description Harvester Butterfly Overview
The Harvester, Feniseca tarquinius, is a small butterfly of eastern and central North America whose larvae feed on other insects rather than plants. Its caterpillars prey on woolly aphids, especially those living on alder, willow, and related trees, while adults consume liquids such as nectar or tree sap. This unusual larval diet distinguishes the species from most North American butterflies.
help Harvester Butterfly FAQ
What is unusual about the Harvester butterfly’s caterpillar?
The Harvester, Feniseca tarquinius, has larvae that prey on woolly aphids instead of feeding directly on plants. This makes it North America’s notable carnivorous butterfly larva.
What do Harvester caterpillars eat?
They mainly eat woolly aphids living on alder, willow, and related trees. The caterpillar’s food source is therefore an insect colony rather than leaves.
Where is the Harvester butterfly found?
The Harvester occurs in eastern and central North America. Adults are associated with trees and damp habitats where woolly aphids are available.
What do adult Harvester butterflies feed on?
Adults consume liquids such as nectar, tree sap, and other available fluids. Their caterpillars have a very different diet because they hunt woolly aphids.
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