Waterlily Leaf Beetle

Galerucella nymphaeae

The Waterlily Leaf Beetle is a small, shiny bug that loves to munch on waterlily leaves. They are bright green and can be found floating on ponds and lakes, making them fun to spot!

Habitat: Wetlands

Appearance

The Waterlily Leaf Beetle is a small, oval-shaped insect, typically brownish-yellow to dull olive-green. It has a slightly flattened body and is often found clinging to the surface of waterlily leaves, which it visually resembles. Its dull coloration helps it blend in.

KingdomAnimaliaPhylumArthropodaClassInsectaOrderColeopteraFamilyChrysomelidaeGenusGalerucella

Waterlily Leaf Beetle

Interesting facts

Adults can live for several weeks after emerging, constantly eating waterlily leaves!

Female beetles lay eggs on the underside of waterlily leaves, safe from above-water threats!

Their larvae chew hidden tunnels inside waterlily leaves, munching away unseen!

Waterlily Leaf Beetles have special claws that help them grip slippery waterlily surfaces!

Special abilities

Waterlily Leaf Beetle can breathe underwater by trapping a bubble of air under its wings, helping it hide from predators.

Waterlily Leaf Beetle has strong mandibles that help them chew through tough waterlily leaves for food and shelter.

Waterlily Leaf Beetle has a hard, shiny exoskeleton that helps protect its soft body from damage and predators.

Waterlily Leaf Beetle can fly between ponds and wetlands, helping them find new food sources and mates.

Measurements & details

Wingspan: 10-15 mm
Size: 5-8 mm
Lifespan: 30-60 days
Leg Count: 6

Diet & Feeding

This beetle munches on the leaves of waterlilies and other aquatic plants, both as larvae and adults.

Age differences: Larvae feed inside or on waterlily leaves, while adults feed on the leaf surface.

Primary Foods

waterlily leaves
pondweed
other aquatic plants

Foraging Method

Grazing

Ecological connections

eats

Fragrant Waterlily

Nymphaea odorata

Primary food source for both larval and adult stages.

eaten by

American Bullfrog

Lithobates catesbeianus

Adult beetles can be prey for larger frogs near water.

eaten by

Mallard

Anas platyrhynchos

Ducks may consume larvae or adult beetles on aquatic plants.

Traits

Solitary

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

Camouflaged

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

Colorful

Colorful describes organisms or objects displaying a wide range of bright and distinct colors.

Herbivorous

This trait characterizes organisms whose diet consists entirely or primarily of plant material.

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.