Eriastichus facilis, 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 facilis sp. nov. Figure 28

Type locality.

Costa Rica, Puntarenas, Estación Biológica Monteverde, 10°20'N, 84°49'W, 1540 m, 26.ii.2007, J.S. Noyes 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, 26.ii.2007, J.S. Noyes", "HOLOTYPE Eriastichus facilis Hansson" [red printed label], (NHMUK014431042).

Additional type material.

Paratypes (2♂♂): 1♂ "Costa Rica, Cartago, Humo, El Copal, 9°47'N, 83°45'W, 1050-1250 m, 29.ii-6.iii.2008, C. Hansson" (MZLU:7037.2); 1♂ "COSTA RICA, Alajuela, Est. Pilón, 10°43'N, 85°59'W, 700 m, 12-18.ii.2003, C. Hansson & J.A. Azofeifa" (MZLU:7037.3).

Diagnosis

(male). Head dark brown, scape yellowish brown, pedicel and flagellum brown; ventral plaque on scape ca. 0.2 × as long as scape (Fig. 28 ), antenna with dorsobasal setae on F1 0.9 × as long as F1; gaster with lateral tufts of pale and flattened setae on Gt6.

Description

(male holotype NHMUK014431042). Length of body 1.5 mm (paratypes 1.0-1.1 mm). Head dark brown, scape yellowish brown, pedicel and flagellum brown, ventral plaque dark brown. Mesoscutum, mesoscutellum and propodeum dark brown, dorsellum pale brown. Legs with hind coxa and hind femur dark 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 2.6; WM/MS 1.4; MS/HE 0.5; HE/head length in frontal view 0.6; widths head/mesoscutum 1.0. Antenna. Pedicel + flagellum length/mesoscutum width 1.7; pedicel + flagellum length/head width 1.6; lengths scape/ventral plaque 4.7; ventral plaque located below the middle of scape; scape length/width 3.5; lengths scape/head (dorsal view) 0.5; scape length/HE 0.9; length/width F1, F2, F3, F4, clava: 2.2, 2.2, 2.5, 2.5, 6.3; length dorsobasal setae on F1/length F1 0.9. Mesosoma. Length/width 1.4; mesoscutum length/width 0.6; mesoscutellum length/width 0.7; widths SMG/SLG 1.2; enclosed space between SMG length/width 2.1; lengths mesoscutum/mesoscutellum 1.4; lengths mesoscutellum/dorsellum 2.7; lengths mesosoma/gaster 0.9. Wings. CC length/width 18.0; lengths CC/MV 1.2; lengths MV/ST 2.0; lengths MV/PM 3.8; lengths PM/ST 0.5; submarginal vein with five setae on dorsal surface, in all 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.