Eriastichus tendrilis, Hansson, 2021

Hansson, Christer, 2021, The genus Eriastichus La Salle (Hymenoptera, Eulophidae, Tetrastichinae) in the Neotropical region, introducing 48 new species, ZooKeys 1019, pp. 35-91 : 35

Eriastichus tendrilis sp. nov. Figure 55

Type locality.

Costa Rica, Puntarenas, Estación Biológica Monteverde, 10°20'N, 84°49'W, 1540 m, 18-25.ii.2004, C. Hansson leg.

Type specimen.

Holotype male dried and glued to a paper card. Original labels: "COSTA RICA, Puntarenas, E.B Monteverde, 10°20'N, 84°49'W, 1540 m, 18-25.ii.2004, C. Hansson", "HOLOTYPE Eriastichus tendrilis Hansson" [red printed label], (MZLU:7048.1).

Additional type material.

Paratypes (5♂♂): 2♂♂ with same label data as holotype (MZLU:7048.2, MZUCR:01696); 2♂♂ from same locality as holotype but collected 26.ii.2007 (NHMUK014431070, NHMUK014431071); 1♂ "Costa Rica, San José, San Gerardo de Dota, El Manantial, 18-20.ii.2010, J.S. Noyes, NHM (Ent) 2010-21" (NHMUK014431072).

Diagnosis

(male). Head black with metallic tinges, scape yellowish brown, pedicel and flagellum brown; ventral plaque on scape ca. 0.3 × as long as scape (Fig. 55 ), antenna with dorsobasal setae on F1 0.6 × as long as F1; gaster with lateral tufts of pale and flattened setae on Gt6.

Description

(male holotype MZLU:7048.1). Length of body 1.5 mm (paratypes 1.4-1.7 mm). Head black with metallic tinges, scape yellowish brown, pedicel and flagellum brown, ventral plaque dark brown. Mesoscutum and mesoscutellum black with metallic tinges, dorsellum and propodeum black. Legs with fore and mid coxae yellowish brown with base brown, hind coxa black, hind femur pale brown, remaining parts of legs yellowish brown. Gaster dark brown.

Head. Length/width in frontal view 0.7; width/length in dorsal view 2.5; POL/OOL 1.8; WM/MS 1.6; MS/HE 0.6; HE/head length in frontal view 0.6; widths head/mesoscutum 1.1. Antenna. Pedicel + flagellum length/mesoscutum width 1.5; pedicel + flagellum length/head width 1.5; lengths scape/ventral plaque 3.0; ventral plaque located in the middle of scape; scape length/width 3.0; lengths scape/head (dorsal view) 0.6; scape length/HE 0.9; length/width F1, F2, F3, F4, clava: 2.7, 2.7, 2.5, 2.5, 5.5; length dorsobasal setae on F1/length F1 0.6. Mesosoma. Length/width 1.5; mesoscutum length/width 0.7; mesoscutellum length/width 0.8; widths SMG/SLG 1.0; enclosed space between SMG length/width 2.0; lengths mesoscutum/mesoscutellum 1.6; lengths mesoscutellum/dorsellum 3.0; lengths mesosoma/gaster 1.0. Wings. CC length/width 18.0; lengths CC/MV 1.0; lengths MV/ST 2.1; lengths MV/PM 6.5; lengths PM/ST 0.3; submarginal vein with six setae on dorsal surface (7-8 setae in paratypes). Gaster. With lateral tufts of pale and flattened setae on Gt6.

Figures

Figures 51 - 56. Eriastichus spp. head and antenna in lateral view, male holotypes 51 E. sannionis 52 E. scalaris 53 E. taraxis 54 E. renodis 55 E. tendrilis 56 E. velaminis.