Abstract: During entomological surveys conducted by the present author in the whole of the Balochistan Province during 1996-2001, a single ♀ and a ♂ of Sergentomyia (Sergentomyia) dentata arpaklensis Perfiliev (1933) were collected at Mand-Balochistan, near border with Iran, on 09.1.2001 from a mud house through sticky traps. Its taxonomic characters are re-described and the characters not described by earlier workers are also described and illustrated. Differential diagnosis of this species is also provided. The results are compared with the data available in the existing literature.