Maculergithus, a new subgenus in Gergithus Schumacher, 1915 with two new species from northern Vietnam (Hemiptera: Fulgoromorpha: Issidae) Author Constant, Jérôme 6E6072A1-9415-4C8D-8E60-2504444DB290 Royal Belgian Institute of Natural Sciences, O. D. Phylogeny and Taxonomy, Entomology, Vautier street 29, B- 1000 Brussels, Belgium. & urn: lsid: zoobank. org: author: 6 E 6072 A 1 - 9415 - 4 C 8 D- 8 E 60 - 2504444 DB 290 & Corresponding author: jerome. constant @ naturalsciences. be jerome.constant@naturalsciences.be Author Pham, Hong-Thai E34CB863-7E3B-4E8F-8738-B41C07D9F5F9 Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Hanoi, Vietnam. & Email: phamthai @ vnmn. vast. vn & urn: lsid: zoobank. org: author: E 34 CB 863 - 7 E 3 B- 4 E 8 F- 8738 - B 41 C 07 D 9 F 5 F 9 phamthai@vnmn.vast.vn text European Journal of Taxonomy 2016 2016-05-19 198 1 16 journal article 21959 10.5852/ejt.2016.198 66bc6169-67f1-46ca-ba7d-08326ec09cf3 2118-9773 3838140 Subgenus Maculergithus subgen. nov. urn:lsid:zoobank.org:act: C13CCE8B-1279-4FF8-8464-30553592E4B3 Type species Gergithus (Maculergithus) tamdao subgen. et sp. nov. Diagnosis The new subgenus Maculergithus subgen. nov. in Gergithus is here erected for the species sharing the combination of the following characters: (1) ground colour black-brown; (2) tegmina with numerous yellow spots separated from one another; (3) frons with a broad yellow transverse band above fronto-clypeal suture; (4) mesonotum with yellow spot on each lateral angle; (5) posterior margin of pygofer of male genitalia strongly rounded posterad in lateral view; (6) anal tube elongate, truncate apically and with apicolateral angles projecting posteroventrally. Etymology The name is formed by the combination of “ maculatus ” (adj., Latin) = spotted and “ Gergithus ”, the genus to which pertains the new subgenus. It is masculine in gender. Species included Gergithus (Maculergithus) luteomaculatus subgen. et sp. nov. ( Vietnam , Tam Dao National Park), Gergithus (Maculergithus) multipunctatus Che, Zhang & Wang, 2007 ( China , Hainan Island: Jianfeng Mountain), Gergithus (Maculergithus) nonomaculatus Meng & Wang, 2012 ( China , Hainan Island: Bawangling Mountain), Gergithus (Maculergithus) tamdao subgen. et sp. nov. ( Vietnam , Tam Dao National Park). The subgenus currently contains 4 species, but an undescribed species from Hainan Island (Wuzhishan), illustrated and erroneously referred to as G. multipunctatus in both Chen et al. (2014: 56) and Guo & Chen (2015) , also belongs to the group. Pending additional new groupings (see discussion), all other species are currently retained in the nominal subgenus Gergithus (Gergithus) Stål, 1870 . Distribution Currently known distribution includes Hainan Island ( China ) and Tam Dao massif (North Vietnam ) ( Fig. 1 ). Fig. 1. Distribution map of the species of Gergithus (Maculergithus) subgen. nov. in North Vietnam and Hainan. Fig. 2. Gergithus (Maculergithus) subgen. nov. , schema of maculation of frons and left tegmen. A–B . Gergithus (Maculergithus) luteomaculatus subgen. et sp. nov. C–D . Gergithus (Maculergithus) multipunctatus Che, Zhang & Wang, 2007 . E–F . Gergithus (Maculergithus) nonomaculatus Meng & Wang, 2012 . G–H . Gergithus (Maculergithus) tamdao subgen. et sp. nov. I–J . Gergithus (Maculergithus) sp. (drawings by J. Caudron, RBINS; C–F, I–J based on illustrations of original descriptions). Biology All species seem to live in forested zones of mountainous regions.