# 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! - **Category:** [Insects](https://www.snappit.app/explore/categories/insect) - **Rarity:** Common - **Danger:** 1/5 · Very low - **Snaps:** 1 - **Habitat:** Wetlands ![Waterlily Leaf Beetle](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Galerucella_nymphaeae_1.jpg&width=800) Photo: Andreas Rusch, CC BY-SA 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Galerucella_nymphaeae_1.jpg) ## 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. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Arthropoda - **Class:** Insecta - **Order:** Coleoptera - **Family:** Chrysomelidae - **Genus:** Galerucella ## 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 - **Underwater Breathing:** Waterlily Leaf Beetle can breathe underwater by trapping a bubble of air under its wings, helping it hide from predators. - **Leaf-Chewing Mouthparts:** Waterlily Leaf Beetle has strong mandibles that help them chew through tough waterlily leaves for food and shelter. - **Protective Exoskeleton:** Waterlily Leaf Beetle has a hard, shiny exoskeleton that helps protect its soft body from damage and predators. - **Flight for Dispersion:** 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](https://www.snappit.app/explore/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](https://www.snappit.app/explore/traits/solitary): Solitary animals live alone for most of their lives, only interacting with others for mating or parental care. - [Camouflaged](https://www.snappit.app/explore/traits/camouflaged): Camouflaged describes organisms that possess coloring or patterns that allow them to blend into their environment. - [Colorful](https://www.snappit.app/explore/traits/colorful): Colorful describes organisms or objects displaying a wide range of bright and distinct colors. - [Herbivorous](https://www.snappit.app/explore/traits/herbivorous): This trait characterizes organisms whose diet consists entirely or primarily of plant material. - [Wetland](https://www.snappit.app/explore/traits/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. - [Diurnal](https://www.snappit.app/explore/traits/diurnal): Diurnal animals are primarily active during daylight hours, typically resting or sleeping at night. - [Keystone Species](https://www.snappit.app/explore/traits/keystone-species): Describes a species whose presence and role have a disproportionately large effect on its environment. - [Pollinator](https://www.snappit.app/explore/traits/pollinator): Describes organisms that transfer pollen, enabling the fertilization and reproduction of plants. ## Collections - [Insects](https://www.snappit.app/explore/collections/insects) ## Safety **Danger:** 1/5 · Very low Be gentle if you see one, and don't touch them too much, as they are small and delicate. ## Frequently Asked Questions ### How to identify Waterlily Leaf Beetle? Look for hard wing covers meeting in a line down the back, then compare the antennae, body shape, legs and markings. Metallic colors shift a lot with lighting. Beetle Identifier: upload a photo and compare the visible details. ### What is Waterlily Leaf Beetle's wingspan? 10-15 mm ### How big is Waterlily Leaf Beetle? 5-8 mm ### How long does Waterlily Leaf Beetle live? 30-60 days ### What does Waterlily Leaf Beetle eat? This beetle munches on the leaves of waterlilies and other aquatic plants, both as larvae and adults. ### Where is Waterlily Leaf Beetle usually found? Wetlands ### How does Waterlily Leaf Beetle hunt? Grazing ### How many legs does Waterlily Leaf Beetle have? 6 ## Where to spot - [Kingston Stockade District](https://www.snappit.app/guides/places/kingston-stockade-district) — New York, US · Historic District - [Rhinebeck Village Historic District](https://www.snappit.app/guides/places/rhinebeck-village-historic-district) — New York, US · Historic District ## More Insects - [Common Eastern Bumble Bee](https://www.snappit.app/explore/common-eastern-bumble-bee) (*Bombus impatiens*) - [Spotted Lanternfly](https://www.snappit.app/explore/spotted-lanternfly) (*Lycorma delicatula*) - [Brown-belted Bumble Bee](https://www.snappit.app/explore/brown-belted-bumble-bee) (*Bombus griseocollis*) - [Eastern Carpenter Bee](https://www.snappit.app/explore/eastern-carpenter-bee) (*Xylocopa virginica*) --- Source: [Waterlily Leaf Beetle: Facts & Places to See — Snappit](https://www.snappit.app/explore/waterlily-leaf-beetle)