Wingspan: 2.5-2.8 cm.
Flight time: Univoltine, with adults flying from late June to late July. Rarely individuals have been observed emerging as early as mid June and as late as mid August.
Status: Rare breeding resident.
Distinguishing features: This squarish skipper is dark brown above with a golden forewing edge. The hindwing below is overscaled in white and has distinctive white veins contrasted to a dark anal margin. Females are slightly smaller and less distinctively marked.
Distribution and habitat: Although collections made prior to 1920 document this species as far south as Woodbury and Poweshiek counties, extant populations are today limited to the northern 2 tiers of counties. This species is limited to high quality, wet-mesic to xeric native prairie sites. Populations have proven susceptible to fire management, and may no longer be present on sites where they were seen as recently as a decade ago. The 2004 flight was absent in many of the known preserve sites, making it’s future in Iowa precarious.
Natural History: Larvae were observed feeding on Indian Grass (Sorghastrum nutans) at Cayler Prairie, but also feed on big bluestem (Andropogon gerardi) in the lab. The type location for this species was designated in 1870 as a prairie slope at Grinnell in Poweshiek County. It has not been observed there since. Populations have decreased at Cayler Prairie and other managed prairies in the state in the late 1980's, and may be on the verge of disappearing from both Howard County sites (Crossman and Hayden prairies). These isolated population reductions began following the reintroduction of fire to these sites, and fire has been shown to cause high levels of mortality in Wisconsin populations (Borkin 1995).
Record # | Date | Locale | State | Lat/Lon | Collected By | Count |
---|---|---|---|---|---|---|
308718 | 2008-07-04 | Cerro Gordo County, Iowa | Iowa | Location Protected | Jerry Selby | 1 |
58620 | 2007-06-29 | Cerro Gordo County, Iowa | Iowa | Location Protected | Frank Olsen | 1 |
58621 | 2007-06-19 | Cerro Gordo County, Iowa | Iowa | Location Protected | Frank Olsen | 2 |
58619 | 2005-07-05 | Cerro Gordo County, Iowa | Iowa | Location Protected | Frank Olsen | 1 |
58625 | 2005-06-23 | Cerro Gordo County, Iowa | Iowa | Location Protected | Jerry Selby | 3 |
58612 | 2005-06-22 | Howard County, Iowa | Iowa | Location Protected | Frank Olsen | 1 |
58616 | 2003-07-01 | Osceola County, Iowa | Iowa | Location Protected | Jessica Ski Davis | 1 |
58611 | 2002-07-07 | Howard County, Iowa | Iowa | Location Protected | Frank Olsen | 4 |
202691 | 2000-07-05 | Dickinson County, Iowa | Iowa | Location Protected | Jerry Selby | 62 |
202690 | 2000-07-04 | Dickinson County, Iowa | Iowa | Location Protected | Jerry Selby | 58 |
58626 | 1995-07-02 | Cerro Gordo County, Iowa | Iowa | Location Protected | Kirk Larsen | 2 |
58648 | 1994-07-11 | Osceola County, Iowa | Iowa | Location Protected | Mike Saunders | 1 |
58567 | 1994-07-06 | Emmet County, Iowa | Iowa | Location Protected | Mike Saunders | 15 |
58585 | 1994-07-06 | Osceola County, Iowa | Iowa | Location Protected | Mike Saunders | 4 |
247047 | 1994-07-05 | Dickinson County, Iowa | Iowa | Location Protected | Mike Saunders | 6 |
107474 | 1994-07-05 | Dickinson County, Iowa | Iowa | Location Protected | Mike Saunders | 1 |
247046 | 1994-06-29 | O'Brien County, Iowa | Iowa | Location Protected | Mike Saunders | 150 |
107476 | 1994-06-29 | Dickinson County, Iowa | Iowa | Location Protected | Mike Saunders | 1 |
58594 | 1994-06-26 | Howard County, Iowa | Iowa | Location Protected | Mike Saunders | 25 |
58636 | 1994-06-23 | Dickinson County, Iowa | Iowa | Location Protected | Mike Saunders | 5 |
58615 | 1993-07-25 | Howard County, Iowa | Iowa | Location Protected | Mike Saunders | 1 |
58638 | 1993-07-25 | Kossuth County, Iowa | Iowa | Location Protected | Mike Saunders | 2 |
58617 | 1993-07-21 | Osceola County, Iowa | Iowa | Location Protected | Mike Saunders | 1 |
58618 | 1993-07-21 | Osceola County, Iowa | Iowa | Location Protected | Mike Saunders | 2 |
58647 | 1993-07-21 | Osceola County, Iowa | Iowa | Location Protected | Mike Saunders | 3 |
58632 | 1993-07-19 | Dickinson County, Iowa | Iowa | Location Protected | Mike Saunders | 1 |
107467 | 1993-07-19 | Dickinson County, Iowa | Iowa | Location Protected | Mike Saunders | 3 |
247045 | 1993-07-19 | Dickinson County, Iowa | Iowa | Location Protected | Mike Saunders | 25 |
58566 | 1993-07-18 | Emmet County, Iowa | Iowa | Location Protected | Mike Saunders | 5 |
58628 | 1993-07-18 | Dickinson County, Iowa | Iowa | Location Protected | Mike Saunders | 5 |
58630 | 1993-07-18 | Dickinson County, Iowa | Iowa | Location Protected | Mike Saunders | 1 |
58650 | 1993-07-18 | Dickinson County, Iowa | Iowa | Location Protected | Mike Saunders | 10 |
107477 | 1993-07-18 | Dickinson County, Iowa | Iowa | Location Protected | Mike Saunders | 1 |
107478 | 1993-07-18 | Dickinson County, Iowa | Iowa | Location Protected | Mike Saunders | 2 |
315882 | 1993-07-18 | Winneshiek County, Iowa | Iowa | Location Protected | Dennis Schlicht | 1 |
58574 | 1993-07-13 | Dickinson County, Iowa | Iowa | Location Protected | Mike Saunders | 150 |
107462 | 1993-07-13 | Hancock County, Iowa | Iowa | Location Protected | Mike Saunders | 2 |
58627 | 1993-07-12 | Cerro Gordo County, Iowa | Iowa | Location Protected | Mike Saunders | 1 |
58644 | 1993-07-07 | Dickinson County, Iowa | Iowa | Location Protected | Mike Saunders | 1 |
58600 | 1993-07-03 | Dickinson County, Iowa | Iowa | Location Protected | Mike Saunders | 4 |
58599 | 1993-07-02 | Dickinson County, Iowa | Iowa | Location Protected | Mike Saunders | 10 |
58575 | 1992-07-18 | Dickinson County, Iowa | Iowa | Location Protected | Tim Orwig | 2 |
58579 | 1992-07-18 | Dickinson County, Iowa | Iowa | Location Protected | Tim Orwig | 1 |
58586 | 1992-07-18 | Osceola County, Iowa | Iowa | Location Protected | Tim Orwig | 2 |
58589 | 1992-07-18 | Osceola County, Iowa | Iowa | Location Protected | Tim Orwig | 1 |
58604 | 1992-07-18 | Dickinson County, Iowa | Iowa | Location Protected | Tim Orwig | 1 |
58605 | 1992-07-18 | Dickinson County, Iowa | Iowa | Location Protected | Tim Orwig | 1 |
58640 | 1991-06-24 | Palo Alto County, Iowa | Iowa | Location Protected | Ron Harms | 1 |
58641 | 1991-06-24 | Palo Alto County, Iowa | Iowa | Location Protected | Ron Harms | 1 |
58642 | 1991-06-24 | Palo Alto County, Iowa | Iowa | Location Protected | Ron Harms | 1 |
58580 | 1989-07-08 | Dickinson County, Iowa | Iowa | Location Protected | Tim Orwig | 1 |
58613 | 1989-07-02 | Howard County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
107464 | 1989-07-02 | Howard County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
58601 | 1989-06-25 | Dickinson County, Iowa | Iowa | Location Protected | Ron Harms | 4 |
58602 | 1989-06-25 | Dickinson County, Iowa | Iowa | Location Protected | Ron Harms | 1 |
58603 | 1989-06-25 | Dickinson County, Iowa | Iowa | Location Protected | Ron Harms | 1 |
58576 | 1988-06-30 | Dickinson County, Iowa | Iowa | Location Protected | Tim Orwig | 2 |
58577 | 1988-06-30 | Dickinson County, Iowa | Iowa | Location Protected | Tim Orwig | 1 |
58578 | 1988-06-30 | Dickinson County, Iowa | Iowa | Location Protected | Tim Orwig | 1 |
58587 | 1988-06-27 | Osceola County, Iowa | Iowa | Location Protected | Tim Orwig | 1 |
58588 | 1988-06-27 | Osceola County, Iowa | Iowa | Location Protected | Tim Orwig | 1 |
58590 | 1988-06-27 | Osceola County, Iowa | Iowa | Location Protected | Tim Orwig | 1 |
58634 | 1988-06-27 | O'Brien County, Iowa | Iowa | Location Protected | Tim Orwig | 1 |
58573 | 1988-06-21 | Dickinson County, Iowa | Iowa | Location Protected | Jerry Selby | 1 |
58646 | 1987-07-02 | Osceola County, Iowa | Iowa | Location Protected | John W Fleckenstein | 1 |
58592 | 1987-06-14 | Howard County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
58624 | 1986-07-11 | Cerro Gordo County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
58595 | 1986-07-09 | Dickinson County, Iowa | Iowa | Location Protected | Dennis Schlicht | 1 |
58607 | 1986-07-09 | Hancock County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
58608 | 1986-07-09 | Hancock County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
58643 | 1986-07-06 | Dickinson County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
107468 | 1986-07-06 | Dickinson County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
107473 | 1986-07-06 | Dickinson County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
58623 | 1986-07-04 | Cerro Gordo County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
58591 | 1986-06-26 | Howard County, Iowa | Iowa | Location Protected | Dennis Schlicht | 1 |
58593 | 1986-06-26 | Howard County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
58606 | 1986-06-26 | Howard County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
58565 | 1986-06-21 | Emmet County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
58598 | 1986-06-21 | Dickinson County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
58629 | 1986-06-21 | Dickinson County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
107469 | 1986-06-21 | Dickinson County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
107479 | 1986-06-21 | Dickinson County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
58569 | 1985-07-09 | Dickinson County, Iowa | Iowa | Location Protected | Dennis Schlicht | 1 |
58570 | 1985-07-09 | Dickinson County, Iowa | Iowa | Location Protected | Dennis Schlicht | 1 |
58596 | 1985-07-09 | Dickinson County, Iowa | Iowa | Location Protected | Dennis Schlicht | 1 |
58597 | 1985-07-08 | Dickinson County, Iowa | Iowa | Location Protected | Dennis Schlicht | 1 |
58622 | 1984-08-07 | Cerro Gordo County, Iowa | Iowa | Location Protected | Ron Howe | 1 |
58633 | 1984-07-09 | Calhoun County, Iowa | Iowa | Location Protected | Schenum | 4 |
58645 | 1984-07-09 | Osceola County, Iowa | Iowa | Location Protected | John W Fleckenstein | 1 |
58637 | 1984-07-04 | Kossuth County, Iowa | Iowa | Location Protected | Ron Howe | 1 |
58635 | 1984-07-01 | Calhoun County, Iowa | Iowa | Location Protected | unknown source | 1 |
58572 | 1980-07-11 | Dickinson County, Iowa | Iowa | Location Protected | J C Downey | 1 |
58583 | 1980-07-09 | Emmet County, Iowa | Iowa | Location Protected | J C Downey | 1 |
58571 | 1980-07-06 | Dickinson County, Iowa | Iowa | Location Protected | J C Downey | 1 |
107465 | 1980-07-06 | Dickinson County, Iowa | Iowa | Location Protected | J C Downey | 1 |
58568 | 1980-06-29 | Dickinson County, Iowa | Iowa | Location Protected | Dennis Schlicht | 1 |
58584 | 1980-06-29 | Emmet County, Iowa | Iowa | Location Protected | J C Downey | 1 |
107466 | 1980-06-29 | Dickinson County, Iowa | Iowa | Location Protected | D Hess | 1 |
58609 | 1978-06-29 | Howard County, Iowa | Iowa | Location Protected | Balogh | 1 |
58610 | 1976-07-05 | Howard County, Iowa | Iowa | Location Protected | Conway/Seaborg | 1 |
58581 | 1970-07-14 | Dickinson County, Iowa | Iowa | Location Protected | Wittrock | 1 |
271913 | 1969-12-31 | Palo Alto County, Iowa | Iowa | Location Protected | Ron Harms | 4 |
58614 | 1968-07-13 | Howard County, Iowa | Iowa | Location Protected | J E Michael | 3 |
4381 | 1950-07-01 | Cerro Gordo County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
4382 | 1950-07-01 | Dickinson County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
4383 | 1950-07-01 | Emmet County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
4384 | 1950-07-01 | Hancock County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
4385 | 1950-07-01 | Howard County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
4386 | 1950-07-01 | Kossuth County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
4387 | 1950-07-01 | Page County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
4388 | 1950-07-01 | Palo Alto County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
4389 | 1950-07-01 | Poweshiek County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
4390 | 1950-07-01 | Story County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
4391 | 1950-07-01 | Woodbury County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
58631 | 1950-07-01 | Linn County, Iowa | Iowa | Location Protected | George Berry | 1 |
58649 | 1950-07-01 | Woodbury County, Iowa | Iowa | Location Protected | Lindsey | 1 |
107457 | 1950-07-01 | Poweshiek County, Iowa | Iowa | Location Protected | Hathaway | 1 |
107458 | 1950-07-01 | Poweshiek County, Iowa | Iowa | Location Protected | Lindsey | 1 |
107459 | 1950-07-01 | Poweshiek County, Iowa | Iowa | Location Protected | Lindsey | 1 |
107460 | 1950-07-01 | Poweshiek County, Iowa | Iowa | Location Protected | Osborn | 1 |
107463 | 1950-07-01 | Howard County, Iowa | Iowa | Location Protected | Ron Gatrelle | 1 |
107470 | 1950-07-01 | Dickinson County, Iowa | Iowa | Location Protected | Klots | 1 |
107471 | 1950-07-01 | Dickinson County, Iowa | Iowa | Location Protected | Lindsey | 1 |
107472 | 1950-07-01 | Dickinson County, Iowa | Iowa | Location Protected | Opler | 1 |
58639 | 1930-07-01 | Story County, Iowa | Iowa | Location Protected | Lindsey | 1 |
107475 | 1930-06-26 | Dickinson County, Iowa | Iowa | Location Protected | McAlpine | 1 |
107461 | 1930-06-21 | Poweshiek County, Iowa | Iowa | Location Protected | Parker | 2 |