Lautaroderus Gumovsky, gen. n.

Figs 1–3

Type species. Lautaroderus malalcahuello sp. n., by present designation and monotypy.

Diagnosis (female). Calcar short and bifid (Fig. 3D); tarsi of all legs 4-segmented (Figs 3C‒F); flagellum 9-segmented, with first anellus (Fig. 2E: an1) tiny, ring-like, and second anellus (Fig. 2E: an2) larger, funicle 4- segmented, and club 3-segmented; face with X-shaped pattern of grooves (Figs 2B, 3G); clypeus delimited by sutures dorsally between tentorial pits and laterally, its anterior margin incurved (Figs 2B–E); occipital carina absent (Fig. 2A); mesothoracic spiracle exposed (Figs 3A, G); propleura diverging posteriorly (Fig. 3A: pl 1); prepectus large (Fig. 3C: pp); mesoscutum with anterior one-half of midlobe and lateral parts of sidelobes with scattered bristles, and notauli sulcate anteriorly but shallower, slightly fading posteriorly (Fig. 2A); mesoscutellum with two pairs of setae (Fig. 2A); metascutellum (Fig. 2A: mtsc) wide and triangular, about one-third as long as mesoscutellum; fore wing (Figs 1A–C) with basal cell densely setose, speculum absent, basal vein present as a pigmented fold, subcosta of SMV broken at junction with parastigma, and PMV and STV long, of about same length; hind wing with distinct spur vein in shape of a sclerotized process (Figs 1A–C); gaster with Gt 1 not swollen, Gt 7 present as syntergum (Fig. 3B).

Description. Face with distinct tentorial pits (Figs 2D, E); clypeus delimited by sutures, its anterior margin incurved (Figs 2B–E); facial grooves X-shaped (Figs 2B, 3G), the scrobal grooves disconnected and transfacial sulcus very short (Fig. 3G: sg), with arms of frontal sulcus V-shaped (Figs 2B, 3G: fs) and extending toward posterior ocellus but ending between compound eye and median ocellus (Fig. 3G: fs). Flagellum with second anellus 1.5× smaller than any of F1–F4; club 3-segmented (Figs 2D, E). Malar sulcus present (Figs 2B–E). Mandible bidentate, with two equal acute teeth and with exposed and visible muscle, which extends into broad incision (Fig. 2C). Occiput not margined, evenly curved, without occipital carina (Fig. 2A). Pronotum relatively wide, its collar with about 10 bristles and with isolated large bristle on each posterolateral corner, its collum short, evenly sloping, with sparse, short setae (Fig. 2A). Propleura diverging posteriorly, prosternum with sulcate discrimen medially (Fig. 3A). Mesothoracic spiracle exposed (Fig. 3A: msp). Prepectus (Fig. 3C: pp) large, over 10× longer dorsally than narrow acropleuron (Fig. 3C: ar), and about as wide as lateral panel of pronotum (Fig. 3A). Mesoscutum with numerous short setae anteriorly and on sidelobes; notauli sulcate anteriorly but shallower, slightly fading posteriorly; posterior part of midlobe with two pairs of long bristles and some smaller setae between them (Fig. 2A). Mesoscutellum with two pairs of strong bristles (Fig. 2A), frenal area not marked off (Figs 1D, E, 2A). Mesopleuron with distinct femoral depression and straight transepimeral suture (Fig. 3A). Metascutellum (Fig. 2A: mtsc) wide and triangular, about 1/3 as long as mesoscutellum, lateral panels of metanotum as wide as metascutellum (Figs 1D, E, 2A). Propodeum with wide median carina fading posteriorly (Fig. 1E); propodeal spiracle small and round, separated from metanotal margin by about its own diameter (Figs 1D, E: psp). Legs with 4-segmented tarsi (Figs 3C–F); fore leg with short, nearly straight, bifid calcar (Fig. 3D: ca) and longitudinal basitarsal comb (Fig. 3D: bc); mid and hind legs with spurs simple, needle-like (Figs 3C, E, F). Fore wing (Figs 1A–C) with basal cell densely setose dorsally and ventrally; fore wing disc without speculum; SMV broken, with subcosta abruptly joining parastigma; basal vein traceable as a dark fold; PMV about as long as STV, both elongate; fore wing disc densely setose, with setae not arranged in rows. Hind wing with distinct spur vein (Fig. 1A). Petiole short, transverse. Gaster ovate (Figs 1C, 3B) with posterior margins of tergites straight (Fig. 1B); Gt 1 not swollen compared to following tergites (Fig. 3B); Gt 7 present as syntergum, short, with membranous apical tip; ovipositor sheaths short, ovipositor comparatively robust (Fig. 3B); hypopygium not reaching apex of metasoma, mucro short (Fig. 3B).

Biology. Not known.

Distribution. Neotropical region (Chile).

Etymology. The genus name is derived from Lef-Traru (known as ’Lautaro’, a young Mapuche toqui known for leading the indigenous resistance against Spanish conquest in Chile) and -derus (from Euderus). Gender masculine.