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Ilybius fenestratus

Ilybius fenestratus

Ilybius fenestratus

A species of Ilybius

Ilybius fenestratus is a species of beetle found in many countries in Europe. It was first described by Johan Christian Fabricius in 1781. The scent gland of this species of beetle is natural source for the anabolic steroid boldenone (Δ-testosterone).

General Info About Ilybius fenestratus
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Attributes of Ilybius fenestratus
Adult Food Sources
Small fish, aquatic insects, invertebrates, tadpoles, snails
Larva Food Source
Aquatic invertebrates, tadpoles, fish eggs, other aquatic insect larvae, small aquatic crustaceans
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 Ilybius fenestratus
Stable population; common
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Distribution Area of Ilybius fenestratus
Europe
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Life Cycle of Ilybius fenestratus
Egg The ilybius fenestratus's eggs are laid in aquatic environments and are typically oval-shaped and small. The color may vary, often being translucent or pale, with embryonic development visible through the egg casing.
Larva After hatching, the larval ilybius fenestratus is aquatic, voracious, and elongated with a hardened exoskeleton. They exhibit marked mandibles for feeding and grow substantially, undergoing several molts before pupation.
Pupal The ilybius fenestratus pupates either in water or nearby land, transforming inside the pupal case. The pupa is usually immobile and shows the developing structures of the adult ilybius fenestratus, such as wings and legs.
Adult Emerging from the pupa, the adult ilybius fenestratus'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 Ilybius fenestratus Larvae
Tadpoles, aquatic insects, fishes
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Predators of Adult Ilybius fenestratus
Birds, fishes, larger insects
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Scientific Classification of Ilybius fenestratus
Tips for Finding Ilybius fenestratus
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Youth Habitat of Ilybius fenestratus
Freshwater Habitats
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Adult Habitat of Ilybius fenestratus
Freshwater Habitats
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How Can You Attract Ilybius fenestratus
Since ilybius fenestratus are predators, they are not attracted to conventional baits. However, mimicking the presence of prey or using lights might attract adult ilybius fenestratus during the night.
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Habitat Preferences of Ilybius fenestratus Through Different Life Stages
The eggs of ilybius fenestratus are laid underwater on vegetation. Larvae can be found in shallow edge waters rich in aquatic plants, where they predate on other small invertebrates. The pupal stage usually occurs in moist soil or decaying plant matter near the water's edge. Adult ilybius fenestratus are typically found swimming in freshwater ponds, slow-moving streams, and occasionally in brackish waters, often diving to evade predators. To observe these stages, search for the eggs on the submerged parts of aquatic plants, inspect the shallow edges for larvae, dig near the shoreline for pupae, and look for adults in open water or just below the surface.
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When is the Best Time to Observe Ilybius fenestratus
The best time to find adult ilybius fenestratus is usually around dusk or at night when they are most active. For larvae, searching during daytime in appropriate aquatic habitats is often productive.
Are Ilybius fenestratus harmful?
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Beneficial Effects of Ilybius fenestratus
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Predators of Pests
Predators of Pests
Stage
Adults, Larvae
Ilybius fenestratus is a skilled hunter both in its larval and adult stages, using its powerful mandibles to catch and consume a range of aquatic prey. It primarily preys to feed itself, sustaining its life and ensuring its continued survival in the aquatic ecosystems it inhabits.
Common Questions People Also Ask
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