Closterocerus variotinctus, 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 : 81-82

Closterocerus variotinctus sp.nov.

( Figs 182–184 )

Diagnosis. Antenna not flattened, only pedicel slightly flattened, scape ±narrow ( Fig. 182 ); fore wing hyaline with area below stigmal vein infuscate ( Fig. 184 ); pronotal collar without a carina along anterior margin ( Fig. 184 ); midlobe of mesoscutum with one pair of setae ( Fig. 184 ); vertex, mesoscutum and mesoscutellum with very weak reticulation, shiny ( Fig. 184 ); mesoscutum and mesoscutellum with different colour ( Fig. 184 ); fore wing with speculum open below and towards base of wing ( Fig. 184 ); length of body female 0.8–1.3mm, male 0.9–1.1mm.

Female holotype: length of body 1.3mm.

Antenna with scape, pedicel and F1–3 dark brown, F4–5 pale brown. Frons below frontofacial suture golden-green, above suture golden-red in lower part and metallic purple in upper part. Vertex metallic bluish-purple. Mesoscutum and dorsellum metallic bluish-green. Mesoscutellum golden-red. Propodeum metallic purple. Coxae, femora and hind tibia dark brown; fore and mid tibiae white; fore tarsus infuscate, mid and hind tarsi white. Fore wing hyaline with area below stigmal vein infuscate; hind wing hyaline. Petiole dark brown. Gaster with Gt

1

metallic bluish-purple, remaining tergites golden-purple.

Antenna not flattened except pedicel that is slightly flattened, scape ±narrow, pedicel with sharp ventral and dorsal edges. Frons with strong reticulation; frontofacial suture V-shaped. Vertex with very weak reticulation, shiny. Subtorular sutures present. Occipital margin rounded.

Pronotal collar without a carina along anterior margin. Mesoscutum and mesoscutellum with very weak reticulation, shiny; notauli distinct throughout; midlobe with one pair of weak setae. 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, radial cell bare.

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

Relative measurements: head length dorsal 15; head length frontal 22.5; head width 30; POL 5.5; OOL 2.5; lateral ocellus maximum width 3; eye length 18.5; malar space 4.5; mouth width 7.5; mesosoma length 35; mesosoma width 25.5; mesoscutellum length 15.5; mesoscutellum width 14.5; fore wing length 61; fore wing width 31; marginal vein length 30; postmarginal vein length 1.5; stigmal vein length 6; fore wing marginal fringe length 5; gaster length 40; gaster width 27.5.

Variation in paratype material. Length of body 0.8–1.3mm. Mesoscutum metallic bluish-green or purple. Propodeal callus with 2–3 setae.

Male ( Fig. 183 ). Length of body 0.9–1.1mm. Mesoscutum, dorsellum and propodeum golden-green or metallic bluish-green. Otherwise similar to female.

Hosts. Unknown.

Distribution. Costa Rica.

Material examined.

Type material. Holotype ♀ “ COSTA RICA: Heredia, La Selva , 75m, 10˚26’N, 84˚01’W, xii.1992, P. Hanson ” ( NHMUK) . Paratypes (15♀ 3♂, CNC, MZLU, MZUCR, NHMUK) : 1♀ with same label data as holotype; following from same locality as holotype but collected 14.xii.1995 (1♀), 23-24.ii.2005 (1♂) ; 2♀ “ COSTA RICA: Alajuela, Estación Pilón , 10º43’N, 85º59’W, 12-18.ii.2004, C. Hansson & J.A. Azofeifa ” ; 1♀ “ COSTA RICA: Alajuela, San Carlos, Sendero Pilón , 600m, 30.xi-22.xii.1999, G. Carballo, LN 457900_269100”; following from same locality as previous but collected 5.iv-7.v.2000 (1♀), 15.iii-5.vi.2001 (1♀) ; 1♀ “ COSTA RICA: Alajuela, Caño Negro, Teñideros , 41m, 2.ix.2005, J.A. Azofeifa et al., LN 313346_450130, #84539” ; 2♀ 2♂ “ COSTA RICA: Alajuela, 7km N Boca Tapada, Laguna Lagarto Lodge , 55m, 10˚41’N, 84˚11’W, 18-19.ii.2018, J.S. Noyes, NHM (Ent) 2018-87” ; 1♀ “ COSTA RICA: Alajuela, R.F. Rincon, Estación Caribe , 10º53’N, 83º18’W, 19-20.ii.2003, J.S. Noyes ” ; 4♀ “ COSTA RICA: Manuel Antonio N.P. 23-28.viii.1986, L. Masner ” .

Etymology. From the Latin varius = different, and tinctus = dye, colour, referring to the differently coloured mesoscutum and mesoscutellum.

Figures

Figs 178–183. Closterocerus spp. C. tumidus – (178) habitus dorsal view, holotype ♀; (179) habitus lateral view, holotype ♀; (180) habitus dorsal view, paratype ♂; (181) habitus lateral view, paratype ♂. C. variotinctus – (182) habitus lateral view, paratype ♀; (183) habitus lateral view, paratype ♂.

Figs 184–188. Closterocerus spp. C. variotinctus, paratype ♀ – (184) habitus dorsal view. C. verticillus, ♀ – (185) habitus dorsal view, paratype; (186) habitus lateral view, holotype. C. whartoni, ♀ – (187) habitus dorsal view, holotype; (188) habitus lateral view, holotype.