Black-Headed Ash Sawfly vs Club-horned Sawfly

Side-by-side species comparison

Attribute Black-Headed Ash Sawfly Club-horned Sawfly
Scientific Name Tethida barda Abia sericea
Order Hymenoptera Hymenoptera
Family Tenthredinidae Cimbicidae
Size 6-8 mm 10-14 mm
Habitat Forests Hedgerows
Diet Herbivores Herbivores
Regions Eastern North America Europe, British Isles
Conservation Least Concern Least Concern

Black-Headed Ash Sawfly

A small sawfly whose larvae have distinctive black heads and whitish-green bodies. They feed on the underside of ash leaflets, skeletonizing them.

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Did You Know?

This species is often mistaken for moth caterpillars, but like all sawfly larvae, it has more than five pairs of prolegs on its abdomen.

Club-horned Sawfly

A striking metallic green sawfly found across Europe. Adults visit flowers while larvae feed on honeysuckle and scabious. One of the smaller cimbicid sawflies.

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Did You Know?

Adults have distinctive clubbed antennae that distinguish them from other sawflies.