Closterocerus noyesi, Hansson, 2022

Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 64-65

Closterocerus noyesi sp.nov.

( Figs 130–132 )

Diagnosis. Antenna flattened, scape widest in apical part ( Fig. 131 ); pronotal collar without a carina along anterior margin ( Fig. 130 ); midlobe of mesoscutum with weak reticulation and with two pairs of long and strong setae ( Figs 130, 131 ); mesoscutellum with weak reticulation ( Fig. 130 ); fore wing hyaline with median and apical parts infuscate ( Figs 130–132 ); coxae and femora dark brown ( Fig. 131 ); length of body female 0.9–1.0mm, male 0.7–0.9mm.

Female holotype: length of body 0.9mm.

Antenna dark brown. Frons golden-green. Vertex metallic purple in anterior one-third, metallic blue in posterior two-thirds. Mesoscutum with midlobe golden-green with sides metallic blue, sidelobes metallic purple; mesoscutellum golden-green with lateral and posterior margins metallic purple; dorsellum metallic bluish-purple. Propodeum dark brown with metallic purple tinges. Legs with coxae and femora dark brown; fore and mid tibiae white, hind tibia dark brown; tarsi white. Fore wing hyaline with median and apical parts infuscate, hind wing hyaline. Petiole dark brown. Gt metallic bluish-purple, remaining tergites brown with metallic tinges.

1&6

Antenna flattened, scape widest in apical part. Frons with rather strong reticulation. Vertex with strong reticulation. Frontofacial suture V-shaped. Subtorular sutures present. Occipital margin rounded.

Pronotal collar without a carina along anterior margin. Mesoscutum with weak reticulation on midlobe, sidelobes with strong reticulation; notauli distinct in anterior two-thirds; midlobe of mesoscutum with two pairs of long and strong setae. Mesoscutellum with weak reticulation. Dorsellum flat and smooth. Propodeum smooth and shiny; callus with two setae. Fore wing with speculum closed; with a stigmal hairline and with radial cell bare.

Petiole very short, just a narrow band. Gaster short ovate; Gt smooth, Gt 3-5 with weak reticulation, Gt 6-7 with strong reticulation.

1-2

Relative measurements: head length dorsal 14; head length frontal 15.5; head width 25; POL 4; OOL 2.5; lateral ocellus maximum width 2.5; eye length 13.5; malar space 3; mouth width 6.5; mesosoma length 28; mesosoma width 19.5; mesoscutellum length 11.5; mesoscutellum width 11.5; fore wing length 42; fore wing width 24; marginal vein length 20.5; postmarginal vein length 2; stigmal vein length 4.5; fore wing marginal fringe length 5; gaster length 30; gaster width 20.

Variation in paratype material. Length of body: 0.9–1.0mm. Vertex with strong reticulation, or with very weak reticulation in posterior one-half. Midlobe of mesoscutum golden-green with sides metallic blue or golden-red. Mesoscutellum golden-green with lateral and posterior margins metallic purple, or golden-red. Fore tarsus white to infuscate.

Male ( Fig. 132 ). Length of body 0.7–0.9mm. Antennal flagellum less flattened than in female. Otherwise similar to female.

Hosts. Unknown.

Distribution. Costa Rica.

Material examined.

Type material. Holotype ♀ “ COSTA RICA: Limón, R.B. Hitoy-Cerere, 100m, 9˚40’N, 83˚02’W, 24-25. ii.2004, J.S. Noyes ” ( NHMUK) . Paratypes (4♀ 25♂, MZLU, MZUCR, NHMUK) : 1♀ “ COSTA RICA: Alajuela, 7km N Boca Tapada, Laguna Lagarto Lodge , 55m, 10˚41’N, 84˚11’W, 18-19.ii.2018, J.S. Noyes, NHM (Ent) 2018-87” ; 13♂ “ COSTA RICA: Heredia, E.B. La Selva , 75m, 10º26’N, 84º01’W, 23.ii.2006, J.S. Noyes ” ; 1♂ from same locality as previous but collected 27-28.ii.2003 ; 11♂ “ COSTA RICA: Limón, P. N. Braulio Carrillo, Estación Quebrada González, 10˚09’N, 83˚57’W, 450m, 25.ii.2005, J.S.Noyes ” ; 1♀ “ COSTA RICA: Puntarenas, R.P. Karen Mogensen, 305m, 9˚52’N, 85˚03’W, 19-20.ii.2016, J.S. Noyes ” ; 2♀ “ COSTA RICA: Puntarenas, P.N. Corcovado, Sirena, 5m, 8˚29’N, 83˚35’W, 19-20.ii.2004, J.S. Noyes ” .

Etymology. Named after John S. Noyes (NHMUK), the collector of the majority of type material of this species, and of material of other Closterocerus species treated here.

Figures

Figs 130–136. Closterocerus spp. C. noyesi – (130) habitus dorsal view, holotype ♀; (131) habitus lateral view, holotype ♀; (132) habitus lateral view, paratype ♂. C. oligothrix, holotype ♀ – (133) habitus dorsal view; (134) habitus lateral view. C. platycerus, paratype ♂ – (135) habitus lateral view. C. nitidulus, holotype ♀ – (136) habitus lateral view.