# Sylvan Hairstreak (*Satyrium sylvinus*) The Sylvan Hairstreak is a small, colorful butterfly with beautiful blue and orange patterns on its wings. It loves to flutter around in sunny spots, especially near trees and flowers. - **Category:** [Insects](https://www.snappit.app/explore/categories/insect) - **Rarity:** Common - **Danger:** 1/5 · Very low - **Snaps:** 2 - **Habitat:** Forests ![Sylvan Hairstreak](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/HAIRSTREAK%252C_SYLVAN_%28Satyrium_sylvinus%29_%288-7-08%29_blanco_river%252C_co_%281%29_%289424551044%29.jpg&width=800) Photo: ALAN SCHMIERER, CC0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:HAIRSTREAK%252C_SYLVAN_%28Satyrium_sylvinus%29_%288-7-08%29_blanco_river%252C_co_%281%29_%289424551044%29.jpg) ## Appearance The Sylvan Hairstreak has brownish-gray wings on top, with a lighter underside featuring a distinct white line, often edged with orange, running across its hindwings. It also typically sports small, dark eyespots and delicate "tails" near its hindwing margins. This combination helps it stand out from plainer brown butterflies. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Arthropoda - **Class:** Insecta - **Order:** Lepidoptera - **Family:** Lycaenidae - **Genus:** Strymon ## Interesting facts - Instead of just flowers, adults sometimes sip sweet tree sap for a sugary treat! - Look closely! This butterfly often "rubs" its hindwings together, making its fake antennae wiggle. - Sylvan Hairstreak caterpillars love to munch on willow leaves before they transform. - The tiny "tails" on its wings might distract predators, helping the butterfly escape danger! ## Special abilities - **False Head Deception:** Sylvan Hairstreak has fake antennae and an eyespot on its hindwings that helps them trick predators into attacking the wrong end. - **Sylvan Camouflage:** Sylvan Hairstreak has cryptic wing patterns that helps them blend seamlessly into their leafy habitat to hide from hungry birds. - **Agile Aerial Dance:** Sylvan Hairstreak can perform quick, erratic flight maneuvers that helps them evade capture from fast-flying insect predators. ## Measurements & details - **Wingspan:** 25-35 mm - **Size:** 10-15 mm - **Lifespan:** 45-75 days - **Flight Speed:** 10 km/h - **Leg Count:** 6 ## Diet & Feeding Larvae munch leaves, while adults sip sweet nectar and tree sap. - **Age differences:** Larvae feed exclusively on host plant leaves, while adults consume liquid foods like nectar and sap. - **Primary Foods:** Willow leaves, Tree sap, Flower nectar, Honeydew - **Foraging Method:** Foraging ## Ecological connections - **Depends on:** Sandbar Willow (*Salix exigua*) — Larvae feed on its leaves for growth and development. - **Depends on:** [Quaking Aspen](https://www.snappit.app/explore/quaking-aspen) (*Populus tremuloides*) — Sometimes used as a host plant for its caterpillars. - **Eaten by:** [Steller's Jay](https://www.snappit.app/explore/stellers-jay) (*Cyanocitta stelleri*) — Adult butterflies are a food source for insectivorous birds. - **Pollinates:** [Showy Milkweed](https://www.snappit.app/explore/showy-milkweed) (*Asclepias speciosa*) — Adults visit flowers for nectar, aiding plant reproduction. ## 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. - [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. - [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 and be gentle if you want to look closer. ## Frequently Asked Questions ### How to identify Sylvan Hairstreak? 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 Sylvan Hairstreak's wingspan? 25-35 mm ### How big is Sylvan Hairstreak? 10-15 mm ### How long does Sylvan Hairstreak live? 45-75 days ### How fast can Sylvan Hairstreak fly? 10 km/h ### What does Sylvan Hairstreak eat? Larvae munch leaves, while adults sip sweet nectar and tree sap. ### Where is Sylvan Hairstreak usually found? Forests ### How does Sylvan Hairstreak hunt? Foraging ## Where to spot - [Coloma](https://www.snappit.app/guides/places/coloma) — California, US · Neighborhood ## 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: [Sylvan Hairstreak: Facts & Places to See — Snappit](https://www.snappit.app/explore/sylvan-hairstreak)