The males of the genus Philopotamus Leach are studied and the following new subspecies are described and illustrated from Turkey: Philopotamus achemenus kemer ssp. n., P. achemenus mencilis ssp. n., P. achemenus namrum ssp. n., P. variegatus sapanca ssp. n., P. variegatus kumbet ssp. n., P. variegatus hasanyavuzi ssp. n., and P. tenuis sumela ssp. n. A key for the species and subspecies of the genus Philopotamus is provided.