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- ›Pill, Water and Toe-winged Beetles
Water Penny Beetles
Psephenidae
Water-penny beetles are a family (the Psephenidae) of 272 species (in 35 genera) of aquatic beetles found on all continents, in both tropical and temperate areas. The young, which live in water, resemble tiny pennies. The larvae feed – usually nocturnally – on algae on rock surfaces. The presence of water penny larvae in a stream can be used as a test for the quality of the water, as they are pollution-sensitive. They cannot live in...
4 branches of this family, most-observed first
Psepheninae
subfamilyPsepheninae
Eubriinae
subfamilyEubriinae
Eubrianacinae
subfamilyEubrianacinae
Psephenoidinae
subfamilyPsephenoidinae
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Psephenidae in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 143858.