Wing span: 3.3 cm (males); 3.6 cm (females).
Flight time: Most adults are observed during a brief flight occurring during the first half of July.
Status: Rare breeding resident.
Distinguishing features: Males are unmarked orange beneath, and orange with a dark brown, unbroken border on upper wing surfaces. Females are larger and darker above, have a distinctive band of orange spots on both the upper forewing and hindwing surfaces, and have rusty-brown lower hind wings with lighter central patches. Iowa material appears to be paler than individuals from further south.
Distribution and habitat: This species is restricted to native prairies in the southeastern one-third of the state. It occurs on mesic to xeric sites, including sand prairie and limestone glades.
Natural History: Although the only reported larval host is Eastern Gamma Grass (Tripsacum dactylodes), this species occurs at none of the Iowa stations. Rather, the Byssus Skipper consistently occurs in prairies supporting dense swards of Indian Grass (Sorghastrum nutans). As this grass is very successful on restored prairies, it should not be surprising that the Byssus Skipper has been able to colonize at least one restored prairie in Iowa from a nearby site.
**
Record # | Date | Locale | State | Lat/Lon | Collected By | Count |
---|---|---|---|---|---|---|
346377 | 2023-07-08 | Decatur County, Iowa | Iowa | Location Protected | Jay Gilliam | 1 |
286168 | 2020-07-19 | Louisa County, Iowa | Iowa | Location Protected | IBSN | 9 |
275942 | 2020-07-10 | Clarke County, Iowa | Iowa | Location Protected | Jay Gilliam | 1 |
203132 | 2017-06-24 | Lee County, Iowa | Iowa | Location Protected | Chris Edwards | 1 |
183825 | 2016-06-18 | Lee County, Iowa | Iowa | Location Protected | Chris Edwards | 1 |
118908 | 2014-07-03 | Lee County, Iowa | Iowa | Location Protected | Chris Edwards | 1 |
120399 | 2013-07-16 | Decatur County, Iowa | Iowa | Location Protected | Sibylla Brown | 1 |
136373 | 2013-07-16 | Decatur County, Iowa | Iowa | Location Protected | Sibylla Brown | 1 |
62005 | 2012-07-09 | Linn County, Iowa | Iowa | Location Protected | Frank Olsen | 1 |
118907 | 2012-06-25 | Lee County, Iowa | Iowa | Location Protected | Chris Edwards | 3 |
208394 | 2011-07-10 | Clarke County, Iowa | Iowa | Location Protected | Aaron Brees | 1 |
208395 | 2011-07-10 | Clarke County, Iowa | Iowa | Location Protected | Aaron Brees | 1 |
208396 | 2011-07-10 | Clarke County, Iowa | Iowa | Location Protected | Aaron Brees | 1 |
208397 | 2011-07-10 | Clarke County, Iowa | Iowa | Location Protected | Aaron Brees | 1 |
208398 | 2011-07-10 | Clarke County, Iowa | Iowa | Location Protected | Aaron Brees | 3 |
5526 | 2011-07-08 | Lucas County, Iowa | Iowa | Location Protected | BAMONA | 1 |
107748 | 2011-07-08 | Lucas County, Iowa | Iowa | Location Protected | Shane Patterson | 1 |
118900 | 2011-07-04 | Lee County, Iowa | Iowa | Location Protected | Chris Edwards | 1 |
118906 | 2011-07-04 | Lee County, Iowa | Iowa | Location Protected | Chris Edwards | 11 |
208393 | 2011-07-04 | Polk County, Iowa | Iowa | Location Protected | Aaron Brees | 1 |
118905 | 2010-07-01 | Lee County, Iowa | Iowa | Location Protected | Chris Edwards | 2 |
118929 | 2010-06-26 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 13 |
61996 | 2009-07-31 | Linn County, Iowa | Iowa | Location Protected | Frank Olsen | 1 |
118928 | 2009-07-19 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 19 |
208399 | 2009-07-11 | Decatur County, Iowa | Iowa | Location Protected | Aaron Brees | 3 |
138477 | 2008-08-06 | Clarke County, Iowa | Iowa | Location Protected | Aaron Brees | 1 |
118927 | 2008-07-26 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 9 |
118926 | 2007-07-14 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 4 |
62000 | 2007-07-06 | Linn County, Iowa | Iowa | Location Protected | Frank Olsen | 3 |
118925 | 2007-07-01 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 45 |
118931 | 2007-07-01 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 5 |
118901 | 2007-06-15 | Lee County, Iowa | Iowa | Location Protected | Chris Edwards | 1 |
61992 | 2006-07-22 | Warren County, Iowa | Iowa | Location Protected | Frank Olsen | 1 |
118924 | 2006-07-15 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 4 |
118904 | 2006-06-24 | Lee County, Iowa | Iowa | Location Protected | Chris Edwards | 2 |
118923 | 2005-07-16 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 1 |
144137 | 2005-07-07 | Johnson County, Iowa | Iowa | Location Protected | Mark Brown | 1 |
200607 | 2005-07-07 | Johnson County, Iowa | Iowa | Location Protected | Mark Brown | 1 |
118903 | 2005-07-02 | Lee County, Iowa | Iowa | Location Protected | Chris Edwards | 4 |
61986 | 2004-07-21 | Dallas County, Iowa | Iowa | Location Protected | Keith Summerville | 1 |
118922 | 2004-07-17 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 7 |
118921 | 2004-07-12 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 8 |
61997 | 2004-06-21 | Linn County, Iowa | Iowa | Location Protected | Frank Olsen | 1 |
118902 | 2004-06-19 | Lee County, Iowa | Iowa | Location Protected | Chris Edwards | 1 |
61993 | 2003-08-01 | Warren County, Iowa | Iowa | Location Protected | Harlan Ratcliff | 1 |
118920 | 2003-07-19 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 32 |
118919 | 2003-07-15 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 44 |
118930 | 2003-07-15 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 2 |
118918 | 2003-06-29 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 1 |
118911 | 2002-07-27 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 1 |
61995 | 2002-07-23 | Linn County, Iowa | Iowa | Location Protected | Dennis Schlicht | 1 |
62001 | 2002-07-23 | Linn County, Iowa | Iowa | Location Protected | Frank Olsen | 6 |
271820 | 2002-07-23 | Linn County, Iowa | Iowa | Location Protected | Dennis Schlicht | 6 |
118917 | 2002-07-19 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 8 |
61998 | 2002-07-15 | Linn County, Iowa | Iowa | Location Protected | Frank Olsen | 11 |
122019 | 2002-07-14 | Jasper County, Iowa | Iowa | Location Protected | Stephanie Shepherd | 1 |
118899 | 2002-07-13 | Lee County, Iowa | Iowa | Location Protected | Chris Edwards | 1 |
62007 | 2002-07-12 | Warren County, Iowa | Iowa | Location Protected | Frank Olsen | 20 |
118916 | 2002-07-12 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 10 |
271807 | 2002-07-12 | Linn County, Iowa | Iowa | Location Protected | Dennis Schlicht | 15 |
118915 | 2002-07-07 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 22 |
62002 | 2002-07-05 | Linn County, Iowa | Iowa | Location Protected | Frank Olsen | 7 |
118910 | 2002-07-01 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 1 |
61999 | 2002-06-30 | Linn County, Iowa | Iowa | Location Protected | Frank Olsen | 3 |
271799 | 2002-06-30 | Linn County, Iowa | Iowa | Location Protected | Dennis Schlicht | 4 |
118914 | 2002-06-29 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 19 |
61985 | 2002-06-28 | Appanoose County, Iowa | Iowa | Location Protected | Frank Olsen | 2 |
61980 | 2002-06-27 | Appanoose County, Iowa | Iowa | Location Protected | Dennis Schlicht | 1 |
61984 | 2002-06-27 | Appanoose County, Iowa | Iowa | Location Protected | Frank Olsen | 1 |
118895 | 2001-08-05 | Lee County, Iowa | Iowa | Location Protected | Chris Edwards | 1 |
118898 | 2001-08-05 | Lee County, Iowa | Iowa | Location Protected | Chris Edwards | 1 |
61982 | 2001-07-26 | Appanoose County, Iowa | Iowa | Location Protected | Dennis Schlicht | 2 |
61983 | 2001-07-26 | Appanoose County, Iowa | Iowa | Location Protected | Frank Olsen | 3 |
43223 | 2001-07-23 | Johnson County, Iowa | Iowa | Location Protected | Jim Durbin | 1 |
43224 | 2001-07-23 | Johnson County, Iowa | Iowa | Location Protected | Jim Durbin | 1 |
61994 | 2001-07-21 | Linn County, Iowa | Iowa | Location Protected | Dennis Schlicht | 3 |
118909 | 2001-07-21 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 1 |
118913 | 2001-07-21 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 17 |
118912 | 2001-07-18 | Johnson County, Iowa | Iowa | Location Protected | Chris Edwards | 6 |
61981 | 2001-07-11 | Appanoose County, Iowa | Iowa | Location Protected | Dennis Schlicht | 1 |
62004 | 2000-07-20 | Linn County, Iowa | Iowa | Location Protected | Frank Olsen | 1 |
144499 | 2000-07-20 | Linn County, Iowa | Iowa | Location Protected | Frank Olsen | 1 |
62003 | 2000-07-15 | Linn County, Iowa | Iowa | Location Protected | Frank Olsen | 1 |
144495 | 2000-07-15 | Linn County, Iowa | Iowa | Location Protected | Frank Olsen | 1 |
118897 | 1999-07-11 | Lee County, Iowa | Iowa | Location Protected | Chris Edwards | 1 |
118896 | 1999-07-10 | Lee County, Iowa | Iowa | Location Protected | Chris Edwards | 3 |
107759 | 1992-07-10 | Johnson County, Iowa | Iowa | Location Protected | Dennis Schlicht | 20 |
61978 | 1991-07-10 | Jackson County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
107756 | 1987-07-07 | Clinton County, Iowa | Iowa | Location Protected | Jerry Selby | 1 |
107753 | 1986-07-15 | Clinton County, Iowa | Iowa | Location Protected | Les Ferge | 1 |
61991 | 1986-07-11 | Linn County, Iowa | Iowa | Location Protected | Jeff Nekola | 1 |
107754 | 1986-07-08 | Clinton County, Iowa | Iowa | Location Protected | Dennis Schlicht | 1 |
107755 | 1986-06-23 | Clinton County, Iowa | Iowa | Location Protected | Dennis Schlicht | 1 |
61990 | 1982-07-25 | Madison County, Iowa | Iowa | Location Protected | IBSN | 1 |
61989 | 1982-07-17 | Madison County, Iowa | Iowa | Location Protected | IBSN | 1 |
107750 | 1968-07-13 | Warren County, Iowa | Iowa | Location Protected | Ron Royer | 1 |
107751 | 1968-07-13 | Warren County, Iowa | Iowa | Location Protected | Ron Royer | 4 |
62009 | 1966-07-30 | Scott County, Iowa | Iowa | Location Protected | St. Ambrose Univ. | 1 |
62012 | 1966-07-30 | Scott County, Iowa | Iowa | Location Protected | THR | 1 |
62006 | 1966-07-24 | Linn County, Iowa | Iowa | Location Protected | J E Michael | 1 |
62008 | 1965-06-05 | Scott County, Iowa | Iowa | Location Protected | D Loren | 1 |
107749 | 1964-07-05 | Warren County, Iowa | Iowa | Location Protected | J E Michael | 1 |
61976 | 1962-07-30 | Boone County, Iowa | Iowa | Location Protected | Heitzman | 1 |
62011 | 1962-07-02 | Scott County, Iowa | Iowa | Location Protected | St. Ambrose Univ. | 1 |
62010 | 1961-07-07 | Scott County, Iowa | Iowa | Location Protected | St. Ambrose Univ. | 1 |
61987 | 1961-07-02 | Lee County, Iowa | Iowa | Location Protected | D Loren | 1 |
5518 | 1950-07-01 | Boone County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
5519 | 1950-07-01 | Clarke County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
5520 | 1950-07-01 | Clinton County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
5521 | 1950-07-01 | Crawford County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
5522 | 1950-07-01 | Decatur County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
5523 | 1950-07-01 | Jackson County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
5524 | 1950-07-01 | Johnson County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
5525 | 1950-07-01 | Lee County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
5527 | 1950-07-01 | Madison County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
5528 | 1950-07-01 | Scott County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
5529 | 1950-07-01 | Union County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
5530 | 1950-07-01 | Van Buren County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
5531 | 1950-07-01 | Warren County, Iowa | Iowa | Location Protected | USGS - NPWRC | 1 |
61977 | 1950-07-01 | Boone County, Iowa | Iowa | Location Protected | Shapiro | 1 |
107752 | 1950-07-01 | Crawford County, Iowa | Iowa | Location Protected | Scudder | 1 |