Status: Breeding resident in the far northeastern, occasional stray elsewhere.
Wingspan: 7.2-7.8 mm.
Flight time: Scattered occurrences from mid-June through mid-October.
Distinguishing features: This large species has an orange upper forewing that is marked with black patches, two white patches at the apex, and a brown and white banded margin. The upper hindwing is brown near the body, with a black and white patch on the costal margin, with a yellow-orange outer margin with a single, interior brown band. The lower wing surface mimics tree bark, and is mottled in gray and white.
Distribution and habitat: Resident colonies are extremely rare and known only from a very few large tracts of mature forest in extreme northeastern Iowa. Additional records scattered over the remaining northeastern half of the state likely represent strays.
Natural History: Larvae consume birch and aspen. Adults prefer fermented sap, fruit, and dung piles, and can be baited. They are extremely rapid fliers, quite wary, and are extraordinarily hard to net. Adults are reported to overwinter in other parts of its range.
Record # | Date | Locale | State | Lat/Lon | Collected By | Count |
---|---|---|---|---|---|---|
290352 | 2021-07-18 | Westphal Timber Michigan | Michigan | 46.316074 -87.500596 | Anita Westphal | 1 |
202968 | 2017-07-08 | Yellow River State Forest | Iowa | 43.170603 -91.240395 | Chris Edwards | 1 |
183591 | 2015-07-12 | Yellow River State Forest | Iowa | 43.170603 -91.240395 | Chris Edwards | 1 |
128228 | 2015-07-10 | Zoll's Mountain Hill Prairie | Iowa | 43.44439444 -91.32687778 | Frank Olsen | 1 |
127704 | 2015-06-25 | Black Hawk Point Wildlife Management Area | Iowa | 43.4602778 -91.2980555 | Frank Olsen | 1 |
144938 | 2013-06-15 | Black Hawk Point Wildlife Management Area | Iowa | 43.455555 -91.28 | Kyle E. Johnson | 1 |
116490 | 2011-07-17 | Big Prairie | Iowa | 43.268358 -91.370554 | Chris Edwards | 1 |
116488 | 2010-07-17 | Yellow River State Forest | Iowa | 43.170603 -91.240395 | Chris Edwards | 1 |
58564 | 2010-06-25 | Yellow River State Forest | Iowa | 43.17253 -91.25173 | Frank Olsen | 1 |
116487 | 2009-07-03 | Yellow River State Forest | Iowa | 43.170603 -91.240395 | Chris Edwards | 27 |
116489 | 2009-07-03 | Big Prairie | Iowa | 43.268358 -91.370554 | Chris Edwards | 7 |
116486 | 2006-07-04 | Yellow River State Forest | Iowa | 43.170603 -91.240395 | Chris Edwards | 1 |
116485 | 2004-07-04 | Yellow River State Forest | Iowa | 43.170603 -91.240395 | Chris Edwards | 1 |
116484 | 2003-07-12 | Yellow River State Forest | Iowa | 43.170603 -91.240395 | Chris Edwards | 2 |
116483 | 2002-07-04 | Yellow River State Forest | Iowa | 43.170603 -91.240395 | Chris Edwards | 4 |
107456 | 1989-07-24 | Pocahontas County | Iowa | 42.74456 -94.683864 | Ron Harms | 1 |
58562 | 1983-07-01 | Clear Creek Fen | Iowa | 43.455306 -91.42388 | J. Nehuevaj | 1 |
4371 | 1950-07-01 | Allamakee County | Iowa | 43.243076 -91.443466 | USGS - NPWRC | 1 |
4372 | 1950-07-01 | Dubuque County | Iowa | 42.469467 -90.829399 | USGS - NPWRC | 1 |
4373 | 1950-07-01 | Sidney | Iowa | 40.74004 -95.645798 | USGS - NPWRC | 1 |
4374 | 1950-07-01 | Henry County | Iowa | 41.028358 -91.598396 | USGS - NPWRC | 1 |
4375 | 1950-07-01 | Linn County | Iowa | 42.027289 -91.67275 | USGS - NPWRC | 1 |
4376 | 1950-07-01 | Pocahontas County | Iowa | 42.691803 -94.645035 | USGS - NPWRC | 1 |
4377 | 1950-07-01 | Polk County | Iowa | 41.627842 -93.500343 | USGS - NPWRC | 1 |
4378 | 1950-07-01 | Poweshiek County | Iowa | 41.653011 -92.539604 | USGS - NPWRC | 1 |
4379 | 1950-07-01 | Story County | Iowa | 42.104046 -93.500343 | USGS - NPWRC | 1 |
4380 | 1950-07-01 | Winneshiek County | Iowa | 43.236259 -91.909927 | USGS - NPWRC | 1 |
107455 | 1938-09-25 | Mount Pleasant | Iowa | 40.982369 -91.542799 | 1 |