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Giant Water Bug

Belostomatidae

The Giant Water Bug is a big bug that lives in water! They are great swimmers and use their strong legs to move around.

Habitat: Freshwater ponds and rivers

Appearance

The Giant Water Bug is a large, flattened insect with an oval body, typically brown or grayish-brown. It has powerful, raptorial forelegs for grasping prey and a short, retractable breathing tube at its rear.

KingdomAnimaliaPhylumArthropodaClassInsectaOrderHemipteraFamilyBelostomatidae
Giant Water Bug
piscivorous trait badgeambush_predator trait badgeancient_lineage trait badgecarnivorous trait badge
Giant Water Bug

Category

Insects

Rarity

Common

Danger

2/5 · Low

Snaps

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Interesting facts

If you try to pick one up, you might get a painful bite, earning them the nickname "toe-biter"!

Male Giant Water Bugs are amazing dads; they carry their babies (eggs) on their backs!

They can fly far distances between ponds at night, searching for new hunting grounds.

When threatened, these clever bugs sometimes play dead, lying motionless to fool predators.

Special abilities

Ability

Underwater Snorkel

Giant Water Bug can breathe air while underwater using a short tube, that helps them stay submerged for hunting.

Ability

Predator Grab

Giant Water Bug has strong, pincer-like forelegs that help them ambush and firmly hold onto their prey.

Ability

Egg Backpack

Male Giant Water Bugs often carry their eggs on their back that helps protect them until they hatch.

Measurements & details

Size
30-100 mm
Lifespan
90-365 days
Leg Count
6

Diet & Feeding

An aquatic predator, it lurks to ambush and eat other insects, tadpoles, small fish, and frogs.

Primary Foods

  • Dragonfly nymphs
  • Mosquito larvae
  • Tadpoles
  • Small fish
  • Frogs
  • Snails

Foraging Method

  • Ambush

Ecological connections

hunts

Bullfrog

Rana catesbeiana

Prey on tadpoles and young frogs.

hunts

Mosquitofish

Gambusia affinis

Actively preys on small fish in ponds.

hunts

Green Darner

Anax junius

Ambushes the nymphs of this large dragonfly.

eaten by

Great Blue Heron

Ardea herodias

Hunted by large wading birds like herons.

eaten by

Largemouth Bass

Micropterus salmoides

A food source for predatory fish.

Traits

Also known as

Alligator BugToe-Biter

Safety

Danger

2/5 · Low

Do not touch or pick up. Some insects sting or bite. Ask an adult for help.

Frequently Asked Questions

How big is Giant Water Bug?

30-100 mm

How long does Giant Water Bug live?

90-365 days

What does Giant Water Bug eat?

An aquatic predator, it lurks to ambush and eat other insects, tadpoles, small fish, and frogs.

Where is Giant Water Bug usually found?

Freshwater ponds and rivers

How does Giant Water Bug hunt?

Ambush

How many legs does Giant Water Bug have?

6

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