# Northern Wall Brown (*Lasiommata petropolitana*) The Northern Wall Brown is a beautiful butterfly with orange and brown wings. It loves to bask in the sun and can often be found resting on rocks or warm paths. - **Category:** [Insects](https://www.snappit.app/explore/categories/insect) - **Rarity:** Common - **Danger:** 1/5 · Very low - **Habitat:** Grasslands ![Northern Wall Brown](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Lasiommata_petropolitana_-_female_01_%28HS%29.jpg&width=800) Photo: Harald Süpfle, CC BY-SA 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Lasiommata_petropolitana_-_female_01_%28HS%29.jpg) ## Appearance The Northern Wall Brown has predominantly dark brown wings, with a broad orange band near the outer edge of both forewings and hindwings. Each wing features prominent black eyespots, often ringed with yellow, making it visually distinct from uniformly brown species. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Arthropoda - **Class:** Insecta - **Order:** Lepidoptera - **Family:** Nymphalidae - **Genus:** Pararge ## Interesting facts - It loves sunbathing on rocks or tree trunks, absorbing warmth to power its flight. - Its caterpillars are picky eaters, dining only on specific types of grass! - This butterfly can have two generations in a single summer if the weather is warm enough! - Unlike many butterflies, it often rests with its wings folded, camouflaged like a piece of bark. ## Special abilities - **Spotlight Evasion:** Northern Wall Brown has dark-ringed eyespots that can startle predators, giving it a chance to escape by making it seem like a larger creature is watching. - **Forest Blending:** Northern Wall Brown can perfectly blend into dappled sunlight and shaded forest floors, making it incredibly hard for predators to spot them resting. - **Overwinter Survival:** Northern Wall Brown larvae can enter a dormant state during winter, allowing them to survive freezing temperatures until spring arrives. ## Measurements & details - **Wingspan:** 30-45 mm - **Size:** 15-20 mm - **Lifespan:** 7-21 days - **Leg Count:** 6 ## Diet & Feeding Adults sip flower nectar for energy; caterpillars munch on various grasses. - **Age differences:** Yes, adults feed on nectar, while larvae eat grass leaves. - **Primary Foods:** nectar, fescue grass, bentgrass - **Foraging Method:** Foraging ## Ecological connections - **Depends on:** Red Fescue (*Festuca rubra*) — Its larvae feed specifically on the leaves of this grass. - **Pollinates:** Bilberry (*Vaccinium myrtillus*) — Adults visit its flowers, helping to transfer pollen. - **Eaten by:** [Great Tit](https://www.snappit.app/explore/great-tit) (*Parus major*) — Adult butterflies can become a meal for hungry woodland birds. ## 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. - [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. - [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. - [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 don't try to catch them. ## Frequently Asked Questions ### How to identify Northern Wall Brown? 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 Northern Wall Brown's wingspan? 30-45 mm ### How big is Northern Wall Brown? 15-20 mm ### How long does Northern Wall Brown live? 7-21 days ### What does Northern Wall Brown eat? Adults sip flower nectar for energy; caterpillars munch on various grasses. ### Where is Northern Wall Brown usually found? Grasslands ### How does Northern Wall Brown hunt? Foraging ### How many legs does Northern Wall Brown have? 6 ## 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: [Northern Wall Brown: Facts & Places to See — Snappit](https://www.snappit.app/explore/northern-wall-brown)