# Mottled Umber (*Erannis defoliaria*) The Mottled Umber is a pretty moth with soft, brown wings that look like tree bark. It loves to rest on trees during the day and comes out at night to fly around. - **Category:** [Insects](https://www.snappit.app/explore/categories/insect) - **Rarity:** Common - **Danger:** 1/5 · Very low - **Habitat:** Forests ![Mottled Umber](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/%28MHNT%29_Erannis_defoliaria_-_Jaskulin_-_Poland_-_male.jpg&width=800) Photo: Didier Descouens, CC BY-SA 4.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:%28MHNT%29_Erannis_defoliaria_-_Jaskulin_-_Poland_-_male.jpg) ## Appearance The Mottled Umber is a moth with males displaying yellowish-brown to grey-brown wings patterned with darker, wavy bands and speckles, providing excellent camouflage. Females are distinctly different, being virtually wingless with small, stubby wing pads, giving them a spider-like appearance as they crawl. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Arthropoda - **Class:** Insecta - **Order:** Lepidoptera - **Family:** Geometridae - **Genus:** Erannis ## Interesting facts - Brrr! This moth is one of the few insects you might spot flying on chilly winter nights. - Imagine! Its caterpillars can strip whole trees bare, eating hundreds of leaves in spring. - Sniff-Sniff! Male Mottled Umbers use their feathery antennae to smell females from far away. - Wow! Moths usually fly, but female Mottled Umbers must crawl to find their mates. ## Special abilities - **Wingless Wanderer:** Mottled Umber females have tiny, vestigial wings because of genetics that helps them crawl and lay eggs without flying. - **Bark Blending:** Mottled Umber has mottled brown and grey wings that helps them disappear against tree bark, hiding from hungry birds and bats. - **Winter Survivor Eggs:** Mottled Umber lays eggs in late autumn because of a special adaptation that helps them survive winter and hatch in spring. ## Measurements & details - **Wingspan:** 35-45 mm - **Size:** 12-18 mm - **Lifespan:** 10-30 days - **Flight Speed:** 8 km/h - **Leg Count:** 6 ## Diet & Feeding Its hungry caterpillars munch on tree leaves, helping recycle nutrients in forests. - **Age differences:** Larvae eat leaves, while adult moths rarely feed or only sip nectar/water. - **Primary Foods:** Oak leaves, Birch leaves, Hawthorn leaves, Hazel leaves, Beech leaves, Rowan leaves - **Foraging Method:** Foraging ## Ecological connections - **Eats:** [Great Tit](https://www.snappit.app/explore/great-tit) (*Parus major*) — larvae are a food source for young birds - **Eaten by:** Pedunculate Oak (*Quercus robur*) — caterpillars defoliate its leaves in spring - **Eaten by:** [Silver Birch](https://www.snappit.app/explore/silver-birch) (*Betula pendula*) — a favourite food tree for hungry caterpillars - **Hunts:** Common Pipistrelle (*Pipistrellus pipistrellus*) — adult moths are prey for this small bat ## 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. - [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. - [Nocturnal](https://www.snappit.app/explore/traits/nocturnal): Nocturnal animals are primarily active during the nighttime hours, typically resting or sleeping during the day. - [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 Moths are harmless, but it's best to watch them from a distance. ## Frequently Asked Questions ### How to identify Mottled Umber? 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 Mottled Umber's wingspan? 35-45 mm ### How big is Mottled Umber? 12-18 mm ### How long does Mottled Umber live? 10-30 days ### How fast can Mottled Umber fly? 8 km/h ### What does Mottled Umber eat? Its hungry caterpillars munch on tree leaves, helping recycle nutrients in forests. ### Where is Mottled Umber usually found? Forests ### How does Mottled Umber hunt? Foraging ## 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: [Mottled Umber: Facts & Places to See — Snappit](https://www.snappit.app/explore/mottled-umber)