ExploreInsects

Megasternum

Megasternum is a special type of beetle that loves to explore! These little bugs have shiny bodies and can often be found near water, where they like to play and hide.

Habitat: Wetlands

Appearance

The Megasternum is a small, oval beetle, typically dark brown to black and very shiny. It has short, club-like antennae hidden beneath its head, differentiating it from similar aquatic beetles.

KingdomAnimaliaPhylumArthropodaClassInsectaOrderColeopteraFamilyHydrophilidaeGenusMegasternum

Megasternum

Interesting facts

A Megasternum's antennae help it 'smell' food in the water!

Some Megasternum larvae are fierce predators, unlike the adult beetles!

Their shiny bodies are super waterproof, keeping them dry even underwater!

They can play dead by pulling in their legs and pretending to be a tiny pebble!

Special abilities

Megasternum can breathe underwater by carrying a silvery air bubble under its shell, which acts like a tiny scuba tank for them.

Megasternum has specialized paddle-like legs that help them efficiently swim through water to find food and escape predators.

Megasternum can fly well, allowing them to travel between different ponds or puddles when their current water source dries up.

Megasternum can break down decaying plant matter, helping to keep aquatic environments clean and recycle nutrients.

Measurements & details

Wingspan: 5-8 mm
Size: 2-4 mm
Lifespan: 60-120 days
Flight Speed: 5-10 km/h
Leg Count: 6

Diet & Feeding

These beetles mostly munch on decaying plants and algae found in water.

Age differences: Larvae are often carnivorous, hunting small aquatic invertebrates, while adults are primarily detritivores.

Primary Foods

decaying plant matter
algae
microorganisms

Foraging Method

Foraging

Ecological connections

eats

Leopard Frog

Rana pipiens

Frogs prey on adult beetles swimming near the surface.

eats

Mallard Duck

Anas platyrhynchos

Ducks forage in shallow water, consuming aquatic insects.

eats

Yellow Perch

Perca flavescens

Fish in ponds are common predators of water beetles.

depends on

Cattail

Typha latifolia

Provides shelter and decaying matter for the beetles.

Traits

Solitary

Solitary animals live alone for most of their lives, only interacting with others for mating or parental care.

Omnivorous

This trait identifies organisms whose diet includes both plant and animal matter.

Camouflaged

Camouflaged describes organisms that possess coloring or patterns that allow them to blend into their environment.

Filter Feeder

Filter feeders obtain nutrients by straining suspended food particles and small organisms from water.

Wetland

This habitat trait identifies species found in wetlands, which are areas of land saturated with water, either permanently or seasonally, including marshes, swamps, and bogs.