Elm Leafminer vs European Corn Borer Braconid

Side-by-side species comparison

Attribute Elm Leafminer European Corn Borer Braconid
Scientific Name Fenusa ulmi Macrocentrus cingulum
Order Hymenoptera Hymenoptera
Family Tenthredinidae Braconidae
Size 2.5-4 mm (adult) 4-7 mm
Habitat Woodlands Farmland
Diet Herbivores Parasitoids
Regions Europe, North America Europe, North America, Asia
Conservation Not Evaluated Least Concern

Elm Leafminer

A sawfly whose larvae mine between the upper and lower surfaces of elm leaves. Mines appear as blotchy brown patches on foliage.

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Did You Know?

Each larva creates a single blotch mine that can expand to cover half the leaf.

European Corn Borer Braconid

A slender parasitoid wasp introduced to North America to control the European corn borer moth. It lays polyembryonic eggs that multiply inside the host.

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Did You Know?

A single egg can divide into up to 36 identical embryos inside one host caterpillar through polyembryony.