Abstract
Four species of the genus Paraguelus Günther, 1939 are known from the Philippines (Palawan Island) and Malaysia (Borneo Island), of them P. sabahensis sp. nov., P. philippinensis sp. nov., and P. gorochovi sp. nov. are described and illustrated. A key to species of Paraguelus is provided. Based solely only morphology, the genera Paraguelus, Edentatettix Deng, 2025 and Tondanotettix C. Willemse, 1928 are tentatively transferred from subfamily Metrodorinae to Criotettiginae and genus Hainantettix Deng, 2020 is tentatively transferred from subfamily Cladonotinae to Criotettiginae. The position of these genera in the modern system of the family Tetrigidae is briefly discussed.
References
- Blackith, R.E. (1992) Tetrigidae (Insecta; Orthoptera) of Southeast Asia: Annotated catalogue with partial translated keys and bibliography. JAPAGA Press, Wicklow, 248 pp.
- Cadena-Castañeda, O.J., Quitana-Arias, R.F., Infante, I.C., Silva, D.S.M. & Tavares, G.C. (2025) Studies on pygmy grasshoppers: On the current Metrodorinae sensu lato classification (Orthoptera: Tetrigidae) with emphasis on American and Malagasy taxa. Zootaxa, 5597 (1), 1–265. https://doi.org/10.11646/zootaxa.5597.1.1
- Cigliano, M.M., Braun, H., Eades, D.C. & Otte, D. (2025) Orthoptera Species File Online. Version 5.0/5.0. Available from: http://Orthoptera.SpeciesFile.org. (accessed 6 October 2025)
- Devriese, H., Nguyen, E. & Husemann, M. (2023) An identification key to the genera and species of Afrotropical Tetrigini (genera Paratettix, Leptacrydium, Hedotettix, Rectitettix nov. gen., and Alienitettix nov. gen.) with general remarks on the taxonomy of Tetrigini (Orthoptera, Tetrigidae). Zootaxa, 5285 (3), 511–556. https://doi.org/10.11646/zootaxa.5285.3.4
- Günther, K. (1939) Revision der Acrydiinae (Orthoptera), III Sectio Amorphopi (Metrodorae Bol. 1887, auct.). Abhandlungen und Berichte aus den Staatlichen Museen für Tierkunde und Völkerkunde in Dresden, 20 (Sub-Series A: Zoologie, Neue Folge), 1 (1), 16–335.
- ICZN [International Comission on the Zoological Nomenclature] (1999) International Code of the Zoological Nomenclature. 4th Edition. The International Trust for Zoological Nomenclature, London, 306 pp. https://doi.org/10.5962/bhl.title.50608
- Kasalo, N., Brouste, D., Desutter-Grandcolas, L., Hervé, C., Bogić, D. & Skejo, J. (2025) Atlas of New Caledonian Tetrigidae with preliminary suprageneric classification of Batrachideinae. Zoosystema, 47 (18), 327–397. https://doi.org/10.5252/zoosystema2025v47a18
- Kasalo, N., Yong, S., Rebrina, F. & Skejo, J. (2023) Definition of the tribe Metrodorini (Orthoptera: Tetrigidae) with notes on biogeography and evolution of Metrodorinae and Cladonotinae. Acta Entomologica Musei Nationalis Pragae, 63 (1), 187–193. https://doi.org/10.37520/aemnp.2023.010
- Kevan, D.K.M.E. (1966) Some Orthoptera-Caelifera from the Philippine, Bismarck and Solomon Islands, with a few interesting records from New Guinea and the Moluccas. Entomologiske Meddelelser, 34, 375–420.
- Li, Y., Leng, S., He, J., Deng, W.-A. & Guan, D. (2025) Mitochondrial phylogenomics of pygmy grasshoppers (Orthoptera, Tetrigidae, Metrodorinae): descriptions of a new genus, two new species, and new synonyms from China. ZooKeys, 1236, 249–281. https://doi.org/10.3897/zookeys.1236.145914
- Otte, D. (1997) Orthoptera Species File 6. Tetrigoidea and Tridactyloidea (Orthoptera: Caelifera) and Addenda to OSF Vols 1–5. Orthopterists’ Society & Academy of Natural Sciences of Philadelphia, Philadelphia, Pennsylvania, 261 pp.
- Petersen, G. & Gaedike, H. (1970) Katalog der in den Sammlungen des Deutschen Entomologischen Institutes aufbewahrten Typen II. Beiträge zur Entomologie, 20 (1–2), 145–172.
- Steinmann, H. (1970) Check-list of the Tetricidae (Orthoptera) of the Oriental faunal region. Acta Zoologica Academiae Scientiarum Hungaricae, 16, 215–240.
- Storozhenko, S.Yu. (2022) The genus Hyboella Hancock, 1915 (Orthoptera: Tetrigidae: Metrodorinae) in Indonesia. Zootaxa, 5195 (2), 179–186. https://doi.org/10.11646/zootaxa.5195.2.7
- Storozhenko, S.Yu. (2023) A new tribe of the pygmy grasshoppers subfamily Cladonotinae (Orthoptera: Tetrigidae). Far Eastern Entomologist, 468, 16–18. https://doi.org/10.25221/fee.468.2
- Storozhenko, S.Yu. (2025) Review of the genus Tondanotettix C. Willemse, 1928 (Orthoptera: Tetrigidae). Far Eastern Entomologist, 516, 7–14. https://doi.org/10.25221/fee.516.2
- Sudebi, M., Kasalo, N. & Skejo, J. (2025) Definition of the pygmy grasshopper subfamily Criotettiginae (Orthoptera: Tetrigidae) with a preliminary cataloque of genera. Zoologischer Anzeiger - A Journal of Comparative Zoology, 318, 133–151. https://doi.org/10.1016/j.jcz.2025.08.003
- Tan, M.K., Salvador, J.A.G., Bahoy, D.C.M., Sabang, A.M.M., Grumo, K.C., Gono, A.A., Rivera, R.R., Daguplo, J., Mondejar, E.P., Nuñeza, O.M., Patano, R.R., Jr., Baroga-Barbecho, J.B. & Yap, S.A. (2025) 110 years after Bruner (1915): An updated checklist of Orthoptera of the Philippines. Zootaxa, 5643 (1), 1–65. https://doi.org/10.11646/zootaxa.5643.1.1
- Tumbrinck, J. (2014) Taxonomic revision of the Cladonotinae (Orthoptera: Tetrigidae) from the islands of South-East Asia and from Australia, with general remarks to the classification and morphology of the Tetrigidae and descriptions of new genera and species from New Guinea and New Caledonia. In: Telnov, D. (Ed.), Biodiversity, Biogeography and Nature Conservation in Wallacea and New Guinea. Vol. II. The Entomological Society of Latvia, Riga, pp. 345–396, pls. 64–91.
- Yin, X.-C., Shi, J. & Yin, Z. (1996) Synonymic Catalogue of Grasshoppers and their Allies of the World (Orthoptera: Caelifera). China Forestry Publishing House, Beijing, 1266 pp.
- Zhang, R., Zhao, C.-L., Wu, F.-P. & Deng, W.-A. (2020) Molecular data provide new insights into the phylogeny of Cladonotinae (Orthoptera: Tetrigoidea) from China with the description of a new genus and species. Zootaxa, 4809 (3), 547–559. https://doi.org/10.11646/zootaxa.4809.3.8
