Water Cascade Beetles

Meruidae is a recently described family of aquatic beetles in the suborder Adephaga, with only one genus and species, Meru phyllisae. This beetle species was first found in the early 1980s. At 0.8 mm, it is one of the smallest adephagan beetles in the world. A recent survey of aquatic beetles of Venezuela prove that Meru is most common during the wet season, when larger areas of granitic rock surface are covered with water film, which the...