Closterocerus scitulus Hansson 2022, sp.nov.
Creators: name: Hansson, Christer
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Eulophidae
Closterocerus
Closterocerus scitulus

description: Closterocerus scitulus sp.nov.   
(Figs 152, 153, 215, 227, 236)  
 Diagnosis. Antenna flattened, scape widest at apex, all flagellomeres distinctly separated (Figs 153, 227); frontofacial suture straight (Fig. 236); pronotal collar with a weak carina along anterior margin (Fig. 152); midlobe of mesoscutum with one pair of strong setae (Figs 152, 153); fore wing with basal one-half weakly infuscate, almost hyaline, apical one-half strongly infuscate with two hyaline spots (Figs 152, 153, 215); hind tarsus completely pale (infuscate to white) (Fig. 153); length of body female 1.7–2.0mm.   
Female holotype: length of body 1.7mm.  
Antenna dark brown. Frons golden-green. Vertex metallic bluish-purple. Mesoscutum, mesoscutellum and dorsellum metallic bluish-purple. Propodeum metallic purple. Coxae and femora dark brown with metallic tinges; fore and mid tibiae white, hind tibia dark brown; tarsi white to slightly infuscate. Fore wing predominantly infuscate, weakly infuscate in basal one-half and darker in apical one-half, apical one-half with two large hyaline spots, hind wing hyaline. Petiole black with metallic tinges. Gaster golden-purple with metallic bluish-purple tinges.  
Antenna flattened, scape widest at apex. Frons with strong reticulation. Vertex with strong reticulation in anterior one-half, with very weak reticulation in posterior one-half. Frontofacial suture straight. Subtorular sutures present but short. Occipital margin rounded.  
Pronotal collar with a weak carina along anterior margin. Mesoscutum with strong reticulation; notauli distinct in anterior one-half; midlobe of mesoscutum with one pair of strong setae. Mesoscutellum convex with strong reticulation, smooth along hind margin. Dorsellum flat and almost smooth. Propodeum smooth, some parts with weak reticulation; 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 20; head length frontal 24; head width 43; POL 8; OOL 5; lateral ocellus maximum width 3,2; eye length 19; malar space 6; mouth width 11.5; mesosoma length 54; mesosoma width 36; mesoscutellum length 22; mesoscutellum width 21.5; fore wing length 89; fore wing width 60; marginal vein length 47; postmarginal vein length 6.5; stigmal vein length 7; fore wing marginal fringe length 3; gaster length 65; gaster width 33.  
Variation in paratype material. Length of body: 1.9–2.0mm. Fore wing predominantly infuscate, weakly infuscate in basal one-half and darker in apical one-half, apical one-half with two large hyaline spots, or with basal one-half hyaline.  
Male. Unknown.  
 Hosts. Unknown.   
 Distribution. Costa Rica.   
 Material examined.   
Type material. Holotype ♀ “ COSTA RICA: Cartago, La Cangreja, 1950m, 9˚48’N, 83˚58’W, iii-v.1992, P. Hanson ” (NHMUK). Paratypes (4♀, MZLU, MZUCR, NHMUK): 1♀ from same locality as holotype but collected vi-vii.1992; 1♀ “ COSTA RICA: San José, Cuericí, Sendero el Carbon, 5km al E. de Villa Mills, 2700m, 23.viii.1996, B. Gamboa, swept, LS 390100_500100, #8376”; 1♀ “ COSTA RICA: San José, 19km S, 1km W Empalme, Mirador Quetzal, 2600m, i.2000, P. Hanson ”; ♀ “ COSTA RICA: San José, San Gerardo de Dota, 20-21.ii.2013, J.S. Noyes, NHM (Ent) 2012-91”.  
 Etymology. From the Latin scitulus = beautiful, elegant.
description: Published as part of Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., pp. 1-137 in Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) (Oxford, England) 1 (1) on pages 71-72, DOI: 10.5281/zenodo.6464279