# American Dagger (*Acronicta americana*) The American Dagger is a fuzzy caterpillar that can be found munching on leaves. It has a unique look with long, soft hairs that can tickle your fingers if you touch it! - **Category:** [Insects](https://www.snappit.app/explore/categories/insect) - **Rarity:** Common - **Danger:** 2/5 · Low - **Snaps:** 7 - **Habitat:** Forests - **Also known as:** Dagger Moth Caterpillar ![American Dagger](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Acronicta_americana.jpg&width=800) Photo: Joseph Berger, , Bugwood.org, CC BY 3.0 us · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Acronicta_americana.jpg) ## Appearance The American Dagger caterpillar is bright yellow or greenish-yellow, densely covered in long, soft yellow hairs with distinctive tufts of black bristles along its back. The adult moth has pale gray wings marked with irregular dark lines and a black, dagger-shaped spot near its center. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Arthropoda - **Class:** Insecta - **Order:** Lepidoptera - **Family:** Noctuidae - **Genus:** Acronicta ## Interesting facts - Adult American Dagger moths are nocturnal, meaning they are active flyers only at night. - The caterpillar's "dagger" namesake comes from black hair tufts on its back, not the moth's wing mark! - Their favorite snack as caterpillars includes leaves from oak, maple, elm, and willow trees. - Young caterpillars often feed together, but as they grow, they prefer to be alone. ## Special abilities - **Spiky Defense:** American Dagger caterpillars have irritating black hair tufts that can cause skin rashes, helping them deter predators. - **Nature's Camouflage:** Adult moths have mottled gray wings that perfectly mimic tree bark, helping them hide from sharp-eyed birds. - **Shape-Shifter Power:** The American Dagger undergoes complete metamorphosis, transforming from a hairy caterpillar into a winged moth. ## Measurements & details - **Wingspan:** 40-60 mm - **Size:** 20-25 mm - **Lifespan:** 7-14 days - **Flight Speed:** 15 km/h - **Leg Count:** 6 ## Diet & Feeding Caterpillars munch on tree leaves; adult moths sip nectar or tree sap for energy. - **Age differences:** Caterpillars are voracious leaf-eaters, while adult moths primarily drink nectar or tree sap for energy. - **Primary Foods:** Oak leaves, Maple leaves, Elm leaves, Birch leaves, Willow leaves, Ash leaves - **Foraging Method:** Foraging ## Ecological connections - **Eaten by:** [Blue Jay](https://www.snappit.app/explore/blue-jay) (*Cyanocitta cristata*) — Blue Jays often eat caterpillars. - **Eaten by:** [Black-capped Chickadee](https://www.snappit.app/explore/black-capped-chickadee) (*Poecile atricapillus*) — Chickadees feed caterpillars to their young. - **Depends on:** [White Oak](https://www.snappit.app/explore/white-oak) (*Quercus alba*) — Caterpillars feed on its leaves. - **Depends on:** [Red Maple](https://www.snappit.app/explore/red-maple) (*Acer rubrum*) — Its leaves are a caterpillar food source. ## Traits - [Furry](https://www.snappit.app/explore/traits/furry): Furry describes animals possessing a dense covering of soft hair or fur. - [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. - [Herbivorous](https://www.snappit.app/explore/traits/herbivorous): This trait characterizes organisms whose diet consists entirely or primarily of plant material. - [Pollinator Magnet](https://www.snappit.app/explore/traits/pollinator-magnet): Describes plants that are particularly attractive and beneficial to a wide range of pollinating organisms. - [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. ## Collections - [Insects](https://www.snappit.app/explore/collections/insects) ## Safety **Danger:** 2/5 · Low Don't touch the caterpillar without asking an adult, as its hairs can cause a little itch. ## Frequently Asked Questions ### How to identify American Dagger? Compare resting wing shape, forewing markings, antennae and body build. Small brown moths can hinge on fine details a phone photo can't always catch. Moth Identifier: upload a photo and compare the visible details. ### What is American Dagger's wingspan? 40-60 mm ### How big is American Dagger? 20-25 mm ### How long does American Dagger live? 7-14 days ### How fast can American Dagger fly? 15 km/h ### What does American Dagger eat? Caterpillars munch on tree leaves; adult moths sip nectar or tree sap for energy. ### Where is American Dagger usually found? Forests ### How does American Dagger hunt? Foraging ## Where to spot - [Buford Mountain Conservation Area](https://www.snappit.app/guides/places/buford-mountain-conservation-area) — Missouri, US · Nature Reserve - [Rolling Hills Zoo](https://www.snappit.app/guides/places/rolling-hills-zoo) — Kansas, US · Zoo - [Beverly Historic District](https://www.snappit.app/guides/places/beverly-historic-district) — West Virginia, US · Historic District - [Ellicott's Mills Historic District](https://www.snappit.app/guides/places/ellicotts-mills-historic-district) — Maryland, US · Historic District - [ME's Zoo](https://www.snappit.app/guides/places/mes-zoo) — Indiana, US · Zoo - [Millington](https://www.snappit.app/guides/places/millington) — Connecticut, US · Neighborhood [View all places to see American Dagger](https://www.snappit.app/guides/where-to-see/american-dagger) ## 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: [American Dagger: Facts & Places to See — Snappit](https://www.snappit.app/explore/american-dagger)