Eriastichus nebulis, 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 nebulis sp. nov. Figure 38

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 nebulis Hansson" [red printed label], (NHMUK014431053).

Diagnosis

(male). Head dark brown with metallic tinges, scape yellowish brown, pedicel and flagellum brown; ventral plaque on scape ca. 0.3 × as long as scape (Fig. 38 ), 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 NHMUK014431053). Length of body 1.9 mm. Head dark brown with metallic tinges, scape yellowish brown, pedicel and flagellum brown, ventral plaque dark brown. Mesoscutum and mesoscutellum black with metallic tinges, dorsellum and propodeum dark brown. Legs yellowish brown. Gaster dark brown.

Head. Length/width in frontal view 0.7; width/length in dorsal view 2.2; POL/OOL 2.3; WM/MS 1.6; MS/HE 0.5; HE/head length in frontal view 0.6; widths head/mesoscutum 1.2. Antenna. Pedicel + flagellum length/mesoscutum width 2.3; pedicel + flagellum length/head width 1.9; lengths scape/ventral plaque 3.0; ventral plaque located below the middle of scape; scape length/width 3.0; lengths scape/head (dorsal view) 0.5; scape length/HE 0.9; length/width F1, F2, F3, F4, clava: 3.6, 3.8, 3.3, 3.3, 7.8; length dorsobasal setae on F1/length F1 0.6. Mesosoma. Length/width 1.7; mesoscutum length/width 0.7; mesoscutellum length/width 0.8; widths SMG/SLG 1.2; enclosed space between SMG length/width 2.2; lengths mesoscutum/mesoscutellum 1.5; lengths mesoscutellum/dorsellum 2.9; lengths mesosoma/gaster 0.7. Wings. CC length/width 20.0; lengths CC/MV 1.0; lengths MV/ST 2.0; lengths MV/PM 3.8; lengths PM/ST 0.5; submarginal vein with eight setae on dorsal surface. Gaster. With lateral tufts of pale and flattened setae on Gt6.

Figures

Figures 35 - 40. Eriastichus spp. head and antenna in lateral view, male holotypes 35 E. hilaris 36 E. maniatis 37 E. johnlasallei 38 E. nebulis 39 E. neonis 40 E. johnnoyesi.