|Subancistrocerus clypeatus Tan, |
in Tan, Wang, Xu, Tang & Liu, 2023.
A newly discovered species, Subancistrocerus clypeatus sp. nov., from China (Zhejiang) is described and illustrated. In addition, Subancistrocerus kankauensis (Schulthess-Rechberg) is redescribed and photographed after studying the type series. A key to the genus Subancistrocerus de Saussure, 1855 from China is presented. The distribution of this genus is briefly discussed.
Keywords: China, key, new species, redescription
|Subancistrocerus clypeatus Tan, sp. nov., holotype, ♀|
A wing B propodeum posterior surface C fore tarsi D mid- and hind tibiae and pretarsus.
Subancistrocerus clypeatus Tan, sp. nov.
Diagnosis: The species is similar to two Chinese species S. kankauensis and S. compressus and to a species S. indochinensis from Laos mainly basis of the deep concavity of A11–A12 and A13 flat, reaching the basis of A11 and mid- basitarsomere curved, about 5.0× as long as wide, but can be separated from S. kankauensis and S. compressus by the characters indicated in the key. It also differs from S. indochinensis by the following characters: 1) in S. clypeatus sp. nov., clypeus of male slightly longer than wide (width: length = 2.0: 2.2) with apical emarginate (width: depth = 1.0: 0.2), but in S. indochinensis, clypeus as wide as long (width: length = 2.0: 2.0) with apical margin slightly emarginate (width: depth = 1.4: 0.2). 2) in S. clypeatus sp. nov., clypeus of female as wide as long (width: length = 2.0: 2.0) with apical slightly margin emarginate (width: depth = 1.4: 0.2), black laterally, yellow medially with a black transverse spot, while in S. indochinensis, the clypeus of female slightly wider than long (2.5: 2.3) with apical margin slightly emarginate (width: depth = 1.4: 0.2), black with a yellow transverse band basally and two yellow spots above the apical margin. 3) apical yellow band of T3 and S3 present in S. clypeatus sp. nov., but absent in S. indochinensis.
Etymology: The new species is named from Latin “clypeus, shield” referring to its shield shaped patch on the middle of female clypeus for the depression bordered by two longitudinal sinuate carinae.
Jiang-Li Tan, Meng Wang, Hongli Xu, Yan Tang and Ying Liu. 2023. Key to the Species of the Genus Subancistrocerus de Saussure, 1855 (Hymenoptera, Vespidae, Eumeninae) from China with Description of A New Species. Journal of Hymenoptera Research. 95: 113-127. DOI: 10.3897/jhr.95.96903