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| Living Svistella yayun He, sp. nov. A male B female. in Hou, Xu, Hu, Zhang, Wu, Gong et He, 2024. |
Abstract
The genus Svistella Gorochov, 1987 includes 10 species from Asia, with nine documented in China. In this study, a new species, Svistella yayun He, sp. nov., is described from Xizang, China. Morphologically, it resembles S. rufonotata (Chopard, 1932) but can be distinguished by a smaller inner tympanum, dark-brown setae on the 5th segment of the maxillary palp, and a rounded apex on the ectoparamere. To validate our morphological inferences and support the description of S. yayun sp. nov. as a new species, we performed a PCA based on bioacoustics parameters and molecular analysis. All Svistella species documented in China are distinguished by integrating their songs and DNA barcoding.
Key words: COI, DNA barcoding, PCA, songs, taxonomy, Zayu
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| Living Svistella yayun He, sp. nov. A male B female. |
Taxonomy
Order Orthoptera
Family Trigonidiidae
Subfamily Trigonidiinae
Genus Svistella Gorochov, 1987
Svistella yayun He, sp. nov.
Diagnosis: The new species is characterized as follows: small to medium body size for the genus; dark-brown setae on the 5th segment of maxillary palp; small, inner tympanum; hind femora without black stripe; tegmina unicolor. It is morphologically similar to S. rufonotata but differs in having dark-brown setae on the 5th segment of maxillary palp (Fig. 4A–F), an ectoparamere with rounded corner (Fig. 5A–C), and a smaller inner tympanum (Fig. 5D–G).
Etymology: The specific epithet yayun is for the Chinese phonetic alphabet, 雅韵, which means “beautiful music”.
Jing-Wen Hou, Yue Xu, Tian-Hao Hu, Zi-Heng Zhang, Shi-Yang Wu, Pu Gong and Zhu-Qing He. 2024. A New Species of Svistella Gorochov, 1987 from Xizang, China (Orthoptera, Trigonidiidae, Trigonidiinae). ZooKeys. 1193: 145-160. DOI: 10.3897/zookeys.1193.117612