Abstract
Here we report two new species of the swordtail crickets (Orthoptera: Trigonidiidae; Trigonidiinae) from Yunnan and Guangxi Province, China. One species (Trigonidium rubrumoculus sp. nov.) belongs to the genus Trigonidium, and we describe a new genus for the other species (Polycomus gen. nov., Polycomus exspiravit sp. nov.). The new genus resembles Amusurgus Brunner von Wattenwyl, 1893 in appearance but differs in the structure of the male genitalia. Descriptions, illustrations, and distributions of these new species are provided.
References
Brunner von Wattenwyl, K. (1893) Révision du système des orthoptères et description des espèces rapportées par M. Leonardo Fea de Birmanie. Annali del Museo Civico di Storia Naturale di Genova, Series 2, 13, 5–230. https://doi.org/10.5962/bhl.title.5121
Cigliano, M.M., Otte, D., Eades, D.C. & Braun, H. (2022) Orthoptera species file online. Version 5.0/5.0. Available from: http://Orthoptera.SpeciesFile.org (accessed 12 October 2021)
Gorochov, A.V. (1987) On the fauna of Orthoptera subfamilies Euscyrtinae, Trigonidiinae and Oecanthinae (Orthopera, Gryllidae) from eastern Indochina. In: Medvedev, L.N. (Ed.), Entomofauna V'etnama [Entomofauna of Vietnam]. Nauka, Moscow, pp. 5–17.
Gorochov, A.V. (2015) Evolution and taxonomic significance of the copulatory apparatus in Ensifera (Orthoptera). Part 2: Male genitalia in Grylloidea. Zoosystematica Rossica, 24 (1), 31–41. https://doi.org/10.31610/zsr/2015.24.1.31
Gorochov, A.V., Tan, M.K. & Lee, C.Y. (2018) Taxonomic notes on the cricket subfamilies Nemobiinae and Trigonidiinae (Orthoptera: Gryllidae) from islands and coasts of the Pacific and Indian Ocean. Zoosystematica Rossica, 27 (2), 290–321. https://doi.org/10.31610/zsr/2018.27.2.290
He, Z.Q., Li, K., Fang, Y. & Liu, X.W. (2010) A taxonomic study of the genus Amusurgus Brunner von Wanttenwyl from China (Orthoptera, Gryllidae, Trigonidiinae). Zootaxa, 2423 (1), 55–62. https://doi.org/10.11646/zootaxa.2423.1.4
Ichikawa, A. (2001) New species of Japanese crickets (Orthoptera; Grylloidea) with notes on certain taxa. Tettigonia: Memoirs of the Orthopterological Society of Japan, 3, 45–58
Tan, M.K. (2022) A new aboreal species of sword-tailed cricket (Orthoptera: Trigonidiidae: Trigonidiinae) from the mangrove in Singapore. Zootaxa, 5092 (4), 453–463. https://doi.org/10.11646/zootaxa.5092.4.4
Tan, M.K., Baroga-Barbecho, J.B. & Yap, S.A. (2019) Taxonomic notes on Trigonidium and related groups with one new species from the Philippines (Orthoptera: Trigonidiidae; Trigonidiinae). Zootaxa, 4564 (2), 573–587. https://doi.org/10.11646/zootaxa.4564.2.13