Water Scavenger Beetles may look the part of the villain but these aquatic insects are a beneficial addition to any water ecosystem.
Water Scavenger Beetles are excellent swimmers with streamlined hydrodynamic bodies. Their feet are feathered to help propel them through water. They breathe air and trap it under their wings before diving below the water's surface, using it to respire while underwater. They resemble Predaceous Diving Beetles though Water Scavengers have little clubs at the end of their antennae while Predaceous Diving Beetles do not.
Water Scavenger Beetles are predators and some eat mosquito larvae, reducing the size of summertime mosquito populations naturally. Others are herbivores and scavenge off of aquatic plants. Even their larvae are omnivores, eating small insects, detritus, and other debris in the water. Occasionally adults can be seen on land near lights, which attract them. They are large as adults and can be found in or near any type of water: lakes, ponds, streams, etc..
Scientific Name: Hydrochara spp.
Size (Adult; Length): 14mm to 19mm (0.55in to 0.74in)
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Antennae: Beetles have a pair of antennae on the head used as sensors.
Head: The head is home to the insect's eyes, antennae, and mandibles (jaws).
Thorax: Holds the three pairs of legs as well as vital internal organs.
Elytron: One of two wing cases on a Beetle that protects its wings (plural: elytra).
Wings: Appendages used for flying and kept under the elytra until needed.
Abdomen: Houses organs related to circulation, reproduction, and excretion.
Legs: Beetles have three pairs of legs located at the thorax, numbering six legs in all.