Green Alder Sawfly vs Sirex Woodwasp

Side-by-side species comparison

Attribute Green Alder Sawfly Sirex Woodwasp
Scientific Name Monsoma pulveratum Sirex noctilio
Order Hymenoptera Hymenoptera
Family Tenthredinidae Siricidae
Size 6-8 mm 15-36 mm
Habitat Rivers & Streams Farmland
Diet Herbivores Fungus Feeders
Regions Europe Europe, Africa, Australasia, South America
Conservation Least Concern Least Concern

Green Alder Sawfly

A pale green sawfly that blends well with alder foliage. Larvae are translucent green and feed on the undersides of alder leaves.

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Did You Know?

This species is one of the few sawflies where the adult body color closely matches its host plant foliage, providing effective camouflage.

Sirex Woodwasp

A large blue-black woodwasp that bores into pine trees to lay eggs. It injects a symbiotic fungus into the wood that feeds its developing larvae.

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Did You Know?

Females carry a special fungus in abdominal glands and inoculate trees during egg-laying.