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Large maple spanworm

Large maple spanworm

Prochoerodes lineola

A species of Prochoerodes

The large maple spanworm (Prochoerodes lineola) is a large moth that is not considered to be a very picky eater. They can feed on the leaves of anything from apple trees to walnut trees. They are nocturnal but attracted to light, so you may see them bashing their head against your porch light.

General Info About Large maple spanworm
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Attributes of Large maple spanworm
Colors
Brown
Habitat
mixedwood; deciduous forest; woodland
Adult Food Sources
Flower nectar, honeydew, tree sap, rotting fruit juices, pollen
Larva Food Source
Aspen leaves, willow leaves, birch leaves, poplar leaves, oak leaves
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
The Large maple spanworm is non-toxic and generally doesn't pose a risk to human health. No need for excessive worry.
Predatory
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Siphoning mouthparts
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Species Status of Large maple spanworm
It is found from Nova Scotia to Florida, west to Texas and north to Alberta.
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Distribution Area of Large maple spanworm
Nova Scotia, Florida, Texas, Alberta
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Life Cycle of Large maple spanworm
Egg The eggs of large maple spanworm are small and round, often laid on host plants. These eggs serve as the protective enclosure for the developing embryo. Over time, the eggs change color, signalling the imminent hatching of the larvae.
Larva The large maple spanworm larva, commonly known as a caterpillar, exhibits significant growth through multiple molts, each molt is called an instar. They're specialized for feeding with strong mandibles, and the body grows in size and may change colors for camouflage.
Pupal During this stage, large maple spanworm encases itself in a cocoon or chrysalis. Non-mobile, it undergoes a radical transformation. The body structure is reorganized, and tissues differentiate to form the features of the adult insect.
Adult Emerging from the pupa, the adult large maple spanworm's development is marked by the presence of wings and functional reproductive organs. The body is fully formed and hardened, the adult is mobile, focusing on reproduction.
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Predators of Adult Large maple spanworm
Bats, birds, rodents, spiders
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Interesting Facts About Large maple spanworm
Large maple spanworm caterpillars have the unique ability to mimic twigs as a defense mechanism, with bodies that look, and even feel, like actual sticks.
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Scientific Classification of Large maple spanworm
Tips for Finding Large maple spanworm
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Youth Habitat of Large maple spanworm
Forests and Woodlands, Grasslands and Prairies, Urban and Suburban Areas, Agricultural and Cultivated Areas
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Adult Habitat of Large maple spanworm
Forests and Woodlands, Grasslands and Prairies, Urban and Suburban Areas, Agricultural and Cultivated Areas
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How Can You Attract Large maple spanworm
For many Lepidoptera species, including large maple spanworm, light traps are effective because adult moths are nocturnally active and are attracted to light. Another common method includes using bait consisting of fermenting sweet substances to attract large maple spanworm, as many adult moths feed on nectar.
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What is the Best Weather to Observe Large maple spanworm
Weather conditions that are conducive to finding large maple spanworm generally include warm and humid nights for adults. For caterpillars, mild and dry days are ideal when host plants are in active growth, typically during spring and summer.
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How and Where Can You Find Large maple spanworm at Different Life Stages
Egg Large maple spanworm eggs are often laid on the underside of leaves of the host plant. To find them, carefully inspect the foliage of plant species known to be associated with large maple spanworm.
Larva Large maple spanworm caterpillars can be found on or near host plants. Look for them by examining the stems, leaves, and flowers of the host plant during the day.
Pupal Large maple spanworm pupae may be attached to the host plant or may be found in leaf litter or soil beneath the plant. Search carefully around the base of host plants for pupae during late summer or autumn.
Adult Large maple spanworm adults are typically active at night and are attracted to light. They can be found using light traps or by inspecting flowers they may visit for nectar during dusk or dawn hours.
Are Large maple spanworm harmful?
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Harmful Effects of Large maple spanworm
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Garden and Landscape Pest

Larvae of large maple spanworm can defoliate shade trees and ornamentals, eating leaf tissues. Mild infestations cause minimal damage, but severe cases lead to significant defoliation, weakening plants, possibly affecting human enjoyment of landscapes and plant vitality.

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Forestry Pest

Larvae of large maple spanworm feed on foliage, leading to defoliation. Mild infestations cause minimal harm, but severe outbreaks can lead to significant leaf loss, impairing photosynthesis. This may result in reduced tree growth and in extreme cases, death. Such deforestation can diminish forest resources and biodiversity, impacting industries and oxygen production.

More Effects of Large maple spanworm

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