Twin Cities Ecological Services Field Office

Midwest Region

 

Twin Cities Field Office

4101 American Boulevard East
Bloomington, MN 55425
Phone: 612-725-3548
Fax: 612-725-3609
TTY: 1-800-877-8339 (Federal Relay)

e-mail: TwinCities@fws.gov

 

 


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Species of Concern

Poweshiek Skipperling (Oarisma poweshiek)

 

Poweshiek skipperling in Minnesota.

Poweshiek skipperling perched on large Indian breadroot (Pediomelum esculentum) at Pipestone County, Minnesota.

Photo by Gerald Selby

Named for the county from which specimens were first collected (Poweshiek county, Iowa), the Poweshiek skipperling is a small butterfly of Minnesota's native prairie. With a wingspan of about an inch and a mostly dark brown coloring, it is an easy butterfly to miss. Although there are distinctive white veins on the underside of the hind wing that can be seen on resting butterflies. The Wisconsin Butterflies website has some beautiful photographs of this skipperling.

 

Recent data (2005-2009) confirm concerns about population trends throughout the range of the Poweshiek skipperling. More recent data were not available for North Dakota, where it was last seen in 2001. At the heart of it range in Iowa, Minnesota, and South Dakota, where it was most abundant and was thought to be most secure, it appears to have disappeared from the majority of sites. Long-term survival of the Poweshiek skipperling may now be dependent on the smaller, more isolated populations at the periphery of its range in Michigan and Wisconsin. Regular surveys have been conducted at many of the sites in those states and most of the populations have remained relatively stable with moderate to low numbers at a time when they have been declining and/or disappearing from the remainder of its range.

 

Poweshiek Skipperling Status Assessment Update - November 2010

 

Poweshiek Skipperling Status Assessment and Conservation Guidelines - 2005

 


 

Twin Cities Field Office Endangered Species Home

 

 
Last updated: March 4, 2013