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White underwing

White underwing

Catocala relicta

A species of Underwings, Also known as Relict

The wingspan is 7 - 8 cm.

General Info About White underwing
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Attributes of White underwing
Adult Food Sources
Floral nectar from nocturnally blooming plants, sap oozes, fruit juices, honeydew secreted by aphids, moisture from mud or damp soil
Larva Food Source
Populus species (poplars), salix species (willows), quercus species (oaks), ulmus species (elms), betula species (birches)
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
The White underwing is non-toxic and generally doesn't pose a risk to human health. No need for excessive worry.
Borer
Not reported
Pollinator
The White underwing is often found near the corolla, where its fluffy hairs easily pick up pollen, assisting in the pollination of the plant.
Pest-Eating Predatory
Not reported
Phytophagous
The White underwing feeds on plants, usually without causing significant harm. However, it's important to take the situation seriously if their numbers begin to increase significantly.
Predatory
Not reported
Biting animal or pet
Not reported
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Species Status of White underwing
It is found in southern Canada.
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Distribution Area of White underwing
Southern Canada, Newfoundland, Vancouver Island, Missouri, Arizona
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Life Cycle of White underwing
Egg The white underwing begins life as an egg. During this stage, the future larva develops inside a protective shell. Typically laid on plant surfaces, they are small and may vary in color but are often inconspicuous to avoid predation.
Larva As a larva, the white underwing undergoes significant growth. It's a caterpillar with a segmented body and chewing mouthparts, often vibrant or camouflaged. It molts several times, increasing markedly in size with each instar.
Pupal In the pupal stage, the white underwing is immobile and encased within a chrysalis. The exterior may blend with the surroundings, while internally, tissues break down and reorganize, transforming into adult structures.
Adult Emerging from the pupa, the adult white underwing's development is marked by the presence of wings and functional reproductive organs. The body is fully formed and hardened, and the adult is mobile, focusing on reproduction.
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Predators of Adult White underwing
Bats, birds, spiders, rodents, other nocturnal predators
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Interesting Facts About White underwing
The white underwing has unique sound-producing organs (tymbals) which are unusually effective in evading bat predation.
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Scientific Classification of White underwing
Tips for Finding White underwing
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Youth Habitat of White underwing
Forests and Woodlands
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Adult Habitat of White underwing
Forests and Woodlands
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How Can You Attract White underwing
Since white underwing is a moth, light traps or pheromone traps are often used to attract adults during the night. Caterpillars or larvae might be attracted by providing host plant leaves they feed on.
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What is the Best Weather to Observe White underwing
Calm, warm, and humid nights are ideal for adult white underwing moths, as they are more active in such conditions. Overcast days after rainfall can be effective for finding caterpillars since they might be more active due to the moist environment.
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How and Where Can You Find White underwing at Different Life Stages
Egg White underwing eggs are typically laid on the undersides of host plant leaves. To find them, inspect the leaves of known host plants, looking for small, often round or oval eggs.
Larva White underwing caterpillars are found on or near their food plants. Search by examining the leaves of host plants for signs of feeding, such as chewed edges, and look for caterpillars resting on the undersides of leaves.
Pupal White underwing pupae may be found in the soil or leaf litter near the host plants. Gently sift through the top layer of soil or inspect the leaf litter for the camouflaged pupae.
Adult White underwing adult moths are attracted to light, so setting up a light trap after dusk can be effective. Otherwise, sugaring—applying a sweet bait mixture to tree trunks or other surfaces—can lure white underwing for observation or collection.
Are White underwing harmful?
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Beneficial Effects of White underwing
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Explore how insects help as pollinators, pest predators, and biocontrol agents. From seed dispersal to decomposition, they play vital roles in our ecosystem.
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Pollinator
Pollinator
Attract Plant Feature
Color, Shape
White underwing is a nocturnal pollinator drawn to pale colors and certain flower shapes during its foraging. While feeding on nectar, it inadvertently gathers and transfers pollen, aiding in plant reproduction. Its quiet nighttime activity adds a unique dynamic to the ecology of pollination.
Common Questions People Also Ask
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