Corresponding author: Zai-fu Xu (
Academic editor: M. Sharkey
A new species of the stephanid genus
Chen H-y, van Achterberg C, Xu Z-f (2016) Descriptions of a new species of
The family
Descriptions of the species have been made under an Olympus SZ61 stereomicroscope, with lighting achieved through a 27W fluorescent lamp. Digital images were taken with a digital microscope KEYENCE® VHX-5000 (Osaka, Japan), and plates were edited with the programs ACDSee 10.0 and Photoshop CS 8.0.1.
Morphological nomenclature follows van
The female holotype of Zhejiang University South China Agricultural Universtiy, Guangzhou, China
The Chinese
Holotype, ♀ (
Named after the collector Dr. Nasen Wei.
Frons finely and transversely carinate-rugose (Fig.
Holotype.
Male. Unknown.
Oriental: China (Yunnan).
Collected in July. Host not known.
In the key to species of the genus
8 | Middle pale stripe of frons comparatively wide dorsally (Figs 124, 133 in |
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– | Middle pale stripe of frons absent (Fig. |
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9 | Pronotum with posterior half distinctly striate or carinate (Figs 175, 176 l.c.); face of female without distinct pale lateral stripes (Fig. 182 l.c.); frons comparatively coarsely sculptured (Fig. 182 l.c.) |
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– | Pronotum with posterior half mainly reticulate-coriaceous (Fig. |
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10 | Middle stripe of frons abent (Fig. |
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– | Middle stripe of frons present (Fig. |
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11 | Ovipositor sheath completely black (Fig. 54 l.c.); anterior half of pronotum in lateral view without transverse carinae and flat medially or slightly impressed (Fig. 51 l.c.); fore wing with vein 2-CU1 absent (Fig. 49 l.c.) |
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– | Ovipositor sheath with ivory subapical band (Figs 62, 73 l.c.); anterior half of pronotum in lateral view with transverse carinae and depressed medially (Fig. 79 l.c.); fore wing with vein 2-CU1 weakly developed, 0.2 × as long as cu-a (Fig. 67 l.c.) |
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At present five species of
Holotype, ♀ (
Oriental: China (Zhejiang, Guangdong).
Collected in July and October. Host not known.
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.
We are very grateful to Prof. Dr. Mingyi Tian (South China Agricultural Universtiy, Guangzhou, China) for providing imaging systems. We are very indebted to subject editor Dr. Michael Sharkey and to reviewer Dr. Alejandro Zaldivar-Riveron for their useful suggestions which improved the manuscript. This study is partly supported by the National Basic Research Program of China (No. 2013CB127600).