Common Water Penny

About Common Water Penny

A small aquatic beetle whose larvae are flattened and round like a copper penny, clinging to rocks in fast streams. Adults are terrestrial and short-lived.

How to Identify Common Water Penny

Common Water Penny (Psephenus herricki) belongs to the order Coleoptera, family Psephenidae. Adults typically measure 4-6 mm (adults); 6-10 mm (larvae).

Common Water Penny Habitat

Common Water Penny is found in rivers & streams habitats, particularly across Eastern North America. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.

Common Water Penny Diet and Feeding

Common Water Penny has an omnivorous diet, feeding on both plant and animal matter. This dietary flexibility allows it to exploit a wide range of food sources in its environment.

Where Is Common Water Penny Found?

Common Water Penny can be found in Eastern North America, where it inhabits rivers & streams environments. Its distribution is influenced by climate, food availability, and habitat suitability.

Is Common Water Penny Dangerous?

Common Water Penny is generally harmless to humans. It does not bite or sting and poses no significant health risk. Like most insects, it prefers to avoid human contact and will typically flee rather than confront a perceived threat.

Common Water Penny Role in Nature

Common Water Penny plays a role in its ecosystem as part of the food web, serving as both consumer and prey. Insects like Common Water Penny are a vital food source for birds, bats, and other wildlife, and contribute to the overall health and balance of their environment.

Seasonal Activity