Closterocerus setosus, 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 : 73

Closterocerus setosus sp.nov.

( Figs 154, 155 )

Diagnosis. Antenna flattened, scape widest at apex, all flagellomeres distinctly separated ( Fig. 155 ); temples with scattered setae ( Fig. 154 ); pronotal collar with a strong carina along anterior margin ( Fig. 154 ); midlobe of mesoscutum with six pairs of setae ( Fig. 154 ); fore wing infuscate with a hyaline band close to apical margin, speculum absent – this part completely setose ( Fig. 154 ); petiole as long as wide with strong sculpture on dorsal surface; length of body female 2.2mm.

Female holotype: length of body 2.2mm.

Antenna dark brown to black. Frons golden-green, metallic bluish-purple in upper part. Vertex metallic bluish-green. Mesoscutum with midlobe black, sidelobes metallic bluish-green. Mesoscutellum black with sides metallic bluish-green. Dorsellum metallic bluish-green. Propodeum black. Coxae, femora, mid and hind tibiae black with metallic tinges, fore tibia dark brown with apex pale brown; fore tarsus dark brown; mid and hind tarsi with T1–3 white, T4 black. Fore wing infuscate with a hyaline band close to apical margin, hind wing hyaline. Petiole black. Gaster dark brown.

Antenna flattened, scape widest at apex. Frons and vertex with strong reticulation. Frontofacial suture V-shaped. Subtorular sutures present but difficult to see because they are dark. Temples with scattered setae. Occipital margin with a sharp carina behind ocellar triangle.

Pronotal collar with a strong carina along anterior margin. Mesoscutum with strong reticulation; notauli distinct in anterior ¾; midlobe with six pairs of setae. Mesoscutellum convex, with strong reticulation. Dorsellum convex and smooth. Propodeum with a complete median carina; with strong reticulation; callus with four setae. Fore wing with speculum absent; with a stigmal hairline and with radial cell bare.

Petiole as long as wide, with strong sculpture on dorsal surface. Gaster short ovate; Gt 1-3 smooth, remaining tergites with weak reticulation.

Relative measurements: head length dorsal 21; head length frontal 27; head width 49; POL 9; OOL 7; lateral ocellus maximum width 3; eye length 21; malar space not measurable; mouth width not measurable; mesosoma length 74; mesosoma width 47; mesoscutellum length 30; mesoscutellum width 29; fore wing length 135; fore wing width 79; marginal vein length 67; postmarginal vein length 4; stigmal vein length 10; fore wing marginal fringe length 3; gaster length 74; gaster width 52.

Male. Unknown.

Hosts. Unknown.

Distribution. Ecuador.

Material examined. Type material. Holotype ♀ “ ECUADOR: Napo, Papallacta , 4000m, 14.ii.1983, L. Huggert ” ( MZLU).

Etymology. From the Latin setosus = bristly, referring to fore wing speculum obliterated by setae.

Figures

Figs 152–157. Closterocerus spp. C. scitulus, paratype ♀ – (152) habitus dorsal view; (153) habitus lateral view. C. setosus, holotype ♀ – (154) habitus dorsal view; (155) head frontal view. C. arenalensis, holotype ♀ – (156) habitus dorsal view; (157) head frontal view.