The Acadian Hairstreak is relatively large for a hairstreak, with a wing span of 2.8 - 3.2 cm. It is light gray underneath with a row of round black spots, then a row of orange on the hindwing. This orange continues over the blue tail spot. You will note obvious tails.

In the Algonquin Highlands, from late June to mid-August you will find Acadian Hairstreak in wetland areas, such as marshes, streamsides and wet meadows, favouring spots with Willow. This is where the female lays her eggs on twigs and these hatch the next spring.

The green larvae has 2 white lines along its length and yellowish dashes on its sides. They feel on the host Willow leaves. Adults drink nectar from various flowers including Milkweed, Butterflyweed and Thistles. Tt is frequently caught by Crab Spiders hiding in flower heads.

ACADIAN HAIRSTREAK
Satyrium acadicum
© Wisconsin Butterflies