Eriastichus geratis, 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 geratis sp. nov. Figure 33

Type locality.

Costa Rica, Puntarenas, San Vito, Estación Biológica Las Alturas, 1500 m, 8°57'N, 82°50'W, 17-18.ii.2012, J.S. Noyes leg.

Type specimen.

Holotype male dried and glued to a paper card. Original labels: "COSTA RICA, Puntarenas, San Vito, E. Las Alturas, 1500 m, 8°57'N, 82°50'W, 17-18.ii.2012, J.S. Noyes, NHM (Ent) 2012-91", "HOLOTYPE Eriastichus geratis Hansson" [red printed label], (NHMUK014431046).

Additional type material.

Paratype 1♂ "Costa Rica, San José, San Gerardo de Dota, 20-21.ii.2013, J.S. Noyes, NHM (Ent) 2012-91" (NHMUK014431047).

Diagnosis

(male). Head dark brown, scape and pedicel pale brown, flagellum brown; ventral plaque on scape ca. 0.4 × as long as scape (Fig. 33 ), 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 NHMUK014431046). Length of body 1.8 mm (paratype 1.7 mm). Head dark brown, scape and pedicel pale brown, flagellum brown, ventral plaque dark brown. Mesoscutum and mesoscutellum black with metallic tinges, dorsellum dark brown, propodeum black. Legs with coxae, mid and hind femora dark brown, fore femur pale brown, remaining parts of legs yellowish brown. Gaster dark brown.

Head. Length/width in frontal view 0.8; width/length in dorsal view 2.4; POL/OOL 1.9; WM/MS 1.6; MS/HE 0.6; HE/head length in frontal view 0.5; widths head/mesoscutum 1.0. Antenna. Pedicel + flagellum length/mesoscutum width 1.8; pedicel + flagellum length/head width 1.8; lengths scape/ventral plaque 2.5; ventral plaque located in the middle of scape; scape length/width 2.8; lengths scape/head (dorsal view) 0.5; scape length/HE 0.9; length/width F1, F2, F3, F4, clava: 3.2, 2.8, 3.2, 3.0, 7.7; length dorsobasal setae on F1/length F1 0.6. Mesosoma. Length/width 1.5; mesoscutum length/width 0.6; mesoscutellum length/width 0.7; widths SMG/SLG 1.2; enclosed space between SMG length/width 1.9; lengths mesoscutum/mesoscutellum 1.5; lengths mesoscutellum/dorsellum 2.5; lengths mesosoma/gaster 0.8. Wings. CC length/width 19.3; lengths CC/MV 1.1; lengths MV/ST 2.2; lengths MV/PM 4.3; lengths PM/ST 0.5; submarginal vein with six setae on dorsal surface, in both types. Gaster. With lateral tufts of pale and flattened setae on Gt6.

Figures

Figures 28 - 34. Eriastichus spp. head and antenna in lateral view, male holotypes 28 E. facilis 29 E. fenestris 30 E. follis 31 E. eminis 32 E. glanis 33 E. geratis 34 E. galeatis.