Siamoporus deharvengi is a species of aquatic beetle in the family Dytiscidae, the only species in the genus Siamoporus.[ Dytiscidae Species List at Joel Hallan's Biology Catalog. Texas A&M University. Retrieved on 7 May 2012.] It is only known from a cave in the Khon Kaen Province, Thailand, and like other Troglomorphism beetles it has reduced pigment, and lacks eyes and functional wings.[ Siamoporus is a member of Hydroporini and it is not easily separated from some of the other cave-living species in this tribe.][
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