Dayhiracia gen. nov., a new planthopper genus of the tribe Parahiraciini from Thailand (Hemiptera: Fulgoromorpha: Issidae)
Abstract
A new genus of Issidae (Hemiptera: Fulgoromorpha) belonging to the tribe Parahiraciini Cheng & Yang, 1991, Dayhiracia gen. nov., is erected to accommodate a new species Dayhiracia circularis gen. et sp. nov. from Nakhon Si Thamarat Province in Thailand. Illustrations of habitus and terminalia of the new species are given as well as a distribution map and a photograph of a live specimen. The Thai fauna of the family Issidae now counts ten species in five genera.
References
Bourgoin T. 2026. FLOW (Fulgoromorpha Lists on The Web): A world knowledge base dedicated to Fulgoromorpha. Ver. 8, updated. Available from https://flow.hemiptera-databases.org/flow/ [accessed 8 Jan. 2026].
Bourgoin T. & Huang J. 1990. Morphologie comparée des genitalia mâles des Trypetimorphini et remarques phylogénétiques (Hemiptera: Fulgoromorpha: Tropiduchidae). Annales de la Société entomologique de France, Nouvelle Série 26 (4): 555–564. https://doi.org/10.1080/21686351.1990.12277614
Bourgoin T. & Wang M.-L. 2020. Parahiraciini (Hemiptera, Fulgoromorpha, Issidae): one new genus, two new species and three new subtribes. ZooKeys 997: 69–94. https://doi.org/10.3897/zookeys.997.52857
Bourgoin T., Wang R.R., Asche M., Hoch H., Soulier-Perkins A., Stroinski A., Yap S. & Szwedo J. 2015. From micropterism to hyperpterism: recognition strategy and standardized homology-driven terminology of the fore wing venation patterns in planthoppers (Hemiptera: Fulgoromorpha). Zoomorphology 134 (1): 63–77. https://doi.org/10.1007/s00435-014-0243-6
Butler A.G. 1875. List of the species of the Homopterous genus Hemisphaerius, with descriptions of new forms in the collection of the British Museum. Annals and Magazine of Natural History. London. (Ser. 4) 16: 92–100. https://doi.org/10.1080/00222937508681133
Constant J. 2004. Révision des Eurybrachidae (I). Le genre Amychodes Karsch, 1895 (Homoptera: Fulgoromorpha: Eurybrachidae). Bulletin de l’Institut royal des Sciences naturelles de Belgique 74: 11–28.
Constant J. 2021. Two new species of the genus Gergithus Stål, 1870 from Thailand and Borneo (Hemiptera: Fulgoromorpha: Issidae). Belgian Journal of Entomology 114: 1–17.
Constant J. 2026. Flavina dayi sp. nov., a new species of Parahiraciini planthopper from Thailand (Hemiptera: Fulgoromorpha: Issidae). Belgian Journal of Entomology 165: 1–17.
Constant J. & Jiaranaisakul K. 2020. A strikingly coloured new species of Hemisphaerius Schaum, 1850 from Thailand (Hemiptera: Fulgoromorpha: Issidae). Belgian Journal of Entomology 98: 1–16.
Constant J. & Pham H.T. 2024. Issid planthoppers from Bach Ma and Phong Dien in Central Vietnam. I. Tribe Parahiraciini (Hemiptera: Fulgoromorpha: Issidae). European Journal of Taxonomy 975: 1–64. https://doi.org/10.5852/ejt.2024.975.2769
Constant J. & Pham H.T. 2025. Issid planthoppers from Bach Ma and Phong Dien in Central Vietnam. (III) Tribe Sarimini (Hemiptera: Fulgoromorpha: Issidae). European Journal of Taxonomy 1025: 1–109. https://doi.org/10.5852/ejt.2025.1025.3101
Constant J., Pham H.T. & Nguyen H.T.T. 2025. Two new Parahiraciini planthoppers from Central Vietnam in the genera Gelastyrella and Pseudochoutagus (Hemiptera, Fulgoromorpha, Issidae). ZooKeys 1257: 1–24. https://doi.org/10.3897/zookeys.1257.155185
Gnezdilov V.M. 2003. Review of the family Issidae (Homoptera, Cicadina) of the European fauna, with notes on the structure of ovipositor in planthoppers. Meetings in Memory of N.A. Cholodkovsky 56 (1): 1–145. [In Russian with English summary.]
Gnezdilov V.M. 2009. Revisionary notes on some tropical Issidae and Nogodinidae (Hemiptera: Fulgoroidea). Acta Entomologica Musei Nationalis Pragae 49 (1): 75–92.
Gnezdilov V.M., Drosopoulos S. & Wilson M.R. 2004. New data on taxonomy and distribution of some Fulgoroidea (Homoptera, Cicadina). Zoosystematica Rossica 12 (2) [2003]: 217–223. https://doi.org/10.31610/zsr/2003.12.2.217
Gnezdilov V.M., Holzinger W.E. & Wilson M.R. 2014. The Western Palaearctic Issidae (Hemiptera, Fulgoroidea): an illustrated checklist and key to genera and subgenera. Proceedings of the Zoological Institute RAS, 318 (Supplement 1): 1–124. Available from https://www.zin.ru/journals/trudyzin/doc/vol_318_s1/TZ_318_1_Supplement_Gnezdilov.pdf [accessed 16 Jun. 2026] [In Russian.]
Gnezdilov V.M., Konstantinov F.V. & Namyatova A.A. 2022. From modern to classic: Classification of the planthopper family Issidae (Hemiptera, Auchenorrhyncha, Fulgoroidea) derived from a total-evidence phylogeny. Systematic Entomology 47 (4): 551–568. https://doi.org/10.1111/syen.12546
iNaturalist 2026. https://www.inaturalist.org/ [accessed 8 Jan. 2026].
O’Brien L.B. & Wilson S.W. 1985. Planthoppers systematics and external morphology. In: Nault L.R. & Rodriguez J.G. (eds) The Leafhoppers and Planthoppers: 61–102. John Wiley & Sons, New York.
Ran H.-F. & Liang A.-P. 2006. Taxonomic study of the issid genus Flavina Stål (Hemiptera, Fulgoroidea, Issidae). Acta Zootaxonomica Sinica 31 (2): 388–391.
Shorthouse D.P. 2010. SimpleMappr, an online tool to produce publication-quality point maps. Available from http://www.simplemappr.net [accessed 24 Dec. 2025].
Vanslembrouck A. & Constant J. 2018. Two new species of Tetricodes Fennah, 1956 from Northern Vietnam (Hemiptera: Fulgoromorpha: Issidae). Belgian Journal of Entomology 77: 1–13.
Walker F. 1862. Characters of undescribed species of Homoptera in the collection of F.P. Pascoe, F.L.S. The Journal of Entomology 1: 303–319.
Copyright (c) 2026 Jérôme Constant
This work is licensed under a Creative Commons Attribution 4.0 International License.
Creative Commons Copyright Notices
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License (CC BY 4.0) that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are NOT PERMITTED to post their submitted work online (e.g., in institutional repositories or on personal websites) prior to publication, as it may lead to nomenclatural issues.
