Closterocerus concinnus, 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 : 40-41

Closterocerus concinnus sp.nov.

( Figs 77, 78 )

Diagnosis. Antenna not flattened, scape narrow, white with weak infuscation ( Fig. 78 ); pronotal collar without a carina along anterior margin ( Fig. 77 ); mesoscutum and mesoscutellum with strong and dense reticulation ( Fig. 77 ); midlobe of mesoscutum with two pairs of setae ( Fig. 77 ); fore wing hyaline with area below stigmal vein weakly infuscate ( Fig. 77 ); legs white ( Fig. 78 ); length of body female 1.1–1.3mm.

Female holotype: length of body 1.3mm.

Antenna white with weak infuscations. Frons metallic bluish-green. Vertex metallic purple. Mesoscutum, mesoscutellum and propodeum metallic bluish-purple; dorsellum metallic purple. Legs white. Fore wing hyaline with area below stigmal vein with weak infuscation, hind wing hyaline. Petiole dark brown. Gaster with Gt 1 metallic purple, Gt 2-3 dark brown medially and metallic purple laterally, Gt 4,7 dark brown, Gt 5 metallic bluish-purple with median part dark brown, Gt 6 metallic bluish-purple.

Antenna not flattened, scape narrow. Frons with 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 strong reticulation; notauli distinct in anterior two-thirds; midlobe with two pairs of setae. Mesoscutellum flat, with strong reticulation. Dorsellum convex with strong reticulation. Propodeum with rather strong 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; tergites with strong reticulation.

Relative measurements: head length dorsal 14; head length frontal 17; head width 27; POL 4; OOL 2.5; lateral ocellus maximum width 2.5; eye length 15; malar space 2.5; mouth width 7; mesosoma length 29; mesosoma width 22; mesoscutellum length 12; mesoscutellum width 13.5; fore wing length 45; fore wing width 28; marginal vein length 21; postmarginal vein length 2; stigmal vein length 4.5; fore wing marginal fringe length 3; gaster length 34; gaster width 24.

Variation in paratype material. Length of body: 1.1–1.3mm. The paratypes are similar to the holotype.

Male. Unknown.

Hosts. Unknown.

Distribution. Dominican Republic.

Material examined.

Type material. Holotype ♀ “ DOMINICAN REPUBLIC: Prov. Pedernales, Sta Bahoruco, Alcoa Road , 530-750m, 14.vii.1990, L. Masner ” ( CNC) . Paratypes (2♀, CNC, NHMUK) : 1♀ “ DOMINICAN REPUBLIC: Sierra de Bahoruca , Alcoa Road, 18.i.1989, montane dry forest, L.Masner ” ; 1♀ “ DOMINICAN REPUBLIC: Barahonia , 4km N Paraiso, 150m, 22.iii.1991, L.Masner ” .

Etymology. From the Latin concinnus = elegant.

Figures

Figs 77–82. Closterocerus spp. C. concinnus – (77) habitus dorsal view, holotype ♀; (78) habitus lateral view, paratype ♀. C. crassicornis, holotype ♀ – (79) habitus dorsal view; (80) habitus lateral view. C. crinitus, holotype ♀ – (81) habitus dorsal view; (82) habitus lateral view.