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 Gergithus (Maculergithus) nonomaculatus Meng & Wang, 2012 Figs 1 , 2 E–F Gergithus nonomaculatus Meng & Wang 2012: 4 [keyed], 5 [described], figs 1–18 [habitus, details, male and female genitalia illustrated]. Gergithus nonomaculatus Chen et al. 2014: 4 [listed from China ]. Diagnosis The species can be recognized by the following combination of characters: (1) frons without yellow spot along dorsal margin; (2) vertex yellow; (3) 3 yellow spots on tegmina along sutural margin; (4) tegmina with 9 yellow spots in total. Identification can be confirmed by the male genitalia characters illustrated in Meng & Wang (2012 : figs 16–18). Distribution Known from China , Hainan , Bawangling Mountain ( Meng & Wang 2012 ) (see map Fig. 1 ).