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Oyster Gall Wasp

Oyster Gall Wasp

Neuroterus anthracinus

A species of Neuroterus

Neuroterus anthracinus is a widely distributed gall wasp that forms chemically induced leaf galls on oak trees. N. anthracinus has both sexual and agamic generations and in consequence forms two distinct galls, the oyster gall and April-bud gall.

General Info About Oyster Gall Wasp
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Attributes of Oyster Gall Wasp
Adult Food Sources
Oak sap, nectar
Larva Food Source
Oak tissues
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 Oyster Gall Wasp
Very frequent and widespread
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Distribution Area of Oyster Gall Wasp
Most of Europe, Crimea, Turkey, Iran
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Life Cycle of Oyster Gall Wasp
Egg The egg stage of oyster Gall Wasp involves the deposition of eggs on host plants. The eggs are diminutive and may display camouflage. Development within the egg is subtle, with gradual formation of the insect's primary tissues and organs.
Larva The larval stage of oyster Gall Wasp shows a worm-like appearance. The larvae are focused on feeding and growth, moulting multiple times. They are often distinctly colored for warning or camouflage. This stage sees the most significant growth in size.
Pupal In the pupal stage, oyster Gall Wasp is encased in a pupa and undergoes a significant transformation. The pupa may blend in with the surroundings. Inside, tissue differentiation occurs as the larval form reconstructs into the adult form, often drastically differing in shape and color.
Adult Emerging from the pupa, the adult oyster Gall Wasp’s development is marked by mature wings and reproductive organs. The body is fully formed and hardened, and the adult is mobile, focusing on reproduction and dispersal. Coloration and structure are optimized for these functions.
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Predators of Oyster Gall Wasp Larvae
Birds, rodents, insectivorous mammals, predatory insects
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Predators of Adult Oyster Gall Wasp
Birds, spiders, insectivorous mammals
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Scientific Classification of Oyster Gall Wasp
Class
Bugs
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Bees
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Tips for Finding Oyster Gall Wasp
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Youth Habitat of Oyster Gall Wasp
Forests and Woodlands, Rotting and Decaying Matter, On and Within Other Organisms (Parasitic and Symbiotic Relationships)
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Adult Habitat of Oyster Gall Wasp
Forests and Woodlands, Urban and Suburban Areas, Agricultural and Cultivated Areas
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How Can You Attract Oyster Gall Wasp
Since oyster Gall Wasp is a type of gall wasp, trapping them may involve using certain plant extracts or pheromones that attract them. These substances would be used as bait in traps designed to capture the adults.
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Habitat Preferences of Oyster Gall Wasp Through Different Life Stages
To find the larvae of oyster Gall Wasp, search inside knobby galls on the undersides of oak leaves, where they develop in isolation. The adult oyster Gall Wasp, once emerged, is often found on or near the same host oaks, as they continue their life cycle. Searching for pupae might require peeling back layers of the gall tissue. To spot the flying adults, one could look around the host trees during the spring or fall, depending on the generation.
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When is the Best Time to Observe Oyster Gall Wasp
The best time to find adult oyster Gall Wasp is during their flight season which is typically in the spring and summer when temperatures are above 13°C (55°F). For gall forms, they can be found on host plants throughout the year but are more noticeable when the plant is leafless.
Are Oyster Gall Wasp harmful?
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Harmful Effects of Oyster Gall Wasp
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Agricultural Pests

Oyster Gall Wasp larvae cause galls on oak leaves, often considered a minor aesthetic issue. However, severe infestations can lead to defoliation, weakening the trees and potentially affecting acorn production, which has implications for wildlife and ecosystems dependent on oak species.

More Effects of Oyster Gall Wasp

Common Questions People Also Ask
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