Eriastichus sannionis, 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 sannionis sp. nov. Figure 51

Type locality.

Costa Rica, Cartago, Humo, El Copal, 9°47'N, 83°45'W, 1050-1250 m, 29.ii-6.iii.2008, C. Hansson leg.

Type specimen.

Holotype male dried and glued to a paper card. Original labels: "Costa Rica, Cartago, Humo, El Copal, 9°47'N, 83°45'W, 1050-1250 m, 29.ii-6.iii.2008, C. Hansson", "HOLOTYPE Eriastichus sannionis Hansson" [red printed label], (MZLU:7047.1).

Additional type material.

Paratype 1♂ with same label data as holotype (NHMUK014431066).

Diagnosis

(male). Head yellowish brown with vertex and upper ½ of occiput brown, antenna yellowish brown; ventral plaque on scape ca. 0.5 × as long as scape (Fig. 51 ), antenna with dorsobasal setae on F1 0.6 × as long as F1; gaster with lateral tufts of pale and flattened setae on Gt5-6.

Description

(male holotype MZLU:7047.1). Length of body 1.5 mm (paratype 1.3 mm). Head yellowish brown with vertex and upper ½ of occiput brown, antenna yellowish brown, ventral plaque dark brown. Mesoscutum and propodeum dark brown, mesoscutellum black with metallic tinges, dorsellum pale brown. Legs yellowish brown. Gaster dark brown.

Head. Length/width in frontal view 0.7; width/length in dorsal view 2.2; POL/OOL 2.1; WM/MS 1.5; MS/HE 0.5; HE/head length in frontal view 0.7; widths head/mesoscutum 1.2. Antenna. Pedicel + flagellum length/mesoscutum width 1.8; pedicel + flagellum length/head width 1.5; lengths scape/ventral plaque 2.2; ventral plaque located above the middle of scape; scape length/width 3.3; lengths scape/head (dorsal view) 0.6; scape length/HE 0.9; length/width F1, F2, F3, F4, clava: 2.3, 2.2, 2.0, 2.0, 5.0; length dorsobasal setae on F1/length F1 0.6. Mesosoma. Length/width 1.6; mesoscutum length/width 0.6; mesoscutellum length/width 0.8; widths SMG/SLG 1.2; enclosed space between SMG length/width 2.2; lengths mesoscutum/mesoscutellum 1.3; lengths mesoscutellum/dorsellum 3.0; lengths mesosoma/gaster 0.8. Wings. CC length/width 30.0; lengths CC/MV 1.0; lengths MV/ST 1.9; lengths MV/PM 5.8; lengths PM/ST 0.3; submarginal vein with eight setae on dorsal surface, in both types. Gaster. With lateral tufts of pale and flattened setae on Gt5-6.

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.