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 tischeriae sp.nov. ( Figs 167–169 , 174 ) Diagnosis. Antenna flattened with all flagellomeres distinctly separated, scape widest at apex ( Fig. 174 ); frons with upper border distinct; pronotal collar with a carina along anterior margin ( Fig. 168 ); midlobe of mesoscutum with one pair of strong setae ( Fig. 168 ); fore wing hyaline with three infuscate bands, one along apical margin, one below stigmal vein and one below marginal vein ( Figs 167, 168 ); hind tarsus with T1&4 black, T2&3 white; length of body female 1.1–1.7mm , male 0.8–1.1mm . Female holotype : length of body 1.5mm . Antenna dark brown. Frons black with golden-green tinges. Vertex black with metallic purple tinges. Mesoscutum with midlobe golden and sidelobes metallic bluish-purple. Mesoscutellum golden with lateral and posterior margins metallic bluish-purple. Dorsellum golden with blue tinges. Propodeum black with metallic purple tinges, median part golden-green. Coxae, femora, mid and hind tibiae dark brown; fore tibia white with base brown; fore tarsus pale brown, mid and hind tarsi with T1&4 dark brown, T2&3 white. Fore wing hyaline with three infuscate bands, one along apical margin, one below stigmal vein and one below marginal vein; hind wing hyaline. Petiole dark brown. Gaster metallic purple. Antenna flattened, scape widest at apex. Frons with strong reticulation; frontofacial suture Vshaped; frons with upper border distinct. Vertex with strong reticulation in anterior one-half, with very weak reticulation to smooth in posterior one-half. Subtorular sutures present. Occipital margin rounded. Pronotal collar with a carina along anterior margin. Mesoscutum with strong reticulation; notauli distinct in anterior one-half; midlobe with one pair of strong setae attached in posterior part. Mesoscutellum convex, with weak reticulation. Dorsellum convex with weak reticulation. Propodeum smooth, without median carina; 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 ovate-elongate; Gt 1-2 smooth, remaining tergites with weak reticulation. Relative measurements: head length dorsal 19; head length frontal 23; head width 40; POL 7; OOL 5; lateral ocellus maximum width 2.5; eye length 19; malar space 5.5; mouth width 10; mesosoma length 47; mesosoma width 33; mesoscutellum length 18.5; mesoscutellum width 20; fore wing length 65; fore wing width 36; marginal vein length 40; postmarginal vein length 2; stigmal vein length 4.5; fore wing marginal fringe length 5; gaster length 55; gaster width 35. Variation in paratype material. Length of body: 1.1–1.7mm . Vertex with posterior one-half metallic purple, anterior one-half golden-green. Midlobe of mesoscutum golden-purple. Mesoscutellum golden-purple. Gaster golden-purple. Male ( Figs 167, 169 ). Length of body: 0.8–1.1mm . Vertex black with metallic purple tinges or golden-green; with strong reticulation in anterior one-half, with very weak reticulation to smooth in posterior one-half or with very weak reticulation throughout. Mesoscutum with midlobe golden and sidelobes metallic bluish-purple, or entirely golden-purple. Mesoscutellum golden with lateral and posterior margins metallic bluish-purple, or entirely golden-purple. Hosts. Reared from Tischeria sp. ( Lepidoptera : Tischeriidae ) on Cecropia insignis ( Cecropiaceae ). Distribution. Costa Rica . Material examined. Type material. Holotype ♀ “ COSTA RICA : Heredia , E.B. La Selva , 50-150m , 10º25’N , 84º01’W , 8.xi.1998 ; L.M. LaPierre , #98.180, ex Tischeria sp. on Cecropia insignis ” ( NHMUK ) . Paratypes ( 23♀ 7♂ , CNC , MZLU , MZUCR , NHMUK ) : 4♀ 1♂ with same label data as holotype; following from same locality and host as holotype but collected 21.ii.1998 ( 5♀ 1♂ ), ii.2000 ( 7♀ 3♂ ) ; 7♀ 1♂ “ COSTA RICA : Alajuela , vic. Boca Tapada de San Carlos , 250m , 10º40’N , 84º12’W , 20.iii.1999 , L.M. LaPierre , #99.121, ex Tischeria sp. on Cecropia insignis ” ; 1♂ from same locality and host as previous but collected 20.iv.1999 . Etymology. Named after host.