Description of a new species of Pseudomegischus van Achterberg from China (Hymenoptera, Stephanidae) Author Chen, Hua-yan Author Hong, Chun-dan Author van Achterberg, Cornelis Author Xu, Zai-fu text ZooKeys 2016 601 119 125 http://dx.doi.org/10.3897/zookeys.601.9499 journal article http://dx.doi.org/10.3897/zookeys.601.9499 1313-2970-601-119 E35613130E9C4913872234B592250AA8 Taxon classification Animalia Hymenoptera Stephanidae Pseudomegischus yunnanensis Chen & Xu sp. n. Figs 1‒4, 5‒11, 12‒15 Material examined. Holotype, ♀ (SEMC), CHINA: Yunnan, Xishuangbanna, Menglun, 1000 m, 3.VI.2009, No. 34001533. Etymology. Named after the province of the type locality. Diagnosis. Frons coarsely obliquely rugose near anterior coronal tooth, transversely rugose ventrally (Fig. 1); vertex transversely carinate antero-medially, becoming smooth posteriorly (Fig. 3); middle part of pronotum transversely rugose anteriorly, largely smooth and without distinct carina posteriorly (Fig. 4); scutellum smooth medially, foveolate laterally (Figs 4, 7); propodeum coarsely and densely foveolate, without distinct smooth interspaces (Fig. 7); first tergite largely transversely rugose (Fig. 13). Figures 1-4. Pseudomegischus yunnanensis sp. n., holotype, female. 1 Head frontal 2 head lateral 3 head dorsal 4 pronotum and mesonotum dorsal. Figures 5-11. Pseudomegischus yunnanensis sp. n., holotype, female. 5 Propleuron and mesopleuron lateral 6 mesopleuron, metapleuron and propodeum lateral 7 scutellum and propodeum dorsal 8 hind coxa dorsal 9 hind coxa lateral 10 hind femur and tibia lateral 11 hind tarsus lateral. Figures 12-15. Pseudomegischus yunnanensis sp. n., holotype, female. 12 Wings 13 first tergite dorsal 14 metasoma dorsal 15 apex of ovipositor sheaths. In the key to species of the genus Pseudomegischus by Tan et al. (2015) , the new species can be included by replacing couplet 3 as follows:

Pseudomegischus sulcifrons (Schletterer, 1889)
1210	4
Pseudomegischus celebensis van Achterberg, 2002
10112	5
Pseudomegischus notiochinensis Tan & van Achterberg, 2015
713	Pseudomegischus yunnanensis sp. n.

Description. Holotype. Female. Body length 21.2 mm; fore wing length 9.6 mm. Colour. Black, except: frons yellowish-brown; temple brown with yellow streak along eye, streak becoming widened near vertex; base of mandible yellow; palpi, vertex, scape, pedicle, tegula and base of femora dark brown; veins and pterostigma largely dark brown, but base of pterostigma ivory; wing membrane slightly brownish; ovipositor sheath blackish apically (Fig. 15). Head. Antenna with 41 segments; frons coarsely obliquely rugose near anterior coronal tooth, transversely rugose ventrally (Fig. 1); three anterior coronal teeth large and acute, both posterior ones arcuate and lamelliform, with two small lobe-shaped carinae on each side in front of both posterior ocelli; vertex transversely carinate antero-medially, becoming smooth posteriorly (Fig. 3); temple non-angulate, smooth and shiny (Fig. 2). Mesosoma. Neck short and robust, transversely rugose, neck at much lower level than middle part of pronotum (Fig. 4); middle part of pronotum transversely rugose anteriorly, largely smooth and without a distinct carina posteriorly; propleuron largely coriaceous with sparse small punctures, shiny and densely setose (Fig. 5); mesonotum sparsely and irregularly foveolate and area between foveae smooth; notauli and median groove distinct; scutellum smooth medially, foveolate laterally; axillae irregularly and rather densely foveolate; mesopleuron distinctly convex, convex part coarsely foveolate-rugose and covered with long whitish setae and dense short setae; metapleuron coarsely foveolate (Fig. 6); propodeum coarsely and densely foveolate, without distinct smooth interspaces (Fig. 7). Wings. Fore wing (Fig. 12): vein 1-M 3.1 x as long as vein 1-SR and curved; vein r ends slightly behind level of apex of pterostigma; first subdiscal cell robust, 3.2 x as long as its maximum width, vein cu-a entirely pigmented. Legs. Hind coxa robust, without tubercle dorsally, transversely and densely rugose (Figs 8, 9); hind femur widened, smooth and with long whitish setae, ventrally with two large acute teeth (the anterior one larger than posterior one) and four denticles in between (Fig. 10); hind tibia 1.2 x as long as hind femur, basal narrow part of hind tibia about 1.2 x as long as widened part, widened part ventrally distinctly obliquely carinate (Fig. 10); hind basitarsus subparallel-sided, length of hind basitarsus 4.8 x as long as wide medially and 3.8 x as long as second tarsal segment (Fig. 11). Metasoma. First tergite 9.0 x as long as its maximum width, 1.6 x as long as second tergite, cylindrical, largely transversely rugose (Fig. 13); remainder of tergites smooth and shiny (Fig. 14); length of ovipositor sheath 2.5 x length of fore wing. Male. Unknown. Distribution. Oriental: China (Yunnan). Biology. Collected in June. Host not known.