ZOOTAXA ISSN 1175-5326 (print edition) ISSN 1175-5334 (online edition) Accepted by C. Dietrich: 26 Mar. 2024; published: 22 Apr. 2024 263 Zootaxa 5443 (2): 263–272 https://www.mapress.com/zt/ Copyright © 2024 Magnolia Press Article https://doi.org/10.11646/zootaxa.5443.2.8 http://zoobank.org/urn:lsid:zoobank.org:pub:D9473D85-53F5-4C36-A160-CD297C256C21 A new species of the leafhopper genus Satsumanus Ishihara (Hemiptera: Cicadellidae: Deltocephalinae) from China MUHAMMAD ASGHAR HASSAN 1,2 & JICHUN XING 1,* 1 Institute of Entomology, Guizhou University; The Provincial Special Key Laboratory for Development and Utilization of Insect Resources, Guizhou University; Guiyang, 550025 P.R. China 2 � kakojan112@gmail.com; https://orcid.org/0000-0003-2590-5781 * Corresponding author. � xingjichun@126.com; https://orcid.org/0000-0002-3738-7996 Abstract Satsumanus Ishihara is a small leafhopper genus in tribe Opsiini with six described species, and each have a very restricted biogeographical distribution in the Australian, Oriental and Palearctic regions. The species Satsumanus satsumae (Matsumura) is recorded for the first time from Zhejiang Province, and a new species Satsumanus discedens sp. nov. is described and illustrated from Guizhou Province, China. The digital photographs of adult male habitus and male genitalia are provided. An updated checklist, global distribution map and taxonomic identification key to known species are provided. The type specimens of the new species are deposited in the Institute of Entomology, Guizhou University, Guiyang, China (GUGC). Key words: Homoptera, distribution, new taxa, morphology, taxonomy Introduction The cosmopolitan leafhopper tribe Opsiini Emeljanov, 1962 (Cicadellidae: Deltocephalinae) is currently divided into four subtribes, Achaeticina Emeljanov, 1962, Circuliferina Emeljanov, 1962, Eremophlepsiina Dmitriev, 2006 and Opsiina Emeljanov, 1962, with 42 genera and more than 350 valid described species (Zahniser & Dietrich 2013; El-Sonbati et al. 2016, 2017; Du & Dai 2019; Du et al. 2019; Sunil et al. 2020; Cao et al. 2022; Cao & Xing 2022; Rajgopal et al. 2023) and new species are discovered frequently. Opsiini are small to large-sized, stramineous, yellow, green, or brown leafhoppers, which can be distinguished from other groups by the presence of a bifurcated aedeagus with two shafts and paired gonopores. This tribe includes several economic important species which feed on a wide variety of herbaceous and woody dicots and serve as a vector for the transmission of viral and bacterial (phytoplasma and spiroplasma) phytopathogens (Nielson 2002; Zahniser & Dietrich 2013). Among the subtribes, Opsiina has the highest number of genera and species (31 genera, 268 species) followed by Circuliferina (5 genera, 45 species), Achaeticina (4 genera, 32 species), and Eremophlepsiina (2 genera, 5 species) (Zahniser & Dietrich 2013; Cao et al. 2022). In China, Circuliferina and Eremophlepsiina are each represented by a single species. The known diversity of Opsiina in China has been greatly enlarged in recent decades (Li & Wang 2004; Li & Zhang 2005, 2006; Dai et al. 2010; Xing et al. 2010a, b, 2011; Dai et al. 2011; Li et al. 2011; Lu & Zhang 2016; Du & Dai 2019; Du et al. 2019; Cao et al. 2022; Cao & Xing 2022), bringing the total number of 13 genera and 60 species in this subtribe. Opsiina are medium to large-sized, robust leafhoppers with macropterous forewings, the ovipositor not protruding far beyond pygofer apex, male subgenital plates with a lateral row of macrosetae and aedeagal shafts separated near the base (Zahniser & Dietrich 2013; Cao et al. 2022). The genus Satsumanus was established by Ishihara (1953) with Eutettix satsumae Matsumura, 1914 as its type species. It is a relatively small genus of Opsiina with six described species (Knight 2010; Zahniser & Dietrich 2013; Kim & Jung 2020; Rajgopal et al. 2023). In his annotated checklist of leafhoppers of the Pacific region, Knight (2010) listed five species in the genus Satsumanus. Recently, Rajgopal et al. (2023) added a new species from India to this genus and provided a key to known species and global distribution map.