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Double square-spot

Double square-spot

Xestia triangulum

A species of Xestia

The double square-spot is a nocturnal organism with a preference for temperate woodlands, where it cleverly camouflages among the foliage. During its larval stage, it feeds primarily on a variety of herbaceous plants and shrubs, showcasing adaptive dietary habits. As it undergoes metamorphosis to reach its mature phase, the feeding pattern shifts towards nectar and other plant fluids, demonstrating a distinct change in ecological interactions from its juvenile form.

General Info About Double square-spot
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Attributes of Double square-spot
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
Not reported
Borer
Not reported
Pollinator
The Double square-spot 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
Not reported
Predatory
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Siphoning mouthparts
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Species Status of Double square-spot
Common and widespread
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Distribution Area of Double square-spot
Europe except Portugal, the Mediterranean islands, northernmost Fennoscandia
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Predators of Adult Double square-spot
Bats, birds, small mammals, spiders
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Interesting Facts About Double square-spot
The double square-spot has a unique thermoregulatory mechanism, shivering its wings to warm up its flight muscles in cool temperatures.
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Scientific Classification of Double square-spot
Tips for Finding Double square-spot
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Youth Habitat of Double square-spot
Forests and Woodlands, Grasslands and Prairies
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Adult Habitat of Double square-spot
Forests and Woodlands, Grasslands and Prairies
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When is the Best Time to Observe Double square-spot
The suitable time to find adult double square-spot would be at night when they are most active and attracted to light, while caterpillars may be more abundant and visible during the day.
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What is the Best Weather to Observe Double square-spot
Mild weather conditions without extreme temperatures or heavy rainfall are usually most suitable for finding double square-spot, as such conditions are favorable for both flying adults and feeding caterpillars.
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How and Where Can You Find Double square-spot at Different Life Stages
Egg Double square-spot eggs are likely to be laid on host plants. Look for tiny clusters or rows of eggs on the underside of leaves of known host plants in the area.
Larva Double square-spot caterpillars can be found on or near their food plants. Search for them by inspecting the leaves and stems for signs of feeding or look for frass (caterpillar droppings) beneath the plant to indicate their presence above.
Pupal Double square-spot pupae may be attached to plant structures or found in the leaf litter. Search on the ground near host plants or carefully inspect the stems and leaves where the caterpillars were feeding.
Adult Double square-spot adults can be lured with a light trap or by applying a sweet, fermented bait on tree trunks. Check these traps after dark, as double square-spot is most active at night.
Are Double square-spot harmful?
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Harmful Effects of Double square-spot
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Hurt Plant

The double square-spot causes damage to its host plants, which include various docks and sorrels, willow, and birch, primarily through feeding. This insect chews on plant tissues, affecting leaves, stems, flowers, and fruits. The inflicted damage can result in defoliation, stem girdling, flowering inhibition, and destruction of fruits, ultimately impairing plant growth and reproductive success.

More Effects of Double square-spot

Beneficial Effects of Double square-spot
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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
Pollination Behavior Reason
Eat Pollen Or Nectar
Double square-spot is known to partake in pollination activities primarily during its nocturnal forays. While feeding on nectar, it inadvertently collects and transfers pollen. This process is vital for plant reproduction and biodiversity. Fascinatingly, double square-spot is attracted to flowers through their distinct colors and alluring scents, demonstrating nature's intricate interdependencies.
Common Questions People Also Ask
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