Yellow-faced Horntail vs Flower Longhorn

Side-by-side species comparison

Attribute Yellow-faced Horntail Flower Longhorn
Scientific Name Sirex nitobei Pachyta quadrimaculata
Order Hymenoptera Coleoptera
Family Siricidae Cerambycidae
Size 15–30 mm 11-20mm
Habitat Forests Forests
Diet Wood Feeders Root Feeders
Regions East Asia Europe, Asia
Conservation Not Evaluated Least Concern

Yellow-faced Horntail

A large woodwasp native to East Asia that occasionally appears as an invasive species. Females bore into larch and pine to deposit eggs.

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Did You Know?

It carries the same damaging symbiotic fungus Amylostereum areolatum as its relative Sirex noctilio.

Flower Longhorn

A robust yellow longhorn beetle with four black spots on its elytra. It is a common visitor to umbelliferous flowers in northern forests.

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Did You Know?

Despite being a beetle it is frequently mistaken for a wasp due to its yellow and black patterning.