The Predaceous Diving Beetle - A. mediatus is typically 0.3 inches to 0.6 inches (10mm to 16mm) in size and has the following descriptors / identifiers: dark body; swimming; fins; gold zigzag; gold bottom; letter M on head; golden; water.
It has a typical diet of the following: aquatic insects.
Territorial Area Map (Visual Reference Guide)
The map below showcases (in blue) the states and territories of North America where the Predaceous Diving Beetle - A. mediatus may be found (but is not limited to). This sort of data can be useful in seeing concentrations of a particular species over the continent as well as revealing possible migratory patterns over a species' given lifespan. Some species are naturally confined by environment, weather, mating habits, food resources and the like while others see widespread expansion across most, or all, of North America.
