Polar Willow Gall Sawfly vs Little Fire Ant

Side-by-side species comparison

Attribute Polar Willow Gall Sawfly Little Fire Ant
Scientific Name Euura arcticum Wasmannia auropunctata
Order Hymenoptera Hymenoptera
Family Tenthredinidae Formicidae
Size 3-5 mm 1-1.5 mm
Habitat Tundra & Arctic Farmland
Diet Gall Makers Omnivores
Regions Arctic Canada, Alaska, Greenland, Arctic Scandinavia, Svalbard Central America, South America, Pacific Islands, Africa
Conservation Least Concern Least Concern

Polar Willow Gall Sawfly

A tiny sawfly that induces galls on Arctic willow stems by injecting chemicals during egg-laying. The larva develops safely inside the swollen plant tissue. Adults are small and dark with clear wings.

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Did You Know?

The gall provides the larva with both food and insulation, maintaining temperatures several degrees warmer than the outside air.

Little Fire Ant

A tiny golden-brown ant with a painful sting far out of proportion to its size. It is one of the most destructive invasive species, blinding pets and wildlife in infested areas.

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Did You Know?

Queens reproduce clonally, producing daughter queens genetically identical to themselves through a unique reproductive system.