Abstract
This paper describes eight new cave-dwelling species of the genus Tachycines from Guizhou, Hunan, Guangxi and Sichuan, i.e. Tachycines (Gymnaeta) liboensis sp. nov., Tachycines (Gymnaeta) bifolius sp. nov., Tachycines (Gymnaeta) tuberus sp. nov., Tachycines (Gymnaeta) paradoxus sp. nov., Tachycines (Gymnaeta) umbellus sp. nov., Tachycines (Gymnaeta) nulliscleritus sp. nov., Tachycines (Gymnaeta) taenus sp. nov. and Tachycines (Gymnaeta) latiliconcavus sp. nov. The females of T. (G.) ferecaecus (Gorochov, Rampini & Di Russo, 2006) and T. (G.) proximus (Gorochov, Rampini & Di Russo, 2006) are first recorded. Moreover, we consider T. (G.) aspes (Rampini & Di Russo, 2008) as a valid species instead of a synonym of T. (G.) proximus (Gorochov, Rampini & Di Russo, 2006) according to obviously different reduction of fastigium verticis and eyes, higher number of spines on the hind tibia and the shape of male genitalia. Furthermore, Eutachycines crenatus (Gorochov, Rampini & Di Russo, 2006) should be retransferred to the subgenus Tachycines (Gymnaeta) due to the diagnosis of genus Eutachycines: dorsal sclerite of male genitalia with a protuberance in the upper part. Therefore, it should still belong to the subgenus Tachycines (Gymnaeta). In addition, morphological photographs of the eight new species and five known species are provided, including eyeless species.
References
Adelung, N. (1902) Beitrag zur Kenntnis der Paläarctischen Stenopelmatiden (Orthoptera, Locustodea). Annuaire du Musée Zoologique de l‘Académie Impériale des Sciences de St. Pétersbourg, 7, 55–75.
Alexiou, S., Di Russo, C. & Rampini, M. (2015) The cave crickets of the genus Dolichopoda from Evvia and Skyros islands: formal description of D. octhoniai and D. saraolacosi (Orthoptera: Rhaphidophoridae). Fragmenta Entomologica, 47 (2), 133–137.
https://doi.org/10.4081/fe.2015.141
Chopard, L. (1916) Diagnoses d’Orthoptères cavernicoles nouveaux (Stenopelmatidae). Bulletin de la Société entomologique de France, 20, 276–279.
Chopard, L. (1921) On some cavernicolous Dermaptera and Orthoptera from Assam. Records of the Indian Museum, 22, 511–527.
Cigliano, M.M., Braun, H., Eades, D.C., Otte, D. (2020) Orthoptera Species File Online. Version 5.0/5.0. Available from: http://Orthoptera.SpeciesFile.org (accessed 20 April 2020)
Clements, R., Sodhi, N.S., Schilthuizen, M. & Ng, A.P.K.L. (2006) Limestone karsts of Southeast Asia: Imperiled arks of biodiversity. Bioscience, 56 (9), 733–742.
https://doi.org/10.1641/0006-3568(2006)56[733:LKOSAI]2.0.CO;2
Di Russo, C., Alexiou, S. & Rampini, M. (2017) A new species of Dolichopoda (Orthoptera: Rhaphidophoridae: Dolichopodainae) from Western Greece. Zootaxa, 4290 (2), 380–384.
https://doi.org/10.11646/zootaxa.4290.2.9
Di Russo, C., Kofinas-Kallergis, G., Alexiou, S. & Rampini, M. (2019) New records of Dolichopoda (Orthoptera, Rhaphidophoridae) from Peloponnisos, Greece. Parnassiana Archives, 7, 55–63.
Di Russo, C., Rampini, M., Chimenti, C. & Alexiou, S. (2018) New species of Dolichopoda Bolívar, 1880 (Orthoptera, Rhaphidophoridae) from the Aegean Islands of Andros, Paros and Kinaros (Greece). Zoosystema, 40 (20), 469–479.
https://doi.org/10.5252/zoosystema2018v40a20
Di Russo, C., Rampini, M., Latella, L. & Cobolli, M. (2014) Measurements of the diet in two species of Troglophilus Krauss, 1879 cave crickets from Italian subterranean habitats (Orthoptera, Rhaphidophoridae). Subterranean Biology, 13, 45–54.
https://doi.org/10.3897/subtbiol.13.6719
Feng, X.L., Huang, S.H. & Luo, C.Q. (2019) A new species of the subgenus Tachycines (Gymnaeta) (Orthoptera: Rhaphidophoridae) from karst caves of southern Guizhou, China. Zootaxa, 4674 (4), 491–495.
https://doi.org/10.11646/zootaxa.4674.4.8
Feng, Z.G., Wynne, J.J. & Zhang, F. (2020) Cave-dwelling pseudoscorpions of China with descriptions of four new hypogean species of Parobisium (Pseudoscorpiones, Neobisiidae) from Guizhou Province. Subterranean Biology, 34, 61–98.
https://doi.org/10.3897/subtbiol.34.49586
Gao, Z.Z., Chen, H.M. & Zhang, F. (2017) Description of two new cave-dwelling Bisetocreagris species (Pseudoscorpiones: Neobisiidae) from China. Turkish Journal of Zoology, 41, 615–623.
https://doi.org/10.3906/zoo-1602-39
Gorochov, A.V. (1994) News of systematics and faunistics of Vietnam insects Part 4. Proceedings of the Zoological Institute of the Russian Academy of Sciences, 257, 37–50.
Gorochov, A.V. (1998) Data on fauna and taxonomy of Stenopelmatoidea (Orthoptera) from Indochina and some other territories. I. Entomological Review, 78 (1), 26–53.
Gorochov, A.V. (2010a) New species of the families Anostostomatidae and Rhaphidophoridae (Orthoptera: Stenopelmatoidea) from China. Far Eastern Entomologist, 206, 1–16.
Gorochov, A.V. (2010b) New data on the Chinese representatives of the genus Diestrammena (Orthoptera: Rhaphidophoridae: Aemodogryllinae). Far Eastern Entomologist, 212, 12–15.
Gorochov, A.V. & Storozhenko, S.Yu. (1992) On the fanua of the subfamily Aemodogryllinae (Orthoptera, Rhaphidophoridae) in Vietnam. Proceedings of the Zoological Institute of the Russian Academy of Science, 245, 17–34.
Gorochov, A.V., Rampini, M. & Di Russo, C. (2006) New species of the genus Diestrammena (Orthoptera: Rhaphidophoridae: Aemodogryllinae) from caves of China. Russian Entomological Journal, 15, 355–360.
Jiao, Z.J., Niu, C.Y., Liu, X.W., Lei, C.L. & Bi, W.X. (2008) Descriptions of Chinese species of the subgenus Diestrammena (Gymnaeta) Adelung (Orthoptera: Rhaphidophoridae). Zootaxa, 1917, 55–60.
https://doi.org/10.11646/zootaxa.1917.1.4
Karny, H.H. (1934) Zur Kenntnis der ostasiatischen Rhaphidophorinen (Orth. Salt. Gryllacrididae). Konowia, Zeitschrift für Systematische Insektenkunde, 13 (1–3), 214–230.
Karny, H.H. (1937) Orthoptera Fam. Gryllacrididae, Subfamiliae Omnes. Genera Insectorum, 206, 1–317.
Ketmaier, V., Di Russo, C., Rampini, M., Bernhardt, N., Tiedemann, R. & Cobolli, M. (2013) Molecular divergence and evolutionary relationships among Aemodogryllinae from Southern China, Laos and Thailand (Orthoptera, Rhaphidophoridae). Subterranean Biology, 10, 25–35.
https://doi.org/10.3897/subtbiol.10.4154
Liu, W.X. & Wynne, J.J. (2019) Cave millipede diversity with the description of six new species from Guangxi, China. Subterranean Biology, 30, 57–94.
https://doi.org/10.3897/subtbiol.30.35559
Liu, X.W. & Zhang, W.N. (2001) Orthoptera: Tettigonioidea, Rhaphidophoroidea and Gryllacridoidea. In: Wu, H. & Pan, C.W. (Eds.), Insects of Tianmushan National Nature Reserve. Science Press, Beijing, pp. 90–102.
Monro, A.K., Bystriakova, N., Fu, L., Wen, F. &Wei, Y. (2018) Discovery of a diverse cave flora in China. PLoS ONE, 13 (2), e0190801.
https://doi.org/10.1371/journal.pone.0190801
Qin, Y.Y., Liu, X.W. & Li, K. (2019) Review of the subgenus Tachycines (Gymnaeta) Adelung, 1902 (Orthoptera, Rhaphidophoridae, Aemodogryllinae, Aemodogryllini). Zootaxa, 4560 (2), 273–310.
https://doi.org/10.11646/zootaxa.4560.2.3
Qin, Y.Y., Wang, H.Q., Liu, X.W. & Li, K. (2018) Divided the genus Tachycines Adelung (Orthoptera: Rhaphidophoridae: Aemodogryllinae: Aemodogryllini) from China. Zootaxa, 4374 (4), 451–475.
https://doi.org/10.11646/zootaxa.4374.4.1
Rampini, M., Di Russo, C. & Cobolli, M. (2008) The Aemodogryllinae cave crickets from Guizhou, southern China (Orthoptera: Rhaphidophoridae). Monografie Naturalistiche, 3, 129–141.
Richards, A.M. (1961) Some observations on New Zealand cave-wetas. Tuatara, 9, 80–83.
Richards, A.M. (1968) The cavernicolous status of some species of Macropathinae (Orthoptera: Rhaphidophoridae). Journal of the Australian Entomological Society, 7, 87–89.
https://doi.org/10.1111/j.1440-6055.1968.tb00710.x
Shu, S.S., Jiang, W.S., Whitten, T., Yang, J.X. & Chen, X.Y. (2013) Drought and china's cave species. Science, 340 (6130), 272.
https://doi.org/10.1126/science.340.6130.272-a
Storozhenko, S.Yu. (1990) Review of the subfamily Aemodogryllinae (Orthoptera, Rhaphidophoridae). Entomologicheskoe Obozrenie, 69 (4), 835–849.
Song, Y., Zhao, H.F., Luo, Y.F. & Li, S.Q. (2017) Three new species of Pinelema from caves in Guangxi, China (Araneae, Telemidae). ZooKeys, 692, 83–101.
https://doi.org/10.3897/zookeys.692.11677
Taylan, M.S., Mol, A. & Şirin, D. (2015) Description of a new species of the genus Troglophilus Krauss, 1879 (Orthoptera: Rhaphidophoridae) from northern Anatolia, Turkey. Journal of the Entomological Research Society, 17 (2), 51–57.
Tian, M.Y., Huang, S.B. & Wang, D.M. (2017) Discovery of a most remarkable cave-specialized trechine beetle from southern China (Coleoptera, Carabidae, Trechinae). ZooKeys, 725, 37–47.
https://doi.org/10.3897/zookeys.725.21040
Zhang, F. & Liu, X.W. (2009) A review of the subgenus Diestrammena (Gymnaeta) from China (Orthoptera: Rhaphidophoridae Aemodogryllinae). Zootaxa, 2272 (1), 21–36.
https://doi.org/10.11646/zootaxa.2272.1.2
Zhang, Y. & Li, S. (2014) A spider species complex revealed high cryptic diversity in south China caves. Molecular Phylogenetics and Evolution, 79, 353–358.
https://doi.org/10.1016/j.ympev.2014.05.017