Closterocerus zurquiensis, 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 : 85-86

Closterocerus zurquiensis sp.nov.

( Figs 192–194 )

Diagnosis. Antenna flattened with all flagellomeres distinctly separated, scape widest at apex ( Figs 193, 194 ); frons with upper margin distinct ( Fig. 194 ); pronotal collar with a carina along anterior margin ( Fig. 192 ); midlobe of mesoscutum with two pairs of strong setae ( Fig. 192 ); fore wing hyaline with an infuscate band below stigmal vein ( Fig. 192 ); stigmal vein elongate, 2.0× as long as wide ( Fig. 192 ); hind tarsus white ( Fig. 193 ); petiole transverse with strong sculpture on dorsal surface; length of body female 1.3–1.8mm.

Female holotype: length of body 1.4mm.

Antenna dark brown. Head with frons golden-green; vertex metallic purple. Mesoscutum and mesoscutellum metallic bluish-green with purple tinges. Dorsellum and propodeum metallic bluish-green. Coxae dark brown; fore and mid legs with femora infuscate, tibiae and tarsi white; hind femur and tibia dark brown with apex white, tarsus white. Fore wing hyaline with an infuscate band below stigmal vein, hind wing hyaline. Petiole golden-green. Gaster with Gt 1 metallic bluish-purple, remaining tergites dark brown with golden-purple tinges.

Antenna flattened, scape widest at apex. Frons and vertex with strong reticulation. Frontofacial suture V-shaped; frons with upper margin distinct. Subtorular sutures absent. Occipital margin rounded.

Pronotal collar with a sharp carina along anterior margin. Mesoscutum with strong reticulation; notauli distinct in anterior one-third; midlobe with two pairs of strong setae. Mesoscutellum convex, with strong reticulation. Dorsellum convex, with strong reticulation, smooth medially. Propodeum smooth without median carina; callus with two setae. Fore wing speculum closed; without a stigmal hairline and with radial cell ±bare.

Petiole transverse with strong sculpture on dorsal part. Gaster ovate; Gt 1 smooth, remaining tergites with very weak reticulation.

Relative measurements: head length dorsal 17; head length frontal 22; head width 35; POL 6.5; OOL 3.5; lateral ocellus maximum width 3; eye length 18; malar space 5; mouth width 9.5; mesosoma length 45; mesosoma width 29; mesoscutellum length 17; mesoscutellum width 17; fore wing length 72; fore wing width 43; marginal vein length 38; postmarginal vein length 4; stigmal vein length 6; fore wing marginal fringe length 3; gaster length 42; gaster width 31.

Variation in paratype material. Length of body: 1.3–1.8mm. All femora infuscate to dark brown; hind tibia dark brown with apex white, to entirely white.

Male. Unknown.

Hosts. Unknown.

Distribution. Costa Rica.

Material examined.

Type material. Holotype ♀ 1♀ COSTA RICA: San José, Zurqui de Moravia , 1600m, 10˚3’N, 84˚0’W, i.1996, P. Hanson ” ( NHMUK) . Paratypes (2♀, MZLU, MZUCR) : from same locality as holotype but collected iv.1995 (1♀) , xii.1995 (1♀) .

Etymology. Named after the type locality.

Figures

Figs 189–194. Closterocerus spp. C. woolleyi, holotype ♀ – (189) habitus dorsal view; (190) habitus lateral view; (191) vertex. C. zurquiensis, ♀ – (192) habitus dorsal view, paratype; (193) habitus lateral view, holotype; (194) head frontal view, paratype.