Ateleute boitata, 2018

ATELEUTE BOITATA SANTOS , SP. NOV.

( FIG. 5A–C, E, F, H–J)

Diagnosis Ateleute boitata can be distinguished from all species of Ateleute by the combination of the following characters. (1) Body relatively large (fore wing 8.9–10.0 mm long) and stout ( Fig. 5A). (2) Head dorsoventrally elongate (1.8 × as tall as long in lateral view; Fig. 5B). (3) Epicnemial carina completely absent. (4) Median longitudinal carina of propodeum distinct until posterior transverse carina ( Fig. 5F). (5) Hind wing vein 2-1A distinct. Dorsal surface of T1 smooth ( Fig. 5H). (6) Propodeum entirely ferruginous, with coarse wrinkles.

Description of female holotype Fore wing 8.9 mm long. Body shiny and mostly moderately pilose.

Head: Head in lateral view 1.8 × as tall as long ( Fig. 5B). Mandible moderately short, MLW 1.3, its apex only slightly narrower than base, MWW 0.7; ventral tooth wide, trapezoidal, distinctly longer than dorsal tooth; malar space wide, MSM 1.0. Clypeus moderately convex, moderately wide, CHW 1.70, at midlength much wider than base, CWW 1.6, narrower again at apex; clypeal margin sharp, strongly lamellate, straight ( Fig. 5C). Clypeus, supra-clypeal area and most of gena densely pilose; supra-antennal area, vertex and occiput glabrate. Supra-clypeal area rugulosecoriarious. Antenna with 36 flagellomeres; maximum width of flagellum about 1.7 × the minimum width of f1; flagellum subapically slightly enlarged, ventral surface flattened and rough around flagellomeres 9–30, strongly tapered towards apex ( Fig. 5E). Supra-antennal area distinctly concave, longitudinally striate; ocellar area distinctly convex. Vertex and occiput slightly coriarious. Occipital carina ventrally joining hypostomal carina just before mandible base.

Mesosoma: Pronotum longitudinally striate, striae weak along posterior margin and strong over median transverse sulcus, dorsally with small coriariouspunctate area. Mesoscutum coriarious, shiny, with strong transverse wrinkles along notaulus. Scuto-scutellar groove distinctly striate. Lateral carina of scutellum complete. Mesopleuron anteriorly densely pilose, rugulose-reticulate, posteriorly sparsely pilose, coriarious. Subalar ridge narrow, keeled. Epicnemial carina entirely absent. Mesopleural fovea absent. Sternaulus complete but shallow throughout, carinulate, apical 0.5 almost indistinct. Propodeum 1.4 × as long as wide, covered by strong, widely spaced wrinkles. Anterior transverse carina of propodeum distinct, straight, fading out on median portion and after sublateral corner of propodeum ( Fig.5F). Posterior transverse carina complete, straight; area posteriorly to posterior carina with most wrinkles in longitudinal orientation. Median longitudinal carina distinct until posterior transverse carina; areola distinctly delimited, smoother than remainder of propodeum; lateral longitudinal carina vestigial, distinct only as short ridge. Tibiae and tarsi with sparse, moderately stout bristles. Fore wing vein 1-Rs+M sinuous, continuous with cross-vein 1m-cu, cross-vein 1m-cu uniformly curved; cross-vein 1cu-a arising distad to base of 1M+Rs; vein 2Cua 1.5 × as long as cross-vein 2cu-a, veins angled at about 110°; APH 2.1; AWH 1.6; cross-vein 3r-m spectral; cross-vein 2r-m distinct but much shorter than 3r-m, veins parallel; vein 2-M about as long as 3-M. Hind wing vein 2-1A distinct, almost reaching wing margin; HW1C 2.3.

Metasoma: T1 smooth and polished T1LW 2.3, T1WW 3.5 ( Fig. 5H). Spiracle placed on anterior 0.55. T2 approximately square, T2LW 0.9, T2WW 1.2; polished, slightly coriarious, laterally with short, sparse hairs. Thyridium very shallow, almost indistinct. Ovipositor sheath broadly truncate ( Fig. 5I); ovipositor moderately long, OST 0.90, moderately stout, straight, its tip blunt, nodus absent, lower valve without distinct teeth ( Fig. 5J).

Colour: Head black; basal 0.6 of mandible ferruginous, apical 0.4 reddish; f5–8, apex of f4 and base of f9, whitish. Mesosoma: ferruginous (197,104,003); dorsal 0.5 of pronotum, most of mesoscutum, axillary through and scutellum blackish; fore- and mid legs uniformly lighter from base towards apex, t1–4 pale yellow, t5 blackish; hind tibia and t1–4 abruptly light yellow, hind t5 brownish. Wings hyaline. Metasoma: T1 mostly ferruginous, posteriorly with blackish white spot covering 0.2 of dorsal surface, followed by narrow whitish (057,014,086) stripe. T2–7 blackish, posteriorly with broad whitish stripes, on T4–7 distinctly narrower on median portion; T8 black with whitish lateral marks. S2–5 mostly whitish with progressively smaller brownish or blackish spots; S6 entirely whitish. Ovipositor sheath blackish; ovipositor reddish.