Aulacus magnus
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Ordo: Hymenoptera
Familia: Aulacidae
Genus: Aulacus
Name
Aulacus magnus Chen & Turrisi & Xu, 2016 sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
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.
Original Description
- Chen, H; Turrisi, G; Xu, Z; 2016: A revision of the Chinese Aulacidae (Hymenoptera, Evanioidea) ZooKeys, (587): 77-124. doi
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