Closterocerus eulampis, 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 : 47-48

Closterocerus eulampis sp.nov.

( Figs 93, 94 , 98 )

Diagnosis. Antenna with scape, pedicel and F1–2 flattened, F3–5 not flattened, scape widest in apical part, F1–3 dark brown and F4–5 pale brown ( Fig. 94 ); pronotal collar without a carina along anterior margin ( Fig. 93 ); midlobe of mesoscutum with very weak reticulation and with two pairs of long and strong setae ( Fig. 93 ); mesoscutellum with very weak reticulation ( Fig. 93 ); fore wing hyaline with median one-third and apical margin infuscate ( Fig. 93 ); length of body female 0.8–1.1mm, 0.7–1.1mm.

Female holotype: length of body 0.9mm.

Antenna dark brown, except pale brown F4–5. Frons golden-green. Vertex metallic bluish-purple in anterior one-half, golden-green in posterior one-half. Mesoscutum with midlobe golden-green, sidelobes metallic purple. Mesoscutellum golden-green in anterior one-half, metallic bluish-purple in posterior one-half. Dorsellum and propodeum black with metallic purple tinges. Legs with coxae and femora dark brown; fore tibia infuscate, mid tibia white, hind tibia dark brown; tarsi white. Fore wing hyaline with median one-third and apical margin infuscate; hind wing hyaline. Petiole dark brown. Gastral tergite 1 metallic purple, remaining tergites golden-purple.

Antenna with scape, pedicel and F1–2 flattened, F3–5 not flattened and narrow, scape widest in apical part. Frons with strong reticulation. Vertex with strong reticulation in anterior one-half, with very weak reticulation in posterior one-half. Frontofacial suture V-shaped. Subtorular sutures present. Occipital margin rounded.

Pronotal collar without a carina along anterior margin. Mesoscutum with very weak reticulation; notauli distinct in anterior two-thirds; midlobe of mesoscutum with two pairs of long and strong setae. Mesoscutellum ±flattened, with very weak reticulation. Dorsellum convex and smooth. Propodeum smooth and shiny; callus with two setae. Fore wing with speculum closed; with a stigmal hairline and with radial cell bare.

Petiole very short, just a narrow band. Gaster circular; tergites smooth and shiny.

Relative measurements: head length dorsal 14; head length frontal 20; head width 28; POL 4.5; OOL 2; lateral ocellus maximum width 2.5; eye length 16; malar space 3.5; mouth width 6; mesosoma length 29; mesosoma width 24; mesoscutellum length 13; mesoscutellum width 13; fore wing length 52; fore wing width 29; marginal vein length 26; postmarginal vein length 1.5; stigmal vein length 4; fore wing marginal fringe length 5.5; gaster length 30; gaster width 25.

Variation in paratype material. Length of body: 0.8–1.1mm. Mesoscutum with midlobe golden-green or golden-red, sidelobes metallic purple or golden-green. Mesoscutellum golden-green or golden-red in anterior one-half, metallic bluish-purple or golden-green in posterior one-half. Dorsellum black with metallic purple tinges or golden-green. Gt 1 metallic purple or blue.

Male ( Fig. 98 ). Length of body: 0.7–1.1mm. Similar to, and with same colour variations as in females.

Hosts. Unknown.

Distribution. Costa Rica.

Material examined.

Type material. Holotype ♀ “ COSTA RICA: Heredia, La Selva Biological Station , 50m, 10º25’N, 84º01’W, xii.1995 ” ( NHMUK) . Paratypes (57♀ 48♂, CNC, MZLU, MZUCR, NHMUK) : 14♀ from same locality as holotype but collected ix.1995 - iv.1996 ; following from same locality as holotype but collected 27-28.ii.2001 (2♂), 30-31.iii.2002 (1♂), 27-28.ii.2003 (4♀ 4♂), 23-24.ii.2005 (2♀ 4♂), 23.ii.2006 (1♀ 2♂), 28-29.ii.2008 (1♀), 22-24.ii.2012 (7♂) ; 1♀ “ COSTA RICA: Heredia, 11km SE La Virgen , 450-550m, 13.ii-20.iv.2003 ” ; 1♀ “ COSTA RICA: Heredia, Chilamate , 75m, 25.iii.1989, Hanson & Godoy” ; 2♀ 3♂ “ COSTA RICA: Alajuela, 7km N Boca Tapada, Laguna Lagarto Lodge , 55m, 10º41’N, 84º11’W, 18-19.ii.2018, J.S. Noyes, NHM (Ent) 2018-87” ; 1♂ “ COSTA RICA: Alajuela, P.N. Arenal, Send. Ceibo , 10º27’N, 84º41’W, 22-23.ii.2016, J.S. Noyes, NHM (Ent) 2016-79” ; 1♀ “ COSTA RICA: Guanacaste, P.N. Palo Verde, Sct Palo Verde, Camino a area de acampar; 0-50m, 10-18.vii.2000, I. Jimémez, LN 260952/385020” ; 3♀ “ COSTA RICA: Limón, Pococi, P.N. Braulio Carrillo, Estación Quebrada Gonzalez , 10º09’N, 83º57’W, 400-500m, 23.iv.2002, Hanson & Godoy”; following from same locality as previous but collected 4.vi.2002 (2♀), 21.viii.2002 (3♀), 24.ix.2002 (3♀), 15.ii.2003 (1♀ 9♂), 25.ii.2005 (2♀ 7♂) ; 2♀ 1♂ “ COSTA RICA: Limón, R.B. Hitoy-Cerere , HQ, 100m, 9º40’N, 83º02’W, 14-18.i.1991, J.S. Noyes ”; following from same locality as previous but collected 8.v.1999 (1♀), 17.iv-17.vii.1999 (3♀), 17.ii-17.vi.2000 (2♀), 24-25.ii.2004 (1♀ 4♂), 20-22.ii.2006 (2♀ 2♂), 22-23. ii.2010 (1♂) ; 2♀ “ COSTA RICA: Limón, 16km W Guapiles , 400m, iii.1989, Paul Hanson” ; 1♀ from same locality as previous but collected x-xi.1989 ; 2♀ “ COSTA RICA: Puntarenas, P.N. Piedras Blancas, Estación El Bonito , 100m, 08º43’N, 83º13’W, 13-14.ii.2012, J.S. Noyes, NHM (Ent) 2012-91” .

Etymology. From the Greek eulampes = bright, shining, referring to the shiny dorsum.

Comments. Female holotype missing F5 on right antenna.

Figures

Figs 88–94. Closterocerus spp. C. deltoides – (88) habitus dorsal view, paratype ♀; (89) habitus lateral view, paratype ♀; (90) head frontal view, paratype ♀; (91) habitus dorsal view, paratype ♂; (92) habitus lateral view, paratype ♂. C. eulampis – (93) habitus dorsal view, paratype ♀; (94) habitus lateral view, holotype ♀.

Figs 95–101. Closterocerus spp. C. flammeus – (95) habitus dorsal view, paratype ♀; (96) habitus lateral view, paratype ♀; (97) habitus lateral view, paratype ♂. C. eulampis, paratype ♂ – (98) habitus lateral view. C. flavicinctus, non-types – (99) habitus dorsal view, ♀; (100) habitus lateral view, ♀; (101) vertex, ♀.