Aulacus magnus, Chen, Hua-yan, Turrisi, Giuseppe Fabrizio & Xu, Zai-fu, 2016

Chen, Hua-yan, Turrisi, Giuseppe Fabrizio & Xu, Zai-fu, 2016, A revision of the Chinese Aulacidae (Hymenoptera, Evanioidea), ZooKeys 587, pp. 77-124 : 81

Taxon classification Animalia Hymenoptera Aulacidae

Aulacus magnus sp. n. Figs 1, 2-7, 8-12, 122

Material examined.

Holotype, ♀ (IZCAS), CHINA: Hainan, Mt. Jianfengling, 670 m, 6.V.1964, IOZ(E)1903950.

Etymology.

From the Latin adjective “magnus”, meaning “large”, a noun in apposition.

Diagnosis.

Antenna entirely black; forewing with large dark brown spots under stigma and at apex; head largely smooth with sparse and fine punctures; lateroventral margin of pronotum without teeth; scutellum mostly rugose with nearly smooth area posteriorly; pretarsal claw with one basal large tooth-like process; ovipositor 0.9 × forewing length.

Description.

Holotype. Female. Body length 16.2 mm; forewing length 14.0 mm.

Colour. Black except: apical half of mandible reddish-brown; forewing hyaline, with large dark brown spot under stigma and large dark brown spot at apex; hind wing hyaline.

Head. From above, 1.2 × wider than long, shiny; lower interocular distance 1.5 × eye height; malar space 0.3 × eye height; occipital margin straight; temple, from above, rounded, slightly longer than eye length; occipital carina 0.1 × diameter of an ocellus; POL:OOL=0.8; head largely smooth with sparse and fine punctures (distance between punctures 1.0-4.0 × diameter of a puncture); A3 5.0 × longer than wide; A4 6.0 × longer than wide, and 1.4 × longer than A3; A5 5.5 × longer than wide, and 1.3 × longer than A3.

Mesosoma. Pronotum largely rugose, coarsely areolate-rugose in middle, with lateroventral margin regularly rounded and without teeth; propleuron shiny and largely smooth with sparse and fine punctures; mesoscutum transverse-carinate anteriorly, areolate-rugose posterior to notaulus, prescutum not emarginate medially; notaulus shallow and narrow; scutellum mostly rugose with nearly smooth area posteriorly; axilla oblique-rugulose; metanotum irregularly rugose; propodeum coarsely areolate-rugose; mesopleuron and metapleuron coarsely areolate-rugose; forewing with vein 2-rs+m long: cells SM2 and D1 distantly separated; hind wing veins faint to absent; hind coxa with dorsal surface transverse-carinate basally, densely and finely punctate apically, and ventral surface rugulose-punctate to punctate, punctures coarse and dense; hind basitarsus 12.0 × longer than wide, 1.2 × longer than tarsomeres 2-5; pretarsal claw with one large basal tooth-like process.

Metasoma. Pyriform (lateral view), compressed laterally; petiole elongate, 7.0 × longer than wide; segments 1 and 2 polished and shiny; following segments with fine and dense punctures; ovipositor 0.9 × forewing length.

Male. Unknown.

Distribution.

China (Hainan).

Biology.

Collected in May. Host not known.