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Alfalfa Sulphurs

Colias eurytheme
Photo by Nicky Davis 2006

Habitat:  The Alfalfa Sulphur can be found throughout southern and central Alberta from May to October.

Description:  Also known as the Orange Sulphur, the Alfalfa Sulphur looks very similar to other Sulphur butterflies but can be distinguished by three small dots on each of its underwings.  The tops of their wings however are orange.

Size:  35-40 mm

Diet:  The caterpillars feed on legumes and especially alfalfa

Fun Fact:  A female can lay 600 eggs and the larva love to eat alfalfa which can be a big nuisance to farmers


Acorn, John. Butterflies of Alberta. Edmonton: Lone Pine Publishing, 1993. Print

Mitchell, Robert, and Herbert S. Zim. Butterflies and Moths. Racine: Western Publishing Company Inc., 1987. Print

area wildlife + plants

Painted Lady
Vanessa cardui

Orange, brown and white wing pattern.

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