Subancistrocerus jinghongensis Li & Chen, 2014

Li, Ting-jing & Chen, Bin, 2014, Description of two new Chinese Subancistrocerus de Saussure (Hymenoptera, Vespidae, Eumeninae), with a key to the Chinese species, Journal of Hymenoptera Research 39, pp. 47-57 : 49-52

Subancistrocerus jinghongensis Li & Chen sp. n.

Figs 12 -19

Material examined.

Holotype, ♀, China, Yunnan Province, Xishuangbanna State, Jinghong City, Ancient Forest Park, 22°01'49.76"N, 100°52'25.27"E, 758 m, 31.VII.2003, Qian Jiang, No. 1004044 (CQNU). Paratype: 1 ♂, same data as holotype, No. 1004045 (CQNU).

Description.

Female (Figs 12 , 17 ): body length 6.0 mm, forewing length 5.5.0 mm. Body black; with the following parts whitish yellow to yellow: apex of ocular sinus, interantennal spot, postocular spot, scape ventrally, clypeus except medial spot and apical margin, contiguous triangular pronotal spots, parategula, spots on metanotum, apex of fore femur and fore tibia outside, spots of apex of mid femur and tibia outside, and apical bands of T1, T2 and S2; antennae ventrally except scape yellow to brown; apical margin and medial spot of clypeus dark brown; mandible basally white yellow and apically ferruginous to dark brown; tegula brownish yellow; fore tibia inside to tarsal apex largely ferruginous, and other tarsi brownish yellow to brown; other parts of mid leg dark brown.

Head. Frons densely punctate and reticulate; clypeus sparsely punctate and setose, medially with wide longitudinal spade-formed depression, and clypeal margin bluntly angulate (Fig. 17 ), length of clypeus: width = 32:35, apical width: depth of emargination = 1:0.1, clypeal margin laterally angulate (Fig. 17 ), antennae lacking.

Mesosoma. Length: width = 25:16; pronotal carina laterally somewhat rounded; pronotum, scutum, scutellum and mesopleuron except posteriorly densely punctate, punctures obviously larger and deeper than those on head, interspaces with ridges; punctures on metanotum sparser than those above, left and right parts of metanotum uncomtoguously tiled (Fig. 12 ); metapleuron impunctate and somewhat rugose; propodeum coarse, with lateral carina and densely reticulate ridges, side somewhat coriaceous.

Metasoma. Width of T1: length = 6.3:4.5, T1 and T2 densely punctate, S1 impunctate and coriaceous; punctures on S2 sparser than those on T1 and T2; T1, T2 and S2 with thin lamellate apical margin, respectively, in front view, the lamellate apical margin invisible, T2 subapically somewhat depressed.

Male (Figs 13 - 16 , 18 - 19 ). Body length 5.5 mm, forewing length 5.5.0 mm. Sculpture, punctuation, setae, and coloration as in female except as follows: clypeus entirely whitish yellow (Fig. 16 ); parategula brownish yellow; two spots on metanotum smaller than those in female; fore and mid tarsomere I with long whitish spot, respectively (Figs 18 - 19 ), other parts of mid leg dark ferruginous; clypeus medially somewhat convex and without depression, length: width=15:13 (Fig. 16 ); length of A4: width = 6:7, length of A5: width = 7:8, A4-A9 outside with prominent carina, respectively, A10 apically to A12 ventrally concave, length of A11: width = 19:17, A13 foliaceous, from base to apex gradually narrowing and its apex reaching the base of A10 (Figs 14 - 15 ), length of A13: width = 2:1; transverse ridges on metapleuron and side of propodeum more obvious and denser than those in female; metanotum narrower than that in female (Fig. 13 ); fore femur normal, fore tarsomere 1 arched, and almost equal to the following segments together (Fig. 18 ); mid tarsomere 1 curved and short, much shorter than the following segments together (Fig. 19 ); width of T1: length = 6.4:4.3, S1 normal; T2 medially somewhat convex, its apical margin normal, with a regular series of big punctures, not reflected, and its apex more depressed than that in female.

Recognition.

The species is similar to S. reflexus Giordani Soika, 1994 from Philippines in mid tarsomere 1 in male curved and short, much shorter than the following segments together (Fig. 19 ), and A13 foliaceous, gradually narrowing from base to apex, and its apex reaching the base of A10 (Figs 14 - 15 ). It differs from that species and all other members of the genus by the following character combination: apical margin of T2 normal, not reflected; fore tarsomere 1 arched, and almost equal to the following segments together (Fig. 18 ); and body length obviously smaller than in Subancistrocerus reflexus .

Distribution.

China (Yunnan).

Etymology.

The specific name is the Latined adjective jinghongensis, with reference to the region from which the type-specimens were collected.

Figures

Figures 12 - 19. Subancistrocerus jinghongensis sp. n. 12 habitus of holotype (dorsal view), ♀ 13 habitus of paratype (dorsal view), ♂ 14 antennae (ventral view), ♂ 15 antennae (lateral view), ♂ 16 clypeus, ♂ 17 clypeus, ♀ 18 fore tarsus (dorsal view), ♂ 19 mid tarsomere 1, ♂. Scale bar for 10 - 18 = 1.0 mm; for 19 = 0.1 mm.