Grotiusomyia leucaena Hansson 2023, sp. nov.
Creators: name: Hansson, Christer
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Eulophidae
Grotiusomyia
Grotiusomyia leucaena

description: Grotiusomyia leucaena sp. nov.
Figs 11, 33, 60, 86, 103
Diagnosis. Mandibles yellowish-brown with a large tooth at apex and with a row of small teeth above large tooth (as in Fig. 111); flagellum 1.4× as long as width of mesoscutum, F4 1.5× as long as wide, apex of clava pointed, F1–F4 dark brown, F5 white with base brown, F6 white (Figs 11, 60); frons and vertex with weak reticulation (Figs 86, 103); occipital margin with a sharp carina throughout (Fig. 86); mesoscutum and mesoscutellum with same colour and reticulation (Fig. 33); mesoscutellum convex; dorsellum flat, smooth and shiny, posterior margin evenly rounded with small dents; fore wing with 5–6 setae in apico-dorsal part of costal cell, completely hyaline (Fig. 11; fore coxa white, mid coxa yellowish-brown with median part black (Fig. 11); gaster (Fig. 33) 1.9× as long as wide; Gt 1 0.4× as long as length of gaster, dorsal surface smooth, posterior margin curved slightly forwards; Gt 6 0.2× as long as length of gaster with anterior part 1.9× as wide as width of posterior part, posterior margin straight with sharp edge.
Description (female holotype). Length 1.9 mm. Frons and vertex with weak reticulation and shiny, scrobes smooth, frons with a few scattered setae between scrobes and eyes. Mandibles with a large tooth at apex and with a row of small teeth above large tooth. Occipital margin with a sharp carina throughout. Dorsellum flat, smooth and shiny, posterior margin ±evenly rounded with small dents. Propodeal callus with ten setae. Fore wing with six setae on dorsal surface of submarginal vein; with 16 admarginal setae; costal cell with 25 setae on ventral surface, partly in two rows, apico-dorsal margin with six setae; speculum distinct and closed below. Gaster long ovate; Gt 1 smooth and shiny without sculpture, remaining tergites with weak reticulation; Gt 1 with posterior margin curved slightly forwards, Gt 6 with posterior margin straight.
Colour. Head metallic bluish-green, scrobes black. Mandibles yellowish-brown.Antennae with scape yellowish-white, pedicel pale brown, F1–F4 dark brown, F5 white with base brown, F6 white. Mesosoma golden-green. Legs with fore coxa white, mid coxa yellowish-brown with median part black, hind coxa black with metallic tinges; trochanters yellowish-white; femora, tibiae and tarsi yellowish-brown. Gaster with Gt 1 metallic bluish-green, remaining tergites black with metallic tinges.
Relative measurements: head length, dorsal view 21; head length, frontal view 34; head width 46; POL 9; OOL 5.5; mouth width 14; malar space 5; eye length 26; lateral ocellus diameter 4; scape length 18; scape width 4.5; pedicel length 5.5; pedicel width. dorsal view 4; flagellum length 53; F1 length 9; F1 width 4; F2 length 8.5; F2 width 4.5; F3 length 10; F3 width 5.5; F4 length 9; F4 width 6; clava length 12; clava width 6; pronotum length 19; pronotum width 29; mesosoma length 62; mesosoma width 37; midlobe of mesoscutum length 22; mesoscutellum length 21; mesoscutellum width 19; propodeum length 14.5; hind tibia length 43; hind tibial spur1 length 8; hind tibial spur2 length 4; hind tarsus length 33; hind basitarsus length 8; fore wing length 110; fore wing width 45; costal cell length 32; costal cell width 3; marginal vein length 35; postmarginal vein length 15; stigmal vein length 12; Gt 1 length 22; Gt 6 length 10; Gt 6 width at base 21; Gt 6 width at apex 11; gaster length 62; gaster width 33.
Variation. Length 1.6–1.9 mm. Costal cell with 5–6 setae in apico-dorsal part. Propodeal callus with 8–10 setae.
Male. Unknown.
Distribution. Costa Rica.
Etymology. From the Greek leukos = white, referring to the predominantly white antennal clava.
Material. Holotype female: COSTA RICA, Puntarenas, Reserva Privada Karen Mogensen, 9º52′N, 85º03′W, 305m, 23-24.ii.2007, J.S. Noyes (NHMUK). Paratypes (3♀, MZLU, NHMUK): 2♀ from same locality as holotype but collected 14-15.ii.2005; 1♀ COSTA RICA, Puntarenas, Peninsula Osa, Puerto Jimenez, 8º32′N, 83º19′W, 10m, viii.1991, P. Hanson.
description: Published as part of Hansson, Christer, 2023, Review of Grotiusomyia Girault (Chalcidoidea: Eulophidae), an exclusively New World genus, including 17 new species, pp. 39-77 in Zootaxa 5278 (1) on page 52, DOI: 10.11646/zootaxa.5278.1.2, http://zenodo.org/record/7894979