Two new species of the genus Ancistrocerus Wesmael (Hymenoptera, Vespidae, Eumeninae) from China, with a key to the Oriental species Author You, Ju Author Chen, Bin Author Li, Ting-jing text ZooKeys 2013 303 77 86 http://dx.doi.org/10.3897/zookeys.303.4922 journal article http://dx.doi.org/10.3897/zookeys.303.4922 1313-2970-303-77 Ancistrocerus deqinensis You & Li sp. n. Figs 7-14 Material examined. Holotype.♂, China, Yunnan, Diqing, Deqin County, 28°29.03'N , 98°54.63'E , 3467 m, 19. VII. 2011, Tingjing Li, No. 201107191 (CQNU). Paratypes. 4♂♂,the same data as holotype, No. 201107192-201107195 (CQNU). Description. Male: Body length 7.0-7.8 mm (Fig. 7), forewing length 7.5-8.0 mm. Black; the following parts are yellow: a lower frontal spot, clypeus, a spot between antennal socket and eye, almost mandible; the parts are bright ferruginous: labrum, antennae ventrally, a spot on tempora, an anterior band on pronotum, outside half of tegula (Fig. 14), apical bands on metasomal terga I-VI and sterna I-VI , a median spot on sternum VII (Fig. 10), and apex of femora to tarsi V in all legs. Head . Densely covered with long setae, setae distinctly longer than the distance between the posterior ocelli; vertex with dense and coarse punctures, interspaces between punctures ridge-like (Fig. 9); width of clypeus equal to or slightly longer than length, clypeus moderately emarginate, almost semicircular, apically with acute teeth, sparse punctures and long setae (Fig. 8); antennal scape with sparse and small punctures, dense and long setae; antennal article XIII folded backward, reaching nearly the base of article XI (Fig. 12). Mesosoma. Densely covered with long setae, similar to those on head; pronotal carina weaker in dorsum, but acutely produced in lateral corner. Mesopleuron reticulate, with large and irregular punctures; pronotum and mesonotum with dense and coarse punctures, smaller than those on mesopleuron; tegula with sparse punctures and long setae (Fig. 14); scutellum flat, metanotum convex, punctures on scutellum and metanotum similar to those on pronotum and mesonotum; marginal and median carinae of propodeum well developed, convavity of propodeum with striae; femora with dense long setae and sparse small punctures. Metasoma. Densely covered with long setae, as long as the distance between the posterior ocelli; width of tergum I slightly less than 2 times length, with somewhat dense large punctures (interspaces smaller than punctures), transverse carina well developed, with a wide and deep median notch; apical bands on metasomal sterna I-VI complete; width of tergum II: length = 2.4: 2.0, the bottom of basal sulcus with longitudinal keels; punctures on terga II-VI much smaller than those on tergum I; sternum II basally with transverse uniform sulcus, not truncate behind sulcus, in profile somewhat concave (Fig. 11), punctures on sterna II-VI much sparser than those on tergum II. Female. Unknown. Figures 7-14. Male of Ancistrocerus deqinensis You,sp. n. 7 general habitus 8 frons and clypeus 9 head in dorsal view 10 metasoma in ventral view 11 metasomal sternum II in profile 12 antennal articles 13 general habitus in profile 14 tegula. Distribution. China (Yunnan). Remarks. The species is similar to Ancistrocerus parietum (Cameron, 1900) from Europe to northeast of China and North America, in the shape of the clypeus, punctures on the mesosoma, transverse carina of tergum I well developed and with a wide and deep median notch. However, it can be distinguished from similarspecies and other members of the genus with the following characters: body markings bright ferruginous, tegula with sparse punctures and long setae (Fig. 14), terga II-VI with dense long setae (Fig. 13), apical bands on metasomal sterna I-VI complete and sternum VII with a medial spot (Fig. 10). Etymology. It is named after the type locality of the species, Deqin County in Yunnan Province of China. Key to the Oriental species of Ancistrocerus

Fig. 8	Ancistrocerus deqinensis
Gusenleitner 2010	Ancistrocerus extremus
Fig . 5	Ancistrocerus transpunctatus
Ancistrocerus antoni
Giordani Soika 1976	Ancistrocerus aureovillosus
Giordani Soika 1994	Ancistrocerus handschini
Giordani Soika 1994	Ancistrocerus borneanus
Ancistrocerus rufoluteus
Yamane and Gusenleitner 1993	Ancistrocerus montuosus
Kim and Yamane 2009	Ancistrocerus nigricornis
Yamane and Gusenleitner 1993	Ancistrocerus terayamai
Ancistrocerus hirsutus hirsutus
Ancistrocerus xanthozonus
Ancistrocerus antilopeantilope
Kim and Yamane 2009	Ancistrocerus philippinus
Ancistrocerus sikhimensis
Giordani Soika 1991	Ancistrocerus arcanus
Giordani Soika 1991	Ancistrocerus waltoni