About Giant Black Water Beetle
The largest water beetle in North America, with a shiny black oval body. Larvae are voracious predators while adults are mainly plant feeders.
Did You Know?
It carries a bubble of air beneath its body like a silvery film, which it replenishes at the surface.
How to Identify Giant Black Water Beetle
Giant Black Water Beetle (Hydrophilus triangularis) belongs to the order Coleoptera, family Hydrophilidae. Adults typically measure 34-40 mm.
Giant Black Water Beetle Habitat
Giant Black Water Beetle is found in ponds & lakes habitats, particularly across North America. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.
Giant Black Water Beetle Diet and Feeding
Giant Black Water Beetle is a predatory species that actively hunts and feeds on other insects and small invertebrates. As a predator, it helps control populations of pest species and maintains ecological balance.
Where Is Giant Black Water Beetle Found?
Giant Black Water Beetle can be found in North America, where it inhabits ponds & lakes environments. Its distribution is influenced by climate, food availability, and habitat suitability.
Distribution Map
Where Giant Black Water Beetle can be found
Is Giant Black Water Beetle Dangerous?
Giant Black Water Beetle 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.
Giant Black Water Beetle Role in Nature
Giant Black Water Beetle serves as a natural predator, helping to control populations of other insects. Predatory insects are valuable in both natural ecosystems and agriculture, where they reduce the numbers of pest species without the need for chemical pesticides.
Seasonal Activity
Frequently Asked Questions About Giant Black Water Beetle
What does Giant Black Water Beetle look like?
The Giant Black Water Beetle typically measures 34-40 mm.
Where is Giant Black Water Beetle found?
The Giant Black Water Beetle is found in North America and typically inhabits ponds & lakes environments.
What does Giant Black Water Beetle eat?
The Giant Black Water Beetle is a predator that hunts and feeds on other insects and small invertebrates.
Is Giant Black Water Beetle dangerous to humans?
The Giant Black Water Beetle is generally harmless to humans. It does not bite or sting and poses no significant health risk.
What is an interesting fact about Giant Black Water Beetle?
It carries a bubble of air beneath its body like a silvery film, which it replenishes at the surface.
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APA:
InsectDiscover. (2026). Giant Black Water Beetle (Hydrophilus triangularis). Retrieved from https://insectdiscover.com/insect/giant-black-water-beetle
MLA:
"Giant Black Water Beetle." InsectDiscover, https://insectdiscover.com/insect/giant-black-water-beetle.