Predaceous Diving Beetle

Scientific Name: Dytiscidae family (likely Agabus or Ilybius genus)

Order & Family: Order Coleoptera, Family Dytiscidae

Size: 3 mm to 35 mm (depending on species)

Predaceous Diving Beetle

Natural Habitat

Freshwater environments such as ponds, lakes, marshes, and occasionally swimming pools.

Diet & Feeding

Carnivorous. Adults and larvae (water tigers) eat aquatic insects, tadpoles, and small fish.

Behavior Patterns

Excellent swimmers that carry an air bubble under their wing covers to breathe underwater. They are often attracted to artificial lights at night.

Risks & Benefits

Benefits the ecosystem by controlling mosquito populations; larger species can deliver a painful (though non-toxic) bite to humans if handled.

Identified on: 6/22/2026