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 ) montiblense Takaoka, 1983 Simulium ( Gomphostilbia ) montiblense Takaoka, 1983 : 71 –73 (Female, male, pupa and larva). Distribution. Philippines ( Palawan ) and Vietnam . Remarks . This species was described from Palawan , the Philippines by Takaoka (1983) , and later recorded from Vietnam by Crosskey and Howard (1997) . No detailed information of this record was available; hence, the material and locality in Vietnam are unknown. If its identification was based only on the pupal stage, there is a possibility that the species recorded as S . ( G .) montiblense is one of three species, i.e., S . ( G .) eshimai sp. nov. , S . ( G .) longlanhense or S . ( G .) parahiyangum because the pupal gills of S . ( G .) montiblense and the three other species are all short, and their arrangements are almost indistinguishable from one another ( Takaoka 1983 ; Takaoka and Sigit 1992 ; Takaoka et al . 2015a ).