Eriastichus acribis, 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 acribis sp. nov. Figure 11

Type locality.

Costa Rica, Heredia, Estación Biológica La Selva, 75 m, 10°26'N, 84°01'W, 24-25.ii.2011, J.S. Noyes leg.

Type specimen.

Holotype male dried and glued to a paper card. Original labels: "COSTA RICA, Heredia, E.B. La Selva, 75 m, 10°26'N, 84°01'W, 24-25.ii.2011, J.S. Noyes, NHM (Ent) 2011-93", "HOLOTYPE Eriastichus acribis Hansson" [red printed label], (NHMUK014431021).

Diagnosis

(male). Head brown; antenna (Fig. 11 ): scape yellowish brown, ventral plaque on scape ca. 0.1 × as long as scape, antenna with dorsobasal setae on F1 1.1 × as long as F1; gaster with lateral tufts of pale and flattened setae on Gt6.

Description

(male holotype NHMUK014431021). Length of body 1.2 mm. Head brown. Antenna with scape yellowish brown, ventral plaque brown, pedicel and flagellum brown. Mesoscutum and mesoscutellum dark brown; dorsellum and propodeum pale brown. Legs yellowish brown. Gaster dark brown.

Head. Length/width in frontal view 0.8; width/length in dorsal view 2.5; POL/OOL 2.8; WM/MS 3.6; MS/HE 0.4; HE/head length in frontal view 0.6; widths head/mesoscutum 1.2. Antenna. Pedicel + flagellum length/mesoscutum width 1.8; pedicel + flagellum length/head width 1.5; lengths scape/ventral plaque 6.7; ventral plaque located in the middle of scape; scape length/width 2.9; lengths scape/head (dorsal view) 0.5; scape length/HE 0.8; length/width F1, F2, F3, F4, clava: 2.5, 2.0, 2.3, 2.8, 7.3; length dorsobasal setae on F1/length F1 1.1. Mesosoma. Length/width 1.4; mesoscutum length/width 0.5; mesoscutellum length/width 0.6; widths SMG/SLG 1.0; enclosed space between SMG length/width 2.0; lengths mesoscutum/mesoscutellum 1.2; lengths mesoscutellum/dorsellum 2.3; lengths mesosoma/gaster 0.7. Wings. CC length/width 21.9; lengths CC/MV 1.0; lengths MV/ST 2.3; lengths MV/PM 4.9; lengths PM/ST 0.5; submarginal vein with four setae on dorsal surface. Gaster. With lateral tufts of pale and flattened setae on Gt6.

Figures

Figures 11 - 17. Eriastichus spp. head and antenna in lateral view, male holotypes 11 E. acribis 12 E. cluridis 13 E. aphritis 14 E. colenis 15 E. copalensis 16 E. coelotis 17 E. daptilis.