The black flies (Diptera: Simuliidae) of Vietnam Author Takaoka, Hiroyuki Author Sofian-Azirun, Mohd Author Ya’Cob, Zubaidah Author Chen, Chee Dhang Author Lau, Koon Weng Author Low, Van Lun Author Pham, Xuan Da Author Adler, Peter H. text Zootaxa 2017 4261 1 1 165 journal article 33106 10.5281/zenodo.571608 06d40acc-4fc2-4de6-9aab-96f3776ef44c 1175-5326 571608 C097C43E-D522-46C4-9D64-76D3CD4BAD86 Simulium ( Simulium ) nakhonense Takaoka & Suzuki, 1984 Simulium ( Simulium ) nakhonense Takaoka & Suzuki, 1984 : 33 –37 (Female, male, pupa and larva). Distribution. Thailand , China ( Hainan ) and Vietnam ( Bac Giang , Bac Thai, Ha Tay, Lang Son and Yen Bai ). Remarks . Simulium ( S .) nakhonense was originally described from Thailand ( Takaoka and Suzuki 1984 ). This species was recorded from five provinces in northern Vietnam by Pham (1998 , 1999 ).