Aulacus enarotadi Jennings & Austin, sp. nov.
Creators: name: Jennings, John T.
name: Austin, Andrew D.
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Aulacidae
Aulacus
Aulacus enarotadi

description: Aulacus enarotadi Jennings & Austin, sp. nov.
(Figs 1, 4–6)
Material examined. Holotype. ♀, " New Guinea: (NW) Wisselmeren, Enarotadi, 1830 m, 2–3.VIII.1962 " " J. Sedlacek " (BPBM). Right antennal flagellomeres 7 to tip missing, apical half of right hind wing missing.
FEMALE. Length. 8.8 mm, excluding ovipositor.
Colour. Body and head black except antenna, metasomal T1 and T2, and ovipositor brown; legs brown except distal half of hind tarsal segment 1 and segments 2–4 cream-coloured; wings hyaline, with pale brown tint.
Head. 1.15 x wider than long when viewed dorsally (Fig. 4); face rugose punctate, with scattered short setae; subantennal groove absent; frons rugose punctate, without lateral medial carina above toruli, with scattered short setae; vertex rugose punctate, with scattered short setae; gena rugose punctate, with scattered short setae; posterior margin of head slightly concave in dorsal view; occipital carina absent; malar space 0.3 x eye height; clypeus 2.4 x as wide as high, margin weakly sinuate, short medial process; distance from lateral ocellus to eye margin 0.58 x distance between lateral ocelli (Fig. 4); scape 1.25 x length pedicel; first flagellomere 1.05 x as long as scape, 0.46 x as long as second flagellomere.
Mesosoma. Propleuron rugulose, pubescence short, ventro-lateral carina weak; pronotum without angular process, rugose; mesoscutum in lateral view rounded anterodorsally, medial and lateral lobes coarsely strigate (Fig. 5), with scattered short setae, admedial lines present; scutellum and axilla coarsely strigate (Fig. 5); metapostnotum scrobiculate, posterior margin weakly convex; mesepisternum rugose, with short pubescence; mesepimeron broad, carinate; metapleuron rugose, with short pubescence; propodeum coarsely rugose, posterior margin smooth; hind coxa strigate dorsally, pubescence short laterally, ovipositor guide on inner surface (Fig. 6), medial, angled posteriorly; hind trochanter imbricate, with scattered short setae; hind prefemur present; hind femur imbricate, with scattered short setae; hind tibia imbricate, pubescence short, with scattered stout emergent setae; hind femur 0.8 x length hind tibia; hind tibia with ventro-apical pecten of short robust spines; hind tarsal segments 1–4 with ventro-apical pecten of short robust spines, segment 1, 1.56 x length segment 2; segment 2, 1.8 x length segment 3; segment 3, 3.3 x length segment 4; segment 4, 0.55 x length segment 5; hind tarsal claw simple, 0.45 x length segment 5; fore wing vein 2-Rs+M long, second discal cell elongate, vein 2r-m absent medially and 3r-m complete; hind wing venation complete, R+Rs, M+Cu, Cu, r-m and 2-M present, spectral, with 3 hamuli.
Metasoma. 1.7 x length of mesosoma; T1 and T2 narrow when viewed dorsally, glabrous; ovipositor 13.4 mm.
MALE. Unknown
Remarks. Aulacus enarotadi has an ovipositor guide on the hind coxae which is somewhat medial on the inner surface and angled slightly posteriorly (Fig. 6) and, in this respect, it differs from the other Aulacus species from New Guinea, although it is similar to a number of Australian species, including several as yet undescribed species from northern Queensland. In A. sedlaceki, the hind coxa has a flattened inner surface and has a slight extension on the inner disto-ventral surface, extending posteriorly for a distance about equal to one-quarter the length of the trochanter (Fig. 9). The ovipositor guide is an elongate and posteriorly-pointing depression extending to the tip of the hind coxal extension, and with a margin fringed with stout setae (Fig. 9). It also differs from A. wau in which the ovipositor guide is also a shallow depression but in this species it is almost horizontal on the lower ventro-medial inner surface of the hind coxae (Fig. 11).
The species name is named after the type locality, Wisselmeren, Enarotadi, West Papua, Indonesia (Fig. 1). Nothing is known of its host biology.
description: Published as part of Jennings, John T. & Austin, Andrew D., 2006, Aulacid wasps (Hymenoptera: Aulacidae) of New Guinea, with descriptions of five new species, pp. 19-35 in Zootaxa 1365 on pages 23-24, DOI: 10.5281/zenodo.174782