# Juvenal's Duskywing (*Erynnis juvenalis*) Juvenal's Duskywing is a small butterfly with dark brown wings and white spots. They love to flutter around in sunny areas and are often found resting on leaves or flowers. - **Category:** [Insects](https://www.snappit.app/explore/categories/insect) - **Rarity:** Common - **Danger:** 1/5 · Very low - **Snaps:** 27 - **Habitat:** Open fields and woodlands ![Juvenal's Duskywing](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Juvenal's_Duskywing%252C_dorsal.jpg&width=800) Photo: D. Gordon E. Robertson, CC BY-SA 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Juvenal's_Duskywing%252C_dorsal.jpg) ## Appearance The Juvenal's Duskywing is a medium-sized butterfly with dark, mottled brown wings, often appearing blackish. Its forewings typically have a few small, translucent white spots near the tip, and its hindwings have distinct, often dusty-purple underwings. The wing fringes are subtly checkered. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Arthropoda - **Class:** Insecta - **Order:** Lepidoptera - **Family:** Hesperiidae - **Genus:** Erynnis ## Interesting facts - Adult Juvenal's Duskywings love to sip nectar from early spring wildflowers. - Males have a secret scent patch on their wings to attract females! - Their dark colors help them absorb sunlight, warming them up on cool spring days. - This butterfly spends winter as a caterpillar, snuggled in an oak leaf cocoon! ## Special abilities - **Oak Leaf Illusionist:** Juvenal's Duskywing caterpillars can roll themselves inside oak leaves for shelter and camouflage, protecting them from hungry birds. - **Speedy Skipper Flight:** Juvenal's Duskywing has a fast, erratic flight pattern that helps them dodge predators and quickly move between nectar sources. - **Spring Awakener:** Juvenal's Duskywing emerges early in spring, allowing them to find fresh oak leaves for their caterpillars before other insects. ## Measurements & details - **Wingspan:** 35-50 mm - **Size:** 15-20 mm - **Lifespan:** 14-28 days - **Leg Count:** 6 ## Diet & Feeding As caterpillars, they munch on oak leaves; adults sip sweet flower nectar. - **Age differences:** Larvae eat oak leaves, while adult butterflies feed on flower nectar. - **Primary Foods:** oak leaves (larvae), dandelion nectar, redbud nectar, wild geranium nectar, blueberry nectar - **Foraging Method:** Foraging ## Ecological connections - **Depends on:** [White Oak](https://www.snappit.app/explore/white-oak) (*Quercus alba*) — Larvae feed exclusively on its leaves. - **Eats:** [Common Dandelion](https://www.snappit.app/explore/common-dandelion) (*Taraxacum officinale*) — Adults collect nectar from its early spring blooms. - **Eaten by:** [Eastern Bluebird](https://www.snappit.app/explore/eastern-bluebird) (*Sialia sialis*) — Caterpillars and adults can be prey for these birds. ## Traits - [Spotted](https://www.snappit.app/explore/traits/spotted): Marked with spots or patches of a different color. - [Grassland](https://www.snappit.app/explore/traits/grassland): Grassland habitats are terrestrial biomes dominated by grasses and herbaceous plants, supporting a variety of grazing animals. - [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. - [Speedster](https://www.snappit.app/explore/traits/speedster): This trait identifies organisms that exhibit exceptional swiftness in movement for hunting, escape, or travel. - [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 Always watch butterflies from a distance; they are delicate and should not be touched. ## Frequently Asked Questions ### How to identify Juvenal's Duskywing? Compare the wing outline, spots, bands, eyespots and wing edges. The underside can look completely different from the top. Check for tails, the antennae and where the markings sit instead of relying on color alone. Butterfly Identifier: upload a photo and compare the visible details. ### What is Juvenal's Duskywing's wingspan? 35-50 mm ### How big is Juvenal's Duskywing? 15-20 mm ### How long does Juvenal's Duskywing live? 14-28 days ### What does Juvenal's Duskywing eat? As caterpillars, they munch on oak leaves; adults sip sweet flower nectar. ### Where is Juvenal's Duskywing usually found? Open fields and woodlands ### How does Juvenal's Duskywing hunt? Foraging ### How many legs does Juvenal's Duskywing have? 6 ## Where to spot - [Charlestown Historic District](https://www.snappit.app/guides/places/charlestown-historic-district) — Maryland, US · Historic District - [Dayville Historic District](https://www.snappit.app/guides/places/dayville-historic-district) — Connecticut, US · Historic District - [Elk Neck State Forest](https://www.snappit.app/guides/places/elk-neck-state-forest) — Maryland, US · Forest - [McDade Park](https://www.snappit.app/guides/places/mcdade-park) — Pennsylvania, US · Botanical Garden - [Shimek State Forest](https://www.snappit.app/guides/places/shimek-state-forest) — Iowa, US · Forest - [Bethlehem Green Historic District](https://www.snappit.app/guides/places/bethlehem-green-historic-district) — Connecticut, US · Historic District [View all places to see Juvenal's Duskywing](https://www.snappit.app/guides/where-to-see/juvenals-duskywing) ## 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: [Juvenal's Duskywing: Facts & Places to See — Snappit](https://www.snappit.app/explore/juvenals-duskywing)