Olympia Marble, Euchloe olympia

Olympia Marble

Euchloe olympia

Description:
A small, 1.25 inch wingspan, white butterfly with few dark spots on the upper wings, and a very distinctive yellow-green marbling on the under wings.

Habitat:
Open, usually sandy or barren areas where rock cress, its larval host plant, occurs.

Overwintering Strategy:   Chrysalis

Flight:   
One flight from mid-April through the first week in June.

Notes:   
The Olympia Marble is the smallest White in Wisconsin. It is found from mid-April through early June, depending upon the year and where you are in the state. In Waushara County, I regularly look for this species just as the Pasque Flowers are just getting past their prime.

Overwintering Strategy

Two-way migration: Adult migrates from Wisconsin to Central Mexico
Small migration: Adult migrates from Wisconsin to southern US
Immigrant: Adult migrates into Wisconsin from warmer areas and don't fly south in winter
Adult Butterfly: Hibernates overwinter as an adult butterfly
Eggs: Eggs laid on stems, twigs or foot plants overwinter in diapause
Caterpillar: Caterpillars make nests on the base of plants and hibernate until spring
Chrysalis: Caterpillars shed their last skin, form a chrysalis and enter diapause.

For more information, read: Where Do Butterflies Go In Winter?

Further Information:   

 Design A Butterfly Garden
 Take The Butterfly Quiz
 Monarch Life Cycle
 Butterflies and Moths of North America
 WisconsinButterflies.org
 Southern Wisconsin Butterfly Assn (NABA)
 The Butterfly Site

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