Closterocerus masneri, 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 : 60

Closterocerus masneri sp.nov.

( Figs 122 , 123 )

Diagnosis. Antenna flattened, scape widest at apex, all flagellomeres distinctly separated ( Fig. 122 ); pronotal collar with a carina along anterior margin ( Fig. 123 ); midlobe of mesoscutum with three pairs of setae ( Fig. 123 ); petiole as long as wide; fore wing infuscate with base and a band close to apical margin hyaline ( Fig. 123 ); hind tarsus with T1 infuscate, T2–4 white ( Fig. 122 ); length of body female 1.5–1.7mm.

Female holotype: length of body 1.5mm.

Antenna dark brown to black. Frons golden-green with black parts above frontofacial suture. Vertex metallic purplish. Mesoscutum with midlobe black and sidelobes metallic bluish-purple. Mesoscutellum black with lateral and posterior margins metallic bluish-purple. Dorsellum metallic purple. Propodeum black. Coxae, femora, mid and hind tibia dark brown; fore tibia with basal one-half brown and apical one-half white; tarsi with T1 infuscate and T2–4 white. Fore wing infuscate with base and a band close to apical margin hyaline, hind wing hyaline. Petiole black. Gaster with Gt

1

metallic blue, remaining tergites dark brown with metallic purple tinges.

Antenna flattened, scape widest at apex. Frons with strong reticulation; frontofacial suture Vshaped; upper border of frons ±distinct. Vertex with strong reticulation in anterior one-half, smooth lateral to ocellar triangle. Subtorular sutures present. Occipital margin rounded.

Pronotal collar with a carina along anterior margin. Mesoscutum and mesoscutellum with strong reticulation; notauli narrow and complete; midlobe of mesoscutum with three pairs of setae. Dorsellum convex and smooth. Propodeum with weak reticulation, partly smooth, with an irregular median carina; callus with three setae. Fore wing speculum closed; with a stigmal hairline and with radial cell bare.

Petiole as long as wide. Gaster ovate; tergites mainly smooth, partly with very weak reticulation.

Relative measurements: head length dorsal 18; head length frontal 21; head width 35; POL 6; OOL 4.5; lateral ocellus maximum width 2.5; eye length 17.5; malar space 5.5; mouth width 9; mesosoma length 51; mesosoma width 30; mesoscutellum length 20; mesoscutellum width 18; fore wing length 75; fore wing width 43; marginal vein length 41; postmarginal vein length 2; stigmal vein length 5.5; fore wing marginal fringe length 5.5; gaster length 53; gaster width 35.

Variation in paratype material. Length of body: 1.7mm. The paratype is similar to the holotype.

Male. Unknown.

Hosts. Unknown.

Distribution. Ecuador, Venezuela.

Material examined.

Type material. Holotype ♀ “ ECUADOR: Napo, El Chaco , Feb. 1983, 2000m, Masner & Sharkey” ( CNC) . Paratype: 1♀ “ VENEZUELA: Merida, Mucuy nr Tabay , 2300m, L. Masner ”, “ 2.v.1981, cloud forest, screen sweeping” ( CNC) .

Etymology. Named after Lubomir Masner (CNC), one of the collectors of type material.

Figures

Figs 117–122. Closterocerus spp. C. lineatus – (117) habitus dorsal view, holotype ♀; (118) habitus lateral view, holotype ♀; (119) habitus dorsal view, paratype ♂; (120) habitus lateral view, paratype ♂. C. latiscapus, holotype ♀ – (121) habitus lateral view. C. masneri, paratype ♀ – (122) habitus lateral view.

Figs 123–129. Closterocerus spp. C.masneri, holotype ♀ – (123) habitus dorsal view. C. melanogrammus – (124) habitus lateral view, paratype ♀; (125) habitus dorsal view, holotype ♀; (126) habitus dorsal view, paratype ♀. C. nitidulus, paratype ♀ – (127) habitus dorsal view. C. mirandus – (128) habitus dorsal view, paratype ♀; (129) habitus lateral view, paratype ♀.