Closterocerus melanogrammus, 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 : 61

Closterocerus melanogrammus sp.nov.

( Figs 124–126 )

Diagnosis. Antenna flattened, scape widest at apex ( Fig. 124 ); pronotal collar without a carina along anterior margin ( Figs 125, 126 ); midlobe of mesoscutum with four pairs of setae ( Fig. 125 ); midlobe of mesoscutum and median part of mesoscutellum black with golden-purple tinges ( Fig. 125 ); fore wing infuscate with two hyaline areas, one below marginal vein and one subapical ( Figs 124, 126 ); hind tarsus with T1–3 white, T4 dark brown ( Fig. 124 ); length of body female 1.1–1.3mm.

Female holotype: length of body 1.3mm.

Antenna dark brown. Frons golden-green. Vertex metallic bluish-purple in anterior one-half, metallic blue in posterior one-half. Mesoscutum with midlobe black with golden-purple tinges, sidelobes metallic bluish-purple. Mesoscutellum black with golden-purple tinges, lateral parts metallic bluish-purple. Dorsellum metallic purple. Propodeum golden-purple. Coxae, femora, mid and hind tibiae dark brown; fore tibia with basal one-half dark brown and apical one-half infuscate; fore tarsus infuscate, mid and hind tarsi with T1–3 white and T4 dark brown. Fore wing infuscate with two hyaline areas, one below marginal vein and subapical; hind wing hyaline. Petiole dark brown. Gaster with Gt 1,6 metallic purple, Gt 2 dark brown with sides metallic purple, remaining tergites dark brown with metallic tinges.

Antenna flattened, scape widest at apex. Frons with strong reticulation; frontofacial suture V-shaped. Vertex with strong reticulation. Subtorular sutures present. Occipital margin rounded.

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

Petiole very short, just a narrow band. Gaster oval-shaped; Gt 1 smooth, remaining tergites with very weak reticulation.

Relative measurements: head length dorsal 16; head length frontal 19; head width 33; POL 6; OOL 3; lateral ocellus maximum width 2,2; eye length 13.5; malar space 6.5; mouth width 9; mesosoma length 46; mesosoma width 32; mesoscutellum length 17; mesoscutellum width 20; fore wing length 68; fore wing width 40; marginal vein length 36; postmarginal vein length 2; stigmal vein length 6; fore wing marginal fringe length 4; gaster length 50; gaster width 31.

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

Male. Unknown.

Hosts. Unknown.

Distribution. Mexico.

Material examined.

Type material. Holotype ♀ “ MEXICO: Michoacan, 6mi. N Cheran , 8.vii.1985, J.B. Woolley, 85/034” ( TAMU) . Paratypes (9♀, MZLU, TAMU) : 7♀ with same label data as holotype ; 2♀ “ MEXICO: Michoacan, 2mi. S Carapan , 6.vii.1985, J.B. Woolley, 85/031” .

Etymology. From the Greek melanos = black and gramme = line, stripe, referring to black median parts of mesoscutum and mesoscutellum.

Figures

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 ♀.