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Copper Underwing

Copper Underwing

Amphipyra pyramidoides

A species of Amphipyra, Also known as Pyramidal green fruitworm, Copper underwing moth

The copper Underwing (Amphipyra pyramidoides) has a name that doesn't mess around, as it is called this due to the distinct copper color on the underside of their wings. As they grow, they are known for feeding on a wide variety of plants with broad leaves. Once they are ready, they roll around in a leaf in order to grow into their pupa stage.

General Info About Copper Underwing
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Attributes of Copper Underwing
Colors
Brown
Black
White
Habitat
forest
Adult Food Sources
Flower nectar, honeydew, aphid secretions, plant sap, fermenting fruit juices
Larva Food Source
Deciduous tree leaves, shrub leaves, oak leaves, elm leaves, maple leaves
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
The Copper Underwing is non-toxic and generally doesn't pose a risk to human health. No need for excessive worry.
Borer
Not reported
Pollinator
The Copper Underwing is often found near the corolla, where its fluffy hairs easily pick up pollen, assisting in the pollination of the plant.
Mouthparts Type
Siphoning mouthparts
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Species Status of Copper Underwing
It is found in the US and southern Canada.
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Life Cycle of Copper Underwing
Egg The egg of the copper Underwing is often laid on host plants, where it remains until hatching. It is relatively small and may be spherical or oval, typically colored to blend with the surroundings for protection.
Larva Upon hatching, the larva of copper Underwing appears worm-like, with a soft exoskeleton. It's a feeding stage, where it grows rapidly, shedding its skin multiple times as it increases in size.
Pupal The copper Underwing transforms into a pupa within a protective cocoon, where drastic changes occur. The pupa is stationary and undergoes significant reorganization to prepare for adult life, showing no external movement.
Adult Emerging from the pupa, the adult copper 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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Adult Size of Copper Underwing
2 - 2.5 cm
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Predators of Copper Underwing Larvae
Birds, mantises, spiders, rodents
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Predators of Adult Copper Underwing
Bats, birds, spiders
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Interesting Facts About Copper Underwing
The larvae of copper Underwing possess the unique ability to mimic twigs as a defense mechanism, blending seamlessly into their surroundings to elude predators.
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Scientific Classification of Copper Underwing
Tips for Finding Copper Underwing
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Youth Habitat of Copper Underwing
Forests and Woodlands, Grasslands and Prairies
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Adult Habitat of Copper Underwing
Forests and Woodlands
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When is the Best Time to Observe Copper Underwing
The best time to find adult copper Underwing is at night as they are nocturnal. For caterpillars, searching during the day is more effective.
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What is the Best Weather to Observe Copper Underwing
Mild, humid nights are ideal for spotting adult copper Underwing, while warm and dry days are suitable for finding larvae.
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How and Where Can You Find Copper Underwing at Different Life Stages
Egg Copper Underwing eggs are typically laid on host plants. To find them, inspect the leaves of potential host plants for small clusters or rows of eggs.
Larva Copper Underwing larvae can be found on or near their host plants. Look for chewed leaves and frass (larval droppings) to locate them during the day.
Pupal Copper Underwing pupae may be in the soil or in leaf litter. Search near the base of host plants, gently moving aside debris to uncover them.
Adult Copper Underwing adults are attracted to light, so setting up a light trap at night can be an effective way to find them. Make sure to check the trap periodically throughout the night.
Are Copper Underwing harmful?
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Harmful Effects of Copper Underwing
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Forestry Pest

The larval stage of copper Underwing feeds on foliage and stems, causing defoliation and shoot damage. In small numbers, they may go unnoticed, but severe infestations can lead to significant tree stress and reduced growth. The widespread defoliation might affect timber production and forest health, potentially impacting associated industries and biodiversity.

More Effects of Copper Underwing

Beneficial Effects of Copper Underwing
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Pollinator
Pollinator
Attract Plant Feature
Smell
Copper Underwing inadvertently participates in pollination while seeking nectar for sustenance. Attracted chiefly by the fragrance of flowers, it inadvertently brushes against the pollen and transfers it as it flits from bloom to bloom.
Common Questions People Also Ask
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