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Rustic shoulder-knot

Rustic shoulder-knot

Apamea sordens

A species of Apamea

This moth has a wingspan of 3.5 - 4 cm . The forewings are brown with mostly indistinct markings except for the narrow black mark at the base of the wing which gives the species its common name. The hindwings are greyish brown, darker towards the margins, with prominent dark venation.

General Info About Rustic shoulder-knot
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Attributes of Rustic shoulder-knot
Colors
Brown
Black
Habitat
open area; grassland
Adult Food Sources
Flower nectar, plant sap, honeydew
Larva Food Source
Grasses, cereals, wheat, barley, rye
Biting/stinging
Not reported
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
The Rustic shoulder-knot 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
Mouthparts Type
Siphoning mouthparts
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Species Status of Rustic shoulder-knot
It is distributed throughout Europe, east across the Palearctic to Central Asia and to China and Japan. It also occurs in North America.
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Distribution Area of Rustic shoulder-knot
Europe, the Palearctic to Central Asia, China, Japan, North America
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Life Cycle of Rustic shoulder-knot
Egg The egg stage begins with the female rustic shoulder-knot laying eggs, often on plant material. The eggs are small, oval, and may vary in color. They serve as a protective casing for the developing embryo. Over time, the eggs change color and the embryo inside grows, preparing for the larval stage.
Larva Upon hatching, the larva, commonly referred to as a caterpillar, emerges. It is elongated with a soft exoskeleton and several pairs of prolegs. The caterpillar's primary function is to consume food, leading to rapid growth. This stage involves multiple molts, where the caterpillar increases in size and may change in coloration.
Pupal The caterpillar encases itself in a pupa or chrysalis. During this stationary phase, the insect undergoes a profound transformation. The body is reorganized, developing wings and adult structures. The pupa's appearance varies, providing camouflage that offers protection from predators during this vulnerable time.
Adult Emerging from the pupa, the adult rustic shoulder-knot’s development is marked by the presence of fully developed wings and functional reproductive organs. Its body is completely formed and hardened, and the adult is mobile, focusing on reproduction. This stage is characterized by distinct coloration patterns and the search for mates.
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Adult Size of Rustic shoulder-knot
3.5 - 4 cm
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Predators of Rustic shoulder-knot Larvae
Birds, rodents, reptiles, invertebrate predators such as beetles and spiders
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Scientific Classification of Rustic shoulder-knot
Tips for Finding Rustic shoulder-knot
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Youth Habitat of Rustic shoulder-knot
Grasslands and Prairies, Agricultural and Cultivated Areas, Forests and Woodlands
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Adult Habitat of Rustic shoulder-knot
Grasslands and Prairies, Agricultural and Cultivated Areas, Forests and Woodlands, Urban and Suburban Areas
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How Can You Attract Rustic shoulder-knot
Sweet substances like fermented fruit, sugary baits, or specialized pheromone lures are commonly used to attract adult rustic shoulder-knot.
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Habitat Preferences of Rustic shoulder-knot Through Different Life Stages
The larvae of rustic shoulder-knot are commonly found in grassy areas, feeding on the leaves and stems of various grasses, suggesting the need to look amongst vegetation in fields and meadows. Adult rustic shoulder-knot are nocturnal and attracted to light, so one might search for them near light sources after dusk. Pupae likely reside in the soil or in leaf litter, thus searching in these areas could prove fruitful. Eggs are typically laid on grass blades, so careful examination of such plants is essential for those searching for this stage.
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When is the Best Time to Observe Rustic shoulder-knot
The best time to find adult rustic shoulder-knot is usually at night when they are most active, as rustic shoulder-knot is part of the Noctuidae family which are commonly known as nocturnal moths.
Are Rustic shoulder-knot harmful?
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Harmful Effects of Rustic shoulder-knot
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Agricultural Pests

Larvae of rustic shoulder-knot chew on roots, stems, and leaves, potentially leading to mild to severe damage. While a small number can stunt growth, a large infestation can devastate crops. This can result in significant yield losses and affect food supply and farmers' livelihoods.

More Effects of Rustic shoulder-knot

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