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 apiculus sp.nov. ( Figs 36–39 ) Diagnosis. Antenna dark brown to black with F5 white, scape widest at apex, F1–3 flattened, F4 moderately flattened, F5 not flattened and long and narrow ( Fig. 37 ); pronotal collar without a carina along anterior margin ( Figs 36, 38 ); midlobe of mesoscutum with two pairs of ±strong setae ( Fig. 36 ); fore wing hyaline with apical margin and parts below stigmal vein weakly infuscate ( Figs 36, 37 ); hind tarsus white to yellowish ( Figs 37, 39 ); length of body female 0.8–1.2mm , male 0.7–0.9mm . Female holotype : length of body 0.9mm . Antenna dark brown with F5 white. Frons with lower one-half dark brown, upper one-half metallic pale blue. Vertex metallic bluish-purple. Mesoscutum metallic bluish-purple; mesoscutellum golden-green with lateral and posterior margins metallic purple; dorsellum and propodeum metallic purple. Legs with coxae dark brown; fore femur infuscate, mid and hind femora dark brown; fore and mid tibiae white, hind tibia dark brown; tarsi white to yellowish. Fore wing hyaline with apical margin and parts below stigmal vein weakly infuscate; hind wing hyaline. Petiole dark brown with metallic purple tinges. Gaster metallic bluish-purple with a large dark brown spot medially.Antenna predominantly flattened, except F5 that is narrow, scape widest at apex. Frons and vertex with strong reticulation. Frontofacial suture V-shaped. Subtorular sutures present. Occipital margin rounded. Pronotal collar without a carina along anterior margin. Mesoscutum with strong reticulation; notauli distinct in anterior two-thirds; midlobe with two pairs of ±strong setae. Mesoscutellum with strong reticulation. Dorsellum convex and predominantly smooth. Propodeum smooth and shiny; propodeal 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; Gt 1-3 smooth medially and with strong reticulation laterally, remaining tergites with strong reticulation. Relative measurements: head length dorsal 12.5; head length frontal 17; head width 26.5; POL 4; OOL 2; lateral ocellus maximum width 2; eye length 14; malar space 2.5; mouth width 7.5; mesosoma length 28; mesosoma width 27; mesoscutellum length 11; mesoscutellum width 12.5; fore wing length 44; fore wing width 26; marginal vein length 21.5; postmarginal vein length 1.5; stigmal vein length 5; fore wing marginal fringe length 5; gaster length 31; gaster width 22. Variation in paratype material. Length of body: 0.8–1.2mm . Vertex completely metallic purple or metallic purple in anterior one-half and metallic blue in posterior one-half. Mesoscutum metallic bluish-purple, or midlobe golden-green and sidelobes metallic purple. Mesoscutellum golden with lateral and posterior margins metallic blue, or golden-green with lateral and posterior margins metallic purple. Male ( Figs 38, 39 ). Length of body: 0.7–0.9mm . Scape not expanded at apex, dorsal and ventral margins ±parallel. Mesoscutum with midlobe golden-green or metallic bluish-green, sidelobes metallic bluish-purple. Mesoscutellum golden. Hind femur and hind tibia dark brown with apical one-third white. Otherwise as in female. Hosts . Unknown. Distribution. Costa Rica , Mexico , Venezuela . Material examined. Type material. Holotype ♀ “ COSTA RICA : Puntarenas , San Vito , Las Cruces , 8º46’N , 82º57’W , 1300m , 15-16.ii.2006 , J.S. Noyes ” ( NHMUK ) . Paratypes ( 97♀ 27♂ , CNC , MZLU , MZUCR , NHMUK , TAMU ) : 1♀ with same label data as holotype ; 1♀ “ COSTA RICA : Puntarenas , R.P. Karen Mogensen , 9º52′N 85º03′W , 305m , 11-21.ii.2005 , C. Hansson ”; following from same locality as previous but collected 14-15.ii.2005 ( 9♀ ), 17-18.ii.2011 ( 8♀ 3♂ ), 23-24.ii.2013 ( 3♀ ), 19-20.ii.2016 ( 13♀ 4♂ ), 11-12.ii.2018 ( 11♀ 6♂ ) ; 8♀ 3♂ “ COSTA RICA : Puntarenas , P.N. Corcovado , Sirena , 8º29’N , 83º35’W , 5m , 19-20.ii.2004 , J.S. Noyes ” ; 14♀ 7♂ “ COSTA RICA : Puntarenas , P.N. Piedras Blancas , 100m , 8˚43’N, 83˚13’W, 13-14.ii.2012 , J.S. Noyes , NHM (Ent) 2012- 91” ; 3♀ “ COSTA RICA : Alajuela , P.N. Arenal , Send. Ceibo , 10º27’N , 84º41’W , 22-23.ii.2016 , J.S. Noyes , NHM (Ent) 2016-79” ; 2♀ “ COSTA RICA : Heredia , E.B. La Selva , 75m , 10º26’N , 84º01’W , 27-28.ii.2003 , J.S. Noyes ” ; 4♀ from same locality as previous but collected 22-24.ii.2012 ; 2♀ 1♂ “ COSTA RICA : Limón , R.B. Hitoy-Cerere , 100m , 9˚40’N, 83˚02’W, 20-22.ii.2006 , J.S. Noyes ” ; 12♀ 3♂ “ COSTA RICA : Turrialba , CATIE , Reventazon , 4.ix.1986 , L. Masner ” ; 1♀ “ COSTA RICA : Manuel Antonio N.P. 23-28.viii.1986 , L. Masner ” . 1♀ “ MEXICO , Chiapas , 6mi N Berriozabal , 4000´[ 1219m ], 8-9.viii.1990 , J.B. Woolley , 90/056” . 4♀ “ VENEZUELA : Araqua , Rancho Grande , 3650’ [ 1113m ], 28.v.1990 , J.B. Woolley , 90/003” . Etymology. From the Latin apiculus = apex, apical, referring to the white apical flagellomere.