This paper presents the description of one new species of the Platylomia radha group from Cao Bang province, Northern Vietnam. The Platylomia radha species group is proposed within the genus Platylomia Stål, which includes one new species, Platylomia duffelsi sp. nov., from the north Vietnam. | TAP CHI 2014, 36(4): 416-422 NewSINH cicadaHOC Platylomia from Vietnam DOI: DOI: THE GENUS Platylomia Stål, 1870 (Hemiptera: Cicadidae) FROM VIETNAM, WITH DESCRIPTION OF ONE NEW SPECIES AND KEY TO SPECIES Pham Hong Thai1*, Jérôme Constant2 1 Vietnam National Museum of Nature, VAST, *phamthai@ 2 Royal Belgian Institute of Natural Sciences, Belgium ABSTRACT: The Platylomia radha species group is proposed within the genus Platylomia Stål, which includes one new species, Platylomia duffelsi sp. nov., from the north Vietnam. Synonymic lists for the four species of Platylomia from Vietnam are provided. A key to the four Platylomia species: P. bocki (Distant), P. duffelsi sp. nov., P. malickyi Beuk, and P. operculata Distant from Vietnam is provided. Photos of the adult, illustrations of the male genitalia, a distribution map and biological data are also given. Keywords: Auchenorrhyncha, Platylomia, cicada, morphology, distribution. INTRODUCTION MATERIALS AND METHODS The genus Platylomia belongs to the subtribe Dundubiina of the tribe Cicadini in the subfamily Cicadinae [10]. Beuk (1998) [2] proposed the Platylomia radha species group with six species: P. rahda, P. bocki, P. malickyi, P. bivocalis, P. ficulnea, P. pendleburyi and providing a key to the species. Three males of a new Platylomia duffelsi species were collected from the Phia Oac-Phia Den Nature Reserve, Nguyen Binh district, Cao Bang Province, in Northern Vietnam. The type specimens of this new species are deposited in the Vietnam National Museum of Nature, Hanoi, Vietnam. The P. radha group is characterized by the abdomen times as long as head and thorax together. Sternite VII with very shallow to rather deep posteromedial emargination. Operculum rather variable in length and shape, reaching from anterior margin of fifth to just beyond posterior margin of seventh abdominal segment. Uncus lobes short and gradually narrowing .
