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Hollow-Spotted Angle

Hollow-Spotted Angle

Digrammia gnophosaria

A species of Digrammia

Digrammia gnophosaria, the hollow-spotted angle, is a species of moth of the family Geometridae. It is found in Illinois, Louisiana, Minnesota, New Jersey, North Carolina, Oklahoma, Texas and Wisconsin. The larvae feed on Salix species, including Salix babylonica.

General Info About Hollow-Spotted Angle
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Attributes of Hollow-Spotted Angle
Adult Food Sources
Flower nectar, honeydew, tree sap, rotting fruit juice, plant exudates
Larva Food Source
Leaves of shrubs, herbaceous plants, deciduous trees, coniferous trees, specific host plants
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
Not reported
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
Not reported
Predatory
Not reported
Biting animal or pet
Not reported
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Species Status of Hollow-Spotted Angle
No protection required
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Distribution Area of Hollow-Spotted Angle
Illinois, Louisiana, Minnesota, New Jersey, North Carolina, Oklahoma, Texas, Wisconsin
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Life Cycle of Hollow-Spotted Angle
Egg The eggs of hollow-Spotted Angle are typically laid in clusters and exhibit a spherical or oval shape. Their size is minimal, and the color usually blends with the environment to provide camouflage from predators.
Larva As larvae, hollow-Spotted Angle are worm-like with a distinct head and segmented bodies. They often have diverse patterns for hiding from predators. Growth involves molting, with significant increases in size after each molt.
Pupal Entering the pupal stage, hollow-Spotted Angle transform inside a cocoon or chrysalis. This stage is a transition phase, with the body undergoing reorganization. The pupa is immobile, and protective coloring is common.
Adult Emerging from the pupa, the adult hollow-Spotted Angle'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 Hollow-Spotted Angle Larvae
Frogs and toads, birds, jumping spiders, mantises
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Predators of Adult Hollow-Spotted Angle
Birds, bats
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Scientific Classification of Hollow-Spotted Angle
Tips for Finding Hollow-Spotted Angle
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Youth Habitat of Hollow-Spotted Angle
Forests and Woodlands, Grasslands and Prairies
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Adult Habitat of Hollow-Spotted Angle
Forests and Woodlands, Grasslands and Prairies, Urban and Suburban Areas
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How Can You Attract Hollow-Spotted Angle
For hollow-Spotted Angle, artificial light traps are effective as they are nocturnal and are attracted to light. Bait traps with sweet fermenting substances like rotten fruit or sugary solutions can also be used to lure them.
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Habitat Preferences of Hollow-Spotted Angle Through Different Life Stages
The eggs of hollow-Spotted Angle are often laid on the underside of host plant leaves, commonly found in deciduous forests or areas with abundant vegetation. Caterpillars, which exhibit a looping gait when they move, are typically discovered on or near their host plants, as they feed on the leaves. Pupae may be found in loose earth or leaf litter, camouflaged within the detritus to avoid predators. Adults are nocturnal and are attracted to light, so they're frequently encountered near outdoor lighting or illuminated windows in habitats similar to where the larvae are found, like wooded areas or gardens. To find these stages, search relevant plant species, examine ground debris, and observe light sources at night.
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When is the Best Time to Observe Hollow-Spotted Angle
The most suitable time to find adult hollow-Spotted Angle is at night when they are most active and attracted to light sources. For caterpillars, the daytime is better when they are feeding on host plants.
Are Hollow-Spotted Angle harmful?
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Harmful Effects of Hollow-Spotted Angle
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Forestry Pest

When present in low numbers, hollow-Spotted Angle larvae feed on the foliage causing mild defoliation, with minimal impact. However, in outbreaks, severe defoliation can occur, leading to stunted growth, reduced timber value, and increased tree mortality. This can have significant economic consequences and may disrupt local ecosystems and human activities reliant on forest resources.

More Effects of Hollow-Spotted Angle

Common Questions People Also Ask
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