# Cottonwood Leaf Beetle (*Chrysomela scripta*) The Cottonwood Leaf Beetle is a small, shiny beetle that loves to munch on cottonwood leaves. They are bright yellow with black spots, making them easy to spot on the trees they eat. - **Category:** [Insects](https://www.snappit.app/explore/categories/insect) - **Rarity:** Common - **Danger:** 1/5 · Very low - **Snaps:** 4 - **Habitat:** Forests ![Cottonwood Leaf Beetle](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Chrysomela_scripta_2.jpg&width=800) Photo: Gerald J. Lenhard, Louisiana State University, Bugwood.org, CC BY 3.0 us · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Chrysomela_scripta_2.jpg) ## Appearance The Cottonwood Leaf Beetle has an oval, somewhat flattened body. It features a shiny, often metallic black head and thorax, with distinctive yellow or orange stripes running down its black wing covers, sometimes dotted with black spots. Its bright coloration makes it visually distinct from many other leaf beetles. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Arthropoda - **Class:** Insecta - **Order:** Coleoptera - **Family:** Chrysomelidae - **Genus:** Aethiopocassis ## Interesting facts - Mom beetles glue tiny bright yellow eggs to the bottom of leaves, like secret treasures! - Sometimes hundreds of these beetles gather together, creating a beetle party! - Too many beetles can make a cottonwood tree look like it has no leaves at all! - Young beetles are slug-like grubs that eat leaves just like their parents! ## Special abilities - **Toxic Taste Shield:** Cottonwood Leaf Beetles can release foul-tasting compounds from their bodies because they absorb plant toxins, helping them deter predators. - **Tree Leaf Chompers:** Cottonwood Leaf Beetles have powerful chewing mouthparts adapted for feasting on tough cottonwood and willow leaves, their main food. - **Winter Napper:** Cottonwood Leaf Beetles can survive freezing temperatures by hibernating as adults in sheltered spots, waiting for spring. ## Measurements & details - **Size:** 5-8 mm - **Lifespan:** 30-90 days - **Leg Count:** 6 ## Diet & Feeding These beetles and their larvae munch exclusively on the leaves of cottonwood and willow trees. - **Age differences:** Larvae and adults both feed on host plant leaves, just in different life stages. - **Primary Foods:** Cottonwood leaves, Willow leaves, Poplar leaves - **Foraging Method:** Grazing ## Ecological connections - **Eats:** [Eastern Cottonwood](https://www.snappit.app/explore/eastern-cottonwood) (*Populus deltoides*) — Beetle larvae and adults feed on its leaves. - **Eats:** [Weeping Willow](https://www.snappit.app/explore/weeping-willow) (*Salix babylonica*) — Also a primary food source for both life stages. - **Eaten by:** [Eastern Bluebird](https://www.snappit.app/explore/eastern-bluebird) (*Sialia sialis*) — Bluebirds prey on various insects, including beetles. - **Eaten by:** Garden Cross Spider (*Araneus diadematus*) — Spiders can capture beetles in their sticky webs. - **Parasitizes:** Tachinid Fly (*Chetogena scripta*) — Lays eggs on larvae, which are then consumed. ## Traits - [Spotted](https://www.snappit.app/explore/traits/spotted): Marked with spots or patches of a different color. - [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. - [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. - [Forest](https://www.snappit.app/explore/traits/forest): Forest habitats are terrestrial environments dominated by dense tree cover, supporting a high diversity of plant and animal life. - [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 It's best to look at beetles from a distance and not touch them. ## Frequently Asked Questions ### How to identify Cottonwood 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. ### How big is Cottonwood Leaf Beetle? 5-8 mm ### How long does Cottonwood Leaf Beetle live? 30-90 days ### What does Cottonwood Leaf Beetle eat? These beetles and their larvae munch exclusively on the leaves of cottonwood and willow trees. ### Where is Cottonwood Leaf Beetle usually found? Forests ### How does Cottonwood Leaf Beetle hunt? Grazing ### How many legs does Cottonwood Leaf Beetle have? 6 ## Where to spot - [Old Town Albuquerque](https://www.snappit.app/guides/places/old-town-albuquerque) — New Mexico, US · Neighborhood - [Rio Grande Botanic Garden](https://www.snappit.app/guides/places/rio-grande-botanic-garden-new-mexico) — New Mexico, US · Zoo - [Albuquerque Aquarium](https://www.snappit.app/guides/places/albuquerque-aquarium) — New Mexico, US · Zoo - [Itha T. Krumme Memorial Arboretum](https://www.snappit.app/guides/places/itha-t-krumme-memorial-arboretum) — Nebraska, US · Botanical Garden - [Jefferson Barracks Military Post](https://www.snappit.app/guides/places/jefferson-barracks-military-post) — Illinois, US · Historic Site - [Rio Grande Botanic Garden](https://www.snappit.app/guides/places/rio-grande-botanic-garden) — New Mexico, US · Zoo [View all places to see Cottonwood Leaf Beetle](https://www.snappit.app/guides/where-to-see/cottonwood-leaf-beetle) ## 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: [Cottonwood Leaf Beetle: Facts & Places to See — Snappit](https://www.snappit.app/explore/cottonwood-leaf-beetle)