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 aglaia sp.nov. ( Figs 14, 15 ) Diagnosis. Antenna ( Fig. 15 ) with scape and pedicel distinctly flattened, F1–3 weakly flattened, F4–5 not flattened, antenna dark brown with F5 white; occipital margin with a rounded edge; pronotal collar with a carina along anterior margin ( Fig. 14 ); mesoscutum ( Fig. 14 ) smooth and shiny, with weak traces of reticulation on sidelobes and on anterior part of midlobe, notauli distinct throughout, as deep parallel grooves in posterior two-thirds, midlobe with one pair of long and strong setae; mesoscutellum smooth and shiny ( Fig. 14 ); propodeum with two complete and parallel median carinae ( Fig. 14 ); fore wing hyaline with median one-third infuscate, speculum open below and towards base of wing ( Figs 14, 15 ); length of body female 1.7–1.8mm . Female holotype : length of body 1.7mm . Antenna dark brown with F5 white. Frons golden-green. Vertex metallic purple in front of anterior ocellus, metallic blue in posterior part. Mesoscutum with midlobe golden-purple with anterior one-third metallic purple, sidelobes metallic purple; mesoscutellum golden-purple, with lateral and posterior margins metallic bluish-purple; dorsellum golden-green; propodeum black with metallic tinges. Coxae and femora dark brown, hind femur with apex white; fore and mid tibiae white, hind tibia white with basal one-half dark brown; tarsi white. Fore wing hyaline with median one-third infuscate, hind wing hyaline. Petiole black with metallic tinges. Gaster with Gt 1 dark brown with metallic purple tinges, remaining tergites dark brown. Antenna with scape and pedicel distinctly flattened, F1–3 weakly flattened, F4–5 not flattened. Frons with strong reticulation. Vertex with very weak reticulation. Frontofacial suture V-shaped. Subtorular sutures present. Occipital margin with an edge. Pronotal collar with a carina along anterior margin. Mesoscutum smooth and shiny, with weak traces of reticulation on sidelobes and on anterior part of midlobe; notauli distinct throughout, as deep parallel grooves in posterior two-thirds; midlobe with one pair of long and strong setae. Mesoscutellum convex, smooth and shiny. Dorsellum convex, smooth and shiny. Propodeum smooth and shiny, with two complete and parallel median carinae; callus with two setae. Fore wing speculum open below and towards base of wing; with a stigmal hairline and with radial cell bare. Petiole very short, just a narrow band. Gaster ovate; Gt 1-2 smooth, Gt 3-7 with weak reticulation. Relative measurements: head length dorsal 20; head length frontal 25; head width 40; POL 6.5; OOL 4; lateral ocellus maximum width 3; eye length 21; malar space 5; mouth width 9.5; mesosoma length 50; mesosoma width 34; mesoscutellum length 20; mesoscutellum width 20.5; fore wing length 80; fore wing width 49; marginal vein length 40; postmarginal vein length 3; stigmal vein length 7; fore wing marginal fringe length 6; gaster length 56; gaster width 43. Variation in paratype material. Length of body: 1.8mm . The paratype is similar to the holotype . Male. Unknown. Hosts . Unknown. Distribution. Ecuador . Material examined. Type material. Holotype ♀ “ ECUADOR : Napo , 5km N of El Chaco , 2000m , 11.ii.1983 , Masner & Sharkey” ( CNC ) . Paratype 1♀ with same label data as holotype ( CNC ) . Etymology. From the Greek aglaia = splendour, beauty. Comments . The holotype lacks F 3–5 in the left antenna, and the paratype lacks F 1–5 in the right antenna.