Euura

Pronunciation

How to pronounce Euura: /ˈjuː.ʊ.rə/

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Summary

Euura is a diverse genus of sawflies within the Tenthredinidae family, with 262 species in the Nearctic region. Many species are host-specific, particularly to willows, and they have unique reproductive behaviors that induce gall formation on these plants.

Habitat

Boreal forest zone, specifically associated with Salix species (willows).

Distribution

North America and the Western Palaearctic region.

Diet

Larvae of Euura feed on Salix species; some larvae form galls on plants, and others feed externally on plant tissues.

Life Cycle

Life cycle includes the formation of galls stimulated by female oviposition; larvae tend to inhabit the gall and feed on the gall tissue before pupating in the soil.

Reproduction

Females inject a stimulant during oviposition that initiates gall formation on host plants, specifically willows (Salix species).

Ecosystem Role

Gall-inducing species play a role in plant interactions and contribute to the biodiversity of their ecosystems by supporting various trophic levels.

Similar Taxa

• Amauronematus
• Decanematus
• Phyllocolpa
• Pikonema
• Pontania
• Pteronidea

Misconceptions

Early researchers sometimes mistook parasitoids emerging from galls as the actual gall-makers and it was not until later that the role of sawflies in gall formation was clarified.

Tags

• sawflies
• gall-inducing
• Nematinae