Corresponding author: Ting-jing Li (
Academic editor: Michael Engel
Two new species, namely
The key characters of the genus
The examined specimens were deposited in the Institute of Entomology and Molecular Biology, Chongqing Normal University, Chongqing, China (CQNU); Department of Entomology, Yunnan Agricultural University, Yunnan, China (YNAU). Morphological terminology follows
Holotype. ♂, China, Yunnan, Diqing, Weixi County, Tacheng Town,
Male: Body length 7.5–8.0 mm (
Head. Densely covered with long setae, as long as the distance between the posterior ocelli; vertex with dense and coarse punctures, punctures almost connected (
Mesosoma. Setae on mesosoma slightly sparser and shorter than those on the head; pronotal carina weaker on dorsum, but acutely produced in lateral corner; mesopleuron with large and irregular punctures; pronotum and mesonotum with dense and coarse punctures, smaller than those on mesopleuron; tegula slightly smooth and shining, with fine punctures; scutellum flat, metanotum convex, punctures on scutellum and metanotum similar to those on pronotum and mesonotum; marginal and median carinae of propodeum developed, apical convavity of propodeum densely with striae; femora with short white pubescence.
Metasoma. Setae on metasomal tergum I as long as those on mesosoma, but much sparser; length of setae on terga II–VI less than 1/2 times those on tergum I; width of tergum I 2.3 times length, transverse carina well developed and with a narrow and shallow median notch; width of tergum II: length = 2.3: 2.4, the bottom of basal sulcus with longitudinal keels, punctures on metasomal tergum II distinctly weaker than those on tergum I, apical margin of tergum II with a transverse row of big punctures (
Female. Unknown.
Male of
The species is similar to
China (Yunnan).
It is named after its metasomal tergum II with a transverse row of big punctures.
Holotype.♂, China, Yunnan, Diqing, Deqin County,
Male: Body length 7.0–7.8 mm (
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 (
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 (
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 (
Female. Unknown.
Male of
China (Yunnan).
The species is similar to
It is named after the type locality of the species, Deqin County in Yunnan Province of China.
1 | Setae on frons and vertex distinctly longer than the distance between the posterior ocelli; metasomal terga II–VI with dense long setae | 2 |
– | Setae on frons and vertex as long as or shorter than the distance between the posterior ocelli; metasomal terga II–VI with very sparser and shorter setae | 3 |
2 | In male clypeus shallowly emarginate, almost semicircular ( |
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– | In male clypeus deeply emarginate, distinctly deeper than semicircular ( |
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3 | Metasomal sternum II behind basal sulcus with a somewhat deep truncation, nearly as high as length of median part of basal sulcus, anterior truncate slope of sternum II distinguished from posterior horizontal part in profile | 4 |
– | Metasomal sternum II behind basal sulcus with shallow truncation, less than half length of median part of basal sulcus, or almost lack of truncation, sternum II smoothly convex in profile | 12 |
4 | Length of clypeus longer than width | 5 |
– | Length of clypeus shorter than width | 7 |
5 | Apical margin of metasomal tergum II with a transverse row of big punctures, forming a transverse furrow ( |
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– | Apical margin of metasomal tergum II normal, without a transverse row of big punctures | 6 |
6 | Antennal scape with sparse small punctures, interspaces always larger than punctures | |
– | Antennal scape with dense large punctures, interspaces equal to or smaller than punctures ( |
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7 | In profile, border rounded between anterior slope and posterior horizontal part of metasomal sternum II | 8 |
– | In profile, border angled between anterior slope and posterior horizontal part of metasomal sternum II | 11 |
8 | Clypeus with dense punctures, interspaces smaller than punctures | 9 |
– | Clypeus with sparse punctures, interspaces larger than punctures | 10 |
9 | Propodeal dorsum with distinct punctures and shining ( |
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– | Propodeal dorsum with indistinct punctures and dull ( |
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10 | Metasomal terga III–V with apical bands (Gusenleitner 1996) | |
– | Metasomal terga III–V without apical bands ( |
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11 | Metasomal terga III–IV with apical bands; female without a spot between antennal socket and eye ( |
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– | Metasomal terga III–IV without apical bands; female with a yellow spot between antennal socket and eye ( |
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12 | Mesosoma and metasoma with ivory–white spots (Meade-Waldo 1910) | |
– | Mesosoma and metasoma with yellow or ferruginous spots | 13 |
13 | Metasomal tergum III with apical band | 14 |
– | Metasomal tergum III without apical band | 15 |
14 | Concavity of propodeum laterally sculptured, and apically dull (Gusenleitner 1996) | |
– | Concavity of propodeum not laterally sculptured, and apically shining | |
15 | Metasomal tergum I with sparse punctures, interspaces equal to or larger than punctures | 16 |
– | Metasomal tergum I with dense punctures, interspaces always smaller than punctures | 17 |
16 | Metanotum convex; propodeum with well developed superior ridges ( |
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– | Metanotum not convex; propodeum with weak superior ridges (Giordani Soika 1971) | |
17 | Head and mesosoma with large punctures; mandible with a yellow spot; antennal scape always with a yellow spot; clypeus in female basally with two yellow spots ( |
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– | Head and mesosoma with small punctures; mandible and antennal scape in male, and clypeus in female, black ( |
We are very grateful to James M. Carpenter (American Museum of Natural History, New York, USA), Josef Gusenleitner (Linz, Austria) and Prof. Seike Yamane (Kagoshima University, Kagoshima, Japan) for providing copies of many references and helps; and we express our hearty thanks to Profs Wanzhi Cai and Xinli Wang (China Agricultural University, Beijing, China), Prof. Guodong Ren (Hebei University, Baoding, China), Prof. Meicai Wei (Central South University of Forestry and Technology, Changsha, China), Prof. Qiang Li (Yunnan Agricultural University, Kunming, China), Profs Shanyi Zhou and Jianhua Huang (Guangxi Normal University, Guilin, China), and Prof. Zhabu Nengnai and Dr. Xiaoshuan Bai (Inner Mongolia Normal University, Hohhot, China) for providing us with the specimens deposited in the insect collections under their care. This study was funded by the National Natural Science Foundation of China (Nos: 31000976, 31071968), the Funding Program for Young Backbone Teachers of Colleges and Universities in Chongqing, and Key Foundation of Chongqing Normal University (12XLZ07).