Closterocerus altamiraensis, 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 : 18-19

Closterocerus altamiraensis sp.nov.

( Figs 25–29 )

Diagnosis. Antenna flattened with long and erect setae, scape widest at apex ( Fig. 26 ); frons with upper border distinct; vertex ±flat ( Fig. 29 ); pronotal collar without a carina along anterior margin ( Figs 25, 27 ); mesoscutum and mesoscutellum with different colours ( Figs 25, 27 ); midlobe of mesoscutum with one pair of setae, attached in posterior part ( Figs 25, 27 ); notauli strongly curved ( Figs 25, 27 ); fore wing hyaline with areas along apical margin, below stigmal vein and below base of marginal vein infuscate ( Figs 25–28 ); hind tarsus white ( Figs 26, 28 ); length of body female 0.9–1.1mm, male 0.8–1.0mm.

Female holotype: length of body 1.0mm.

Antenna dark brown. Frons golden-green. Vertex metallic purple in anterior one-half and metallic bluish-purple in posterior one-half. Mesoscutum with sidelobes metallic purple and midlobe metallic bluish-purple. Mesoscutellum black with golden tinges and with lateral and posterior margins metallic bluish-purple. Dorsellum metallic purple. Propodeum dark brown with metallic tinges. Legs with coxae, femora and hind tibia dark brown, fore and mid tibiae white; tarsi white. Fore wing hyaline with areas along apical margin, below stigmal vein and below base of marginal vein infuscate; hind wing hyaline. Petiole dark brown. Gaster with Gt 1-2 metallic purple, Gt 6 metallic blue, remaining tergites dark brown with metallic purple tinges.

Antenna flattened, scape widest at apex. Frons and vertex with strong reticulation. Frontofacial suture V-shaped; frons with upper border distinct. Subtorular sutures present. Occipital margin rounded.

Pronotal collar without a carina along anterior margin. Mesoscutum with strong reticulation; notauli strongly curved and ±complete; midlobe with one pair of weak setae in posterior part. Mesoscutellum with weak reticulation. Dorsellum convex and ±smooth. Propodeum smooth, without median carina; callus with two setae. Fore wing speculum closed; with a stigmal hairline and with radial cell bare.

Petiole very short, just a transverse strip. Gaster ovate; Gt 1-2 smooth, remaining tergite with weak reticulation.

Relative measurements: head length dorsal 15; head length frontal 16; head width 29; POL 4.5; OOL 2.5; lateral ocellus maximum width 2.5; eye length 15.5; malar space 4; mouth width 7; mesosoma length 33; mesosoma width 25; mesoscutellum length 13; mesoscutellum width 15; fore wing length 58; fore wing width 35.5; marginal vein length 28; postmarginal vein length 1.5; stigmal vein length 6; fore wing marginal fringe length 5.5; gaster length 32; gaster width 23.

Variation in paratype material. Length of body: 0.9–1.1mm. Mesoscutum with midlobe metallic bluish-purple to purple.

Male ( Figs 27, 28 ). Length of body: 0.8–1.0mm. Vertex with anterior one-half metallic bluish-purple, posterior one-half metallic bluish-green. Midlobe of mesoscutum golden-green. Mesoscutellum golden-red. Otherwise as in female.

Hosts. Unknown.

Distribution. Costa Rica.

Material examined.

Type material. Holotype ♀ “ COSTA RICA: Puntarenas, Estación Altamira , Send. Los Gigantes, 1450m, 9º02’N, 83º00’W, 7.ii-5.iii.2002, YPT, C. Hansson & Parataxonomos” ( MZLU) . Paratypes (18♀ 12♂, CNC, MZLU, MZUCR, NHMUK) : 13♀ 9♂ with same collecting data as holotype ; 1♀ ” COSTA RICA: Puntarenas, Monteverde, St Luis Valley , 17.viii.1986, L. Masner, CR-03” ; 1♀ ” COSTA RICA: Puntarenas, P.N. Carara, Sendero Universal, 0-100m, LN195703/470200, 12.ix.2004, J.A. Azofeifa ” ; 2♀ “ COSTA RICA: Cartago, Humo, El Copal , 9°47’N, 83°45’W, 1050-1250m, 29.ii-6.iii.2008, C. Hansson ” ; 2♂ “ COSTA RICA: Heredia, E.B. La Selva , 75m, 10º26’N, 84º01’W, 23.ii.2006, J.S. Noyes ” ; 1♀ from same locality as previous but collected 22-24. ii.2012 ; 1♂ “ COSTA RICA: Limón, R.B. Hitoy-Cerere, 100m, 9˚40’N, 83˚02’W, 20-22.ii.2006, J.S. Noyes ” .

Etymology. Named after type locality and the Latin suffix - ensis = place, locality.

Figures

Figs 25–29. Closterocerus altamiraensis – (25) habitus dorsal view, paratype ♀; (26) habitus lateral view, holotype ♀; (27) habitus dorsal view, paratype ♂; (28) habitus lateral view, paratype ♂; (29) vertex, paratype ♀.