just a narrow band. Gaster oval-shaped; Gt 1 smooth, remaining tergites with very weak reticulation. Relative measurements: head length dorsal 16; head length frontal 19; head width 33; POL 6; OOL 3; lateral ocellus maximum width 2,2; eye length 13.5; malar space 6.5; mouth width 9; mesosoma length 46; mesosoma width 32; mesoscutellum length 17; mesoscutellum width 20; fore wing length 68; fore wing width 40; marginal vein length 36; postmarginal vein length 2; stigmal vein length 6; fore wing marginal fringe length 4; gaster length 50; gaster width 31. Variation in paratype material. Length of body 1.1–1.3mm . The paratypes are similar to the holotype . Male. Unknown. Hosts . Unknown. Distribution. Mexico . Material examined. Type material. Holotype ♀ “ MEXICO : Michoacan , 6mi. N Cheran , 8.vii.1985 , J.B. Woolley , 85/034” ( TAMU ) . Paratypes ( 9♀ , MZLU , TAMU ) : 7♀ with same label data as holotype ; 2♀ “ MEXICO : Michoacan , 2mi. S Carapan , 6.vii.1985 , J.B. Woolley , 85/031” . Etymology. From the Greek melanos = black and gramme = line, stripe, referring to black median parts of mesoscutum and mesoscutellum.