Parastephanellus brevicoxalis Hong, van Achterberg & Xu, 2011

Chen, Hua-yan, Achterberg, Cornelis van & Xu, Zai-fu, 2016, Descriptions of a new species of Foenatopus Smith from China and the male of Parastephanellusbrevicoxalis (Hymenoptera, Stephanidae), ZooKeys 612, pp. 113-123 : 118-121

Taxon classification Animalia Hymenoptera Stephanidae

Parastephanellus brevicoxalis Hong, van Achterberg & Xu, 2011 Figs 12, 13-15, 16-21

Parastephanellus brevicoxalis Hong, van Achterberg & Xu 2011: 39.

Material examined.

Holotype, ♀ (ZJUH), CHINA: Zhejiang, Wuyanling Provincial Nature Reserve, 29. VII.2005, Peng Xu, No. 200605074. Other material. 1♂ (SCAU): CHINA: Guangdong, Nanling National Nature Reserve, 6.X.2004, Zaifu Xu.

Description.

Male. Body length 9.6 mm; fore wing length 5.3 mm.

Colour. Black (Fig. 12), except: frons yellowish-brown; coronal teeth, vertex medio-longitudinally and narrow area of vertex behind eyes dark brown, remainder of vertex reddish-brown; temple yellowish-brown with yellow streaks along eye; base of mandible yellow; palpi, scape, pedicel yellowish-brown; propleuron largely dark brown; fore leg, tibiae and tarsi of mid and hind legs yellowish-brown; hind trochanter and base of second tergite reddish-brown; wing membrane subhyaline; pterostigma and wing venation dark brown.

Head. Antenna with 28 segments (Fig. 13); frons coarsely reticulate-rugose (Fig. 14); three anterior coronal teeth acute, both posterior ones wide and arcuate, sculpture on coronal area from rugose anteriorly to longitudinally short carinate; behind level of coronal area with three strong, transverse straight carinae, followed by transversely rugose area, rugae coarse anteriorly, finer laterally near eye and posteriorly, striae posteriorly weaker and approximately extending to occipital carina (Fig. 15); temple smooth and shiny, relatively broad; gena round (Fig. 15).

Mesosoma. Neck (Fig. 16) short and robust, anteriorly distinctly emarginate, medio-posteriorly smooth, and with pairs of oblique lateral carinae, neck at much lower level than remainder of pronotum; pronotal fold and concavity absent; middle of pronotum steeply elevated and subvertical to neck, weakly transversely striate; posterior pronotum not differentiated from middle part, weakly striate dorsally and more or less smooth apically (Fig. 16), pronotal lobe with oblique striae; lateral oblique groove of pronotum narrow and indistinct, ventral area below it distinctly obliquely striate (Fig. 16); propleuron largely coriaceous, smooth medially; mesos cutum foveolate, anterior 0.2 and area between foveolae striate, latero-posteriorly somewhat rugose; notauli and median groove distinct and formed by some foveolae or crenulae; axilla rugose-foveolate; scutellum (Fig. 16) laterally densely foveolate and medially rugulose; mesopleuron rather robust, dorsally flat and largely smooth, convex ventral part shallowly rugose and pubescent, anteriorly pubescence denser and rugae coarser than posteriorly; convex part of metapleuron irregularly rugose and sparsely setose, ventral part below it rugulose; propodeum irregularly foveolate, foveolae changing from circular to suboval, area in between and inside foveolae rugulose, foveolae laterally and apically somewhat coalescent and reticulate (Fig. 16); fore wing (Fig. 21) with vein 1-M 1.9 × as long as vein 1-SR and 1.2 × vein m-cu; vein cu-a slightly postfurcal and subvertical; vein 2-SR 1.7 × as long as vein r; vein r ends at level of apex of pterostigma; vein r and vein 1-M distinctly curved; vein 1-SR 1.4 × as long as parastigmal vein; vein 3-CU1 basal 0.2 tubular, remainder largely nebulous, apically distinctly curved; hind coxa (Figs 17-19) robust, antero-dorsally rugose, anterior 0.6 of outer side distinctly compressed and sculpture changing from rugose to microreticulate, posterior part of hind coxa coarsely transversely striate; hind femur (Fig. 17) considerably swollen, densely and finely aciculate, ventrally with 2 large teeth and some denticles in between; hind tibia (Fig. 17) about 1.2 × as long as hind femur, basal narrow part about 1.4 × as long as widened part, outer side of hind tibia distinctly obliquely carinate, narrow part of inner side coriaceous, widened part of inner side distinctly depressed basally and densely bristly setose apically; basitarsus rather robust, ventral length about 3.8 × as long as its apical width.

Metasoma. First tergite 7.5 × as long as its maximum width, 2.6 × as long as second tergite and 0.8 × as long as remainder of metasoma, densely coarsely and rather regularly transversely striate, basal 0.1 rugose and with 2 distinct, short longitudinal carinae, apically narrowly smooth; basal 0.2 of second tergite with several short longitudinal carinae, remainder of tergite smooth; remainder of tergites densely finely microaciculate; pygidial process distinct and tubular apically.

Distribution.

Oriental: China (Zhejiang, Guangdong).

Biology.

Collected in July and October. Host not known.

Remark.

The male is similar to the female, except: body smaller (female body length 16.2 mm); head paler; antenna with 28 segments (33 segments in female); propleuron largely coriaceous, smooth medially (coriaceous and microreticulate in female); vein 1-M 1.9 × as long as vein 1-SR and 1.2 × as long as vein m-cu (vein 1-M 1.25 × as long as vein 1-SR and 0.9 × as long as vein m-cu in female); vein r ends at level of apex rather than behind of pterostigma; first tergite elongate, considerably longer than second tergite.