Simulium (Gomphostilbia) duolongum Takaoka & Davies, 1995

Simulium (Gomphostilbia) duolongum Takaoka & Davies, 1995: 19 –24 (Female, male, pupa and larva).

Distribution. Peninsular Malaysia, Sumatra and Vietnam (Bac Thai).

Remarks. This species was originally described from Peninsular Malaysia (Takaoka and Davies 1995) and recorded from Vietnam based on two pupae and two larvae by Pham (1999). The identity of the species regarded as S. (G.) duolongum in Vietnam should be confirmed based on the adult males and females.