Elm Leafminer vs Arctic Parasitic Wasp

Side-by-side species comparison

Attribute Elm Leafminer Arctic Parasitic Wasp
Scientific Name Fenusa ulmi Hyposoter horticola
Order Hymenoptera Hymenoptera
Family Tenthredinidae Ichneumonidae
Size 2.5-4 mm (adult) 6-10 mm
Habitat Woodlands Tundra & Arctic
Diet Herbivores Herbivores
Regions Europe, North America Scandinavia, Finland, northern Russia, subarctic regions of Europe
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.

Arctic Parasitic Wasp

A slender parasitic wasp with a black body, orange legs, and long antennae. Females search for caterpillar hosts on tundra vegetation. The larva develops inside the host caterpillar, eventually killing it.

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Did You Know?

This wasp has been extensively studied as a model for understanding host-parasitoid population dynamics in changing Arctic ecosystems.