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 ( Gomphostilbia ) inthanonense Takaoka & Suzuki, 1984 Simulium ( Gomphostilbia ) inthanonense Takaoka & Suzuki, 1984 : 18 –21 (Female, male, pupa and larva). Distribution. South China , Thailand and Vietnam (Bac Thai and Ha Thai). Remarks. This species was originally described from Thailand by Takaoka and Suzuki (1984) , and later recorded from Vietnam by Pham (1998 , 1999 ). There remains a possibility that the species recorded as S . ( G .) inthanonense is either S . ( G .) phulocense or S . ( G .) unii sp. nov. or another related species, as its identification was based on only two pupae and three larvae. These three species and a few other related species have the same shape of the cocoon with a short anterodorsal projection, as shown in Fig. 19 E.