Closterocerus huggerti, 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 : 55-56

Closterocerus huggerti sp.nov.

( Figs 110, 111 )

Diagnosis. Scape and pedicel distinctly flattened, flagellum only weakly flattened, scape widest in median part ( Fig. 111 ); ocelli small ( Fig. 110 ); pronotal collar without a carina along anterior margin ( Fig. 110 ); midlobe of mesoscutum with three pairs of setae ( Fig. 110 ); hind tarsi white ( Fig. 111 ); fore wing hyaline with an infuscate band below stigmal vein, speculum open below and towards base of wing ( Fig. 110 ); length of body female 1.2–1.4mm.

Female holotype: length of body 1.4mm.

Antenna dark brown. Frons dark brown with golden tinges. Vertex metallic bluish-green. Mesoscutum, mesoscutellum and dorsellum metallic bluish-purple. Propodeum black with metallic tinges. Coxae, femora, mid and hind tibiae dark brown; fore tibia white with base dark brown; tarsi white. Fore wing hyaline with an infuscate band below stigmal vein; hind wing hyaline. Petiole dark brown. Gaster with Gt 1&5 metallic blue, Gt 2-3 metallic bluish-purple with median part metallic purple, Gt 4&7 metallic purple, Gt 6 golden-green.

Antenna with scape and pedicel distinctly flattened, flagellum only weakly flattened. Frons and vertex with strong reticulation. Frontofacial suture V-shaped. Subtorular sutures present. Occipital margin rounded.

Pronotal collar without a carina along anterior margin. Mesoscutum with weak reticulation; notauli distinct throughout; midlobe with three pairs of setae. Mesoscutellum convex with very weak reticulation. Dorsellum convex and smooth. Propodeum smooth, without median carina; callus with two setae. Fore wing speculum open below and towards base of wing; with a stigmal hairline and with radial cell bare.

Petiole very short, just a narrow band. Gaster ovate; tergites with weak reticulation.

Relative measurements: head length dorsal 18; head length frontal 22; head width 33; POL 7.5; OOL 3.5; lateral ocellus maximum width 2; eye length 17; malar space 5.5; mouth width 9; mesosoma length 40; mesosoma width 27; mesoscutellum length 17; mesoscutellum width 16.5; fore wing length 56; fore wing width 33; marginal vein length 31; postmarginal vein length 1.5; stigmal vein length 6; fore wing marginal fringe length 3.5; gaster length 45; gaster width 32.

Variation in paratype material. Length of body: 1.2–1.4mm. Vertex metallic bluish-green or metallic purple. Mesoscutum and mesoscutellum metallic bluish-purple or purple.

Male. Unknown.

Hosts. Unknown.

Distribution. Peru.

Material examined.

Type material. Holotype ♀ “ PERU: Loreto, Iquitos, 9.ii.1984, Lars Huggert ” ( MZLU) . Paratypes: 2♀ “ PERU: Cusco, Quillabamba, 23.xii.1983, Lars Huggert ” ( MZLU) .

Etymology. Named after the Swedish entomologist Lars Huggert, collector of the type specimens.

Comments. Left antenna is missing in holotype.

Figures

Figs 106–111. Closterocerus spp. C. hansoni, holotype ♀ – (106) habitus dorsal view; (107) habitus lateral view. C. hirsutus, holotype ♀ – (108) habitus dorsal view; (109) head frontal view. C. huggerti, holotype ♀ – (110) habitus dorsal view; (111) habitus lateral view.