Aulacus umbackae Jennings & Parslow & Austin 2018, sp. nov.
Creators: name: Jennings, John T.
name: Parslow, Ben A.
name: Austin, Andrew D.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Aulacidae
Aulacus
Aulacus umbackae

description: Aulacus umbackae Jennings & Austin, sp. nov.
Figs 49, 66.
Material examined. Holotype. ♀, " 17.28S 145.29E QLD. BS1 Longlands Gap. 30N[o] v1995 - 3Jan1996. L.Umback. 1150 m. Malaise trap." (ANIC). Left hind leg glued to card.
Description. FEMALE. Length. 9.6 mm, excluding ovipositor.
Colour. Head black, meso- and metasoma orange (Figs 49A, B), scape and pedicel brown, flagellomeres 1–4 black, flagellomere 5 brown, flagellomeres 6–12 cream, mandibles largely cream, teeth dark brown, mid tarsi and hind femora dark brown, hind tibiae brown, ovipositor sheaths black, ovipositor dark brown. Wings hyaline, brownish tinge (Fig. 49B).
Head. 1.38× wider than long when viewed dorsally (Fig. 49C); face rugulose, pubescence long; shallow subantennal groove; frons without lateral medial carina above toruli, reticulate and with short pubescence near ocelli to rugulose and with longer, denser pubescence near toruli; vertex and gena smooth, with scattered short setae; posterior margin of head not concave in dorsal view; occipital carina absent; malar space 0.12× height eye; clypeus 3.7× as wide as high, margin sinuate, with medial process; distance from lateral ocellus to eye margin 0.85× distance between lateral ocelli; scape 1.5× length pedicel; first flagellomere 1.45× as long as scape, 0.7× as long as second flagellomere.
Mesosoma. Propleuron rugulose, pubescence long, ventro-lateral carina present; pronotum smooth; mesoscutum in lateral view rounded antero-dorsally (Figs 49D, E), medial and lateral lobes rugose, with scattered short setae, admedial lines indistinct (Fig. 49E; notauli distinct, carinate, narrow and deep (Fig. 49E); scutellum and axillae rugose, scutellum anteriorly with pair of deep depressions, separated by a weak median carina; metapostnotum scrobiculate, posterior margin rounded; mesopleuron smooth, with scattered long setae; mesepimeron broad, carinate; metapleuron rugulose dorsally to areolate ventrally, with short pubescence; propodeum areolate, posterior margin scrobiculate; hind coxa strigate, pubescence long laterally, ovipositor guide medial, oblique, fringe of long setae on distal margin, no setae in groove (Fig. 49F; hind trochanter imbricate, with scattered short setae; prefemur on hind leg present; hind femur imbricate, with scattered short setae; hind tibia imbricate, pubescence short, with scattered stout emergent setae; hind femur 0.75× length hind tibia; hind tibia with ventro-apical pecten of short robust spines; hind tarsomeres 1–4 with ventro-apical pecten of short robust spines, tarsomere 1, 3.0× length tarsomere 2; tarsomere 2, 1.45× length tarsomere 3; tarsomere 3, 2.25× length tarsomere 4; tarsomere 4, 0.7× length tarsomere 5; hind tarsal claw 0.7× length tarsomere 5; fore wing veins 2r-m and 3r-m largely spectral; hind wing venation complete, R+Rs, M+Cu, Cu, r-m and 2-M spectral, with 3 hamuli.
Metasoma. Ovate, 1.64× length of mesosoma (Fig. 49B); T1 and T2 narrow, glabrous; ovipositor 10.6 mm.
MALE. Unknown.
Etymology. This species is named after the collector, L. Umback.
Distribution. This species is known only from the holotype locality, Longlands Gap, near Herberton, Queensland (Fig. 66).
Biology. Nothing is known of the biology of this species.
Comments. Aulacus umbackae is similar to A. warraensis. The two species are similar in general colouration, and have a medial, oblique ovipositor guide on the hind coxae. However, the face is rugulose in A. umbackae and punctate-rugose in A, warraensis. See key for differences in body and ovipositor length.
description: Published as part of Jennings, John T., Parslow, Ben A. & Austin, Andrew D., 2018, Systematics of the parasitoid wasp genus Aulacus Jurine (Hymenoptera: Evanioidea: Aulacidae) from Australia, pp. 1-113 in Zootaxa 4538 (1) on pages 88-89, DOI: 10.11646/zootaxa.4538.1.1, http://zenodo.org/record/3771367