Abstract
The phylogenetic tree of Chinese Trigonidiinae species was reconstructed based on one mitochondrial fragment (COI) and two nuclear ribosomal loci (18S and 28S). According to the concatenated trees, we define four genus groups with high nodal supports. The subgenus Paratrigonidium should be upgraded to genus status. A new genus Abstrigonidium He gen. nov. is established and Paratrigonidium chloropodum is selected as type species (A. chloropodum comb. nov.). Amusurgus (Paranaxipha) fujianensis is moved to genus Sectus as S. fujianensis comb. nov. A new species named as Emerasoma curvicerca He gen. et sp. nov. is reported. It differs from other genera by asymmetric genitalia, and lacking stridulatory files and mirror. The type specimens are deposited in Museum of Biology, East China Normal University (ECNU).
References
Brunner von Wattenwyl, C. (1893) Revision du systeme des Orthopteres et description des especes rapportees par M. Leon Fea de Birmanie. Annali del Museo civico di Storia naturale di Genova, 2 (13), 1–230.
https://doi.org/10.5962/bhl.title.5121
Chintauan-Marquier, I.C., Legendre, F., Hugel, S., Robillard, T., Grandcolas, P., Nel, A., Zuccon, D. & Desutter-Grandcolas, L. (2016) Laying the foundations of evolutionary and systematic studies in crickets (Insecta, Orthoptera): a multilocus phylogenetic analysis. Cladistics, 32 (1), 54–81.
https://doi.org/10.1111/cla.12114
Chopard, L. (1925) The Gryllidae of Ceylon in the British Museum Collections. Annals and Magazine of Natural History, London, 15 (89), 505–536.
https://doi.org/10.1080/00222932508633242
Chopard, L. (1936) Quelques Gryllides asiatiques de la collection du Muséum d'Entomologie de Lund. Opuscula Entomologica, 1, 42–44.
Chopard, L. (1936) The Tridactylidae and Gryllidae of Ceylon. Ceylon Journal of Science, Biological Science, 20, 9–87.
Chopard, L. (1968) Pars 12: Gryllides. In: Beier, M. (Ed.), Orthopterorum Catalogus. Dr. W. Junk N.V., Gravenhage, pp. 215–500.
Cigliano, M.M., Braun, H., David, C.E. & Otte, D. (2020) Orthoptera Species File. Available from: http://Orthoptera.SpeciesFile.org (accessed 19 November 2020)
Darriba, D., Taboada, G.L., Doallo, R. & Posada, D. (2012) jModelTest 2: more models, new heuristics and parallel computing. Nature methods, 9 (8), 772.
https://doi.org/10.1038/nmeth.2109
Giribet, G., Carranza, S., Riutort, M., Baguna, J. & Ribera, C. (1999) Internal phylogeny of the Chilopoda (Myriapoda, Arthropoda) using complete 18S rDNA and partial 28S rDNA sequences. Philosophical Transactions of the Royal Society of London, Series B, Biological Sciences, 354, 215–222.
https://doi.org/10.1098/rstb.1999.0373
Gorochov, A.V. (1987) On the cricket fauna of the subfamilies Euscyrtinae, Trigonidiinae and Oecanthinae (Orthoptera, Gryllidae) of eastern Indochina. In: Medvedev, L.N. (Ed.), Entomofauna of Vietnam. Academija Nauk SSSR, Moscow, pp. 5–17.
Hall, T.A. (1999) BioEdit: A user-friendly biological sequence alignment editor and analysis program for Windows 95/98/NT. Nucleic Acids Symposium Series, 41 (2), 95–98.
He, Z.-Q. (2018) A checklist of Chinese crickets (Orthoptera: Gryllidea). Zootaxa, 4369 (4), 515–535.
https://doi.org/10.11646/zootaxa.4369.4.4
He, Z.-Q., Li, K., Fang, Y. & Liu X.-W. (2010) A taxonomic study of the genus Amusurgus Brunner von Wattenwyl from China (Orthoptera, Gryllidae, Trigonidiinae). Zootaxa, 2423 (1), 55–62.
https://doi.org/10.11646/zootaxa.2423.1.4
He, Z.-Q., Liu, Y.-Q., Lu, H., Wang, H.-Q., Wang, P. & Li, K. (2017) A new species of Paratrigonidium Brunner von Wattenwyl, 1893 from Hainan, China (Orthoptera: Trigonidiidae; Trigonidiinae). Zootaxa, 4363 (1), 124–128.
https://doi.org/10.11646/zootaxa.4363.1.5
Ichikawa, A. (2001) New species of Japanese crickets (Orthoptera: Grylloidea) with notes on certain taxa. Tettigonia, 3, 45–58.
Jarvis, K.J., Haas, F. & Whiting, M.F. (2005) Phylogeny of earwigs (Insecta: Dermaptera) based on molecular and morphological evidence: reconsidering the classification of Dermaptera. Systematic Entomology, 30, 442–453.
https://doi.org/10.1111/j.1365-3113.2004.00276.x
Kumar, S., Stecher, G. & Tamura, K. (2016) MEGA7: Molecular evolutionary genetics analysis Version 7.0 for bigger datasets. Molecular Biology and Evolution, 33 (7), 1870–1874.
https://doi.org/10.1093/molbev/msw054
Lu, H., Wang, H.-Q., Li, K., Liu, X.-W. & He, Z.-Q. (2018) Settlement of the classification of Svistella Gorochov and Paratrigonidium Brunner von Wattenwyl using morphology and molecular techniques, with the description of a new species from Yunnan, China (Orthoptera: Trigonidiidae: Trigonidiinae). Zootaxa, 4402 (1), 175–181.
https://doi.org/10.11646/zootaxa.4402.1.9
Ma, L.-B. (2018) Anaxiphomorpha hexagona sp. n., a new, unusual swordtail cricket collected from Motuo County, Xizang, China (Orthoptera: Grylloidea: Trigonidiidae: Trigonidiinae). Zootaxa, 4418 (2), 197–200.
https://doi.org/10.11646/zootaxa.4418.2.10
Ma, L.-B., Jing, X. & Zhang, T. (2019) A new species and synonym of Svistella Gorochov, 1987 (Orthoptera: Trigonidiidae: Trigonidiinae) from China. Zootaxa, 4619 (3), 595–600.
https://doi.org/10.11646/zootaxa.4619.3.13
Ma, L.-B. & Pan, Z.-H. (2019) New taxa of Trigonidiini (Orthoptera: Grylloidea: Trigonidiidae: Trigonidiinae) from China. Zootaxa, 4619 (3), 563–570.
https://doi.org/10.11646/zootaxa.4619.3.9
Nguyen, L.T., Schmidt, H.A., von Haeseler, A. & Minh, B.Q. (2014) IQ-TREE: a fast and effective stochastic algorithm for estimating maximum-likelihood phylogenies. Molecular Biology and Evolution, 32 (1), 268–274.
https://doi.org/10.1093/molbev/msu300
Otte, D. & Alexander, R. . (1983) Australian Crickets (Orthoptera: Gryllidae). Academy of Natural Sciences Monograph 22. Allen Press, Philadelphia, Pennsylvania, 477 pp.
Pan, C.-Y., Hu, J., Zhang, X. & Huang, Y. (2006) The DNA barcoding application of mtDNA COI gene in seven species of Catantopidae (Orthoptera). Entomotaxonomia, 28, 103–110.
Storozhenko, S.Y. & Paik, J.C. (2007) Orthoptera of Korea. Vladivostok, Dalnauka, 232 pp.
Tan, M.K., Baroga-Barbecho, J.B., Japir, R., Chung, A.Y., Wahab, R.B.H.A. & Yap, S.A. (2020) A taxonomic study on the Bornean and Philippines sword-tailed crickets in the genus Rhicnogryllus Chopard, 1925 (Orthoptera: Trgonidiidae; Trigonidiinae). Zootaxa, 4763 (2), 217–230.
https://doi.org/10.11646/zootaxa.4763.2.5
Walker, T.J. & Masaki, S. (1989) Natural history of crickets. In: F. Huber, T.E., Moore, W.L. (Eds.), Cricket Behavior and Neurobiology. Cornell University Press, Ithaca, New York, pp. 1–42.
Whiting, M.F. (2002) Mecoptera is paraphyletic: multiple genes and phylogeny of Mecoptera and Siphonaptera. Zoologica Scripta, 31, 93–104.
https://doi.org/10.1046/j.0300-3256.2001.00095.x
Yin, H.-S. & Liu, X.-W. (1995) Synopsis on the classification of Grylloidea and Gryllotalpoidea from China. Shanghai Scientific and Technological Literature, Shanghai, 237 pp.