Attributes of Pyrgus centaureae
Grizzled Skipper
Pyrgus centaureae (Rambur, [1842])
Family: Hesperiidae
Subfamily: Pyrginae
Identification: Fringes are checkered. Upperside is gray-black with squarish white checks. Underside of hindwing is gray-brown to black checkered with whitish spots; veins are white. Male has a costal fold enclosing scent scales on the forewing.
Wing Span: 1 - 1 5/16 inches (2.5 - 3.3 cm).
Life History: Males patrol and occasionally perch all day in open areas in their search for receptive females. Eggs are deposited singly on leaves of the host plant. Caterpillars feed within shelters of webbed leaves.
Flight: One brood from March-May in the south, requires 2 years to develop in the subarctic.
Caterpillar Hosts: Wild strawberry (Fragaria virginiana), Canadian cinquefoil (Potentilla canadensis), varileaf cinquefoil (P. diversifolia), and cloudberry (Rubus chamaemorus); all in the rose family (Rosaceae).
Adult Food: Nectar from flowers of low-growing plants including blueberry, wild strawberry, and Canadian cinquefoil.
Habitat: Open areas near woods including valley bottoms, barrens, meadows, grassy hillsides, tundra, scrub oak openings.
Range: Holarctic. In North America, from Alaska south and east to central Ontario and northern Michigan. Isolated populations in Labrador and arctic Quebec, the central Appalachians, and the Rocky Mountains from central Alberta south to northern New Mexico.
Conservation: Populations on eastern shale barrens (subspecies wyandot) should be monitored and conserved.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: Determine management needs for subspecies wyandot and implement if necessary.
Taxonomy Notes:
Images of Pyrgus centaureae
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The map below displays all verified sighting records in the BAMONA database for this species. Each record is indicated with a yellow dot. The orange dots on the map provide access to information about the 400 most recently verified sightings of this species. In some instances, there are several records at the same location. Use the table view to access these records.
Instructions: Click on the map and move your mouse to pan.
Zoom by using the plus [+] and minus [-] on the left side of the map.
To change which map layers are displayed, click on the plus sign [+] on the right side of the map.
The fifty most recently verified sightings are below. See more recently verified sightings of all species.
| Observation Date | Submitter | Region |
Verified Date |
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|---|---|---|---|---|---|
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July 04, 2007 | RaisingButterflies.org | Daggett County, Utah, United States | November 28, 2011 | Details |
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July 24, 2008 | RaisingButterflies.org | Duchesne County, Utah, United States | November 28, 2011 | Details |
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July 20, 2011 | jlboone@aol.com | San Juan County, Colorado, United States | August 06, 2011 | Details |
| July 24, 1980 | legacy.reporter (No collector) | Big Horn County, Wyoming, United States | October 29, 2008 | Details | |
| July 12, 1982 | legacy.reporter (No collector) | Johnson County, Wyoming, United States | October 29, 2008 | Details | |
| July 26, 1983 | legacy.reporter (S.J. Kohler) | Carbon County, Montana, United States | October 29, 2008 | Details | |
| July 04, 1987 | legacy.reporter (R.A. & M.J. Rahn) | Carbon County, Montana, United States | October 29, 2008 | Details | |
| July 23, 1933 | legacy.reporter (No collector) | Larimer County, Colorado, United States | October 29, 2008 | Details | |
| June 24, 1967 | legacy.reporter (S.W. Gross) | Boulder County, Colorado, United States | October 29, 2008 | Details | |
| June 28, 1953 | legacy.reporter (S.S. Nicolay) | Chaffee County, Colorado, United States | October 29, 2008 | Details | |
| July 09, 1955 | legacy.reporter (S.S. Nicolay) | Boulder County, Colorado, United States | October 29, 2008 | Details | |
| June 22, 1955 | legacy.reporter (S.S. Nicolay) | Clear Creek County, Colorado, United States | October 29, 2008 | Details | |
| July 16, 1949 | legacy.reporter (D. Eff) | Clear Creek County, Colorado, United States | October 29, 2008 | Details | |
| July 19, 1949 | legacy.reporter (D. Eff) | Boulder County, Colorado, United States | October 29, 2008 | Details | |
| July 02, 1953 | legacy.reporter (S.S. Nicolay) | San Juan County, Colorado, United States | October 29, 2008 | Details | |
| July 16, 1985 | legacy.reporter (No collector) | Park County, Colorado, United States | October 29, 2008 | Details | |
| June 28, 1941 | legacy.reporter (R. Whitaker) | Lake County, Colorado, United States | October 29, 2008 | Details | |
| June 10, 1939 | legacy.reporter (R. Whitaker) | Park County, Colorado, United States | October 29, 2008 | Details | |
| June 26, 1953 | legacy.reporter (S.S. Nicolay) | Park County, Colorado, United States | October 29, 2008 | Details | |
| June 27, 1939 | legacy.reporter (R. Whitaker) | Jefferson County, Colorado, United States | October 29, 2008 | Details | |
| May 26, 1935 | legacy.reporter (W.S. McAlpine) | Montmorency County, Michigan, United States | October 29, 2008 | Details | |
| May 31, 1943 | legacy.reporter (G. Rawson) | Oscoda County, Michigan, United States | October 29, 2008 | Details | |
| May 30, 1935 | legacy.reporter (W.S. McAlpine) | Montmorency County, Michigan, United States | October 29, 2008 | Details | |
| June 02, 1942 | legacy.reporter (G. Rawson) | Oscoda County, Michigan, United States | October 29, 2008 | Details | |
| January 01, 1950 | legacy.reporter (W.F. Fiske) | Polk County, North Carolina, United States | October 29, 2008 | Details | |
| April 19, 1938 | legacy.reporter (No collector) | Hampshire County, West Virginia, United States | October 29, 2008 | Details | |
| May 08, 1939 | legacy.reporter (A.H. Clark) | Hampshire County, West Virginia, United States | October 29, 2008 | Details | |
| May 03, 1937 | legacy.reporter (A.H. Clark) | Fairfax County, Virginia, United States | October 29, 2008 | Details | |
| May 12, 1898 | legacy.reporter (No collector) | Montgomery County, Virginia, United States | October 29, 2008 | Details | |
| May 10, 1947 | legacy.reporter (A.H. Clark) | Augusta County, Virginia, United States | October 29, 2008 | Details | |
| June 03, 1935 | legacy.reporter (Sexton) | Shenandoah County, Virginia, United States | October 29, 2008 | Details | |
| April 24, 1980 | legacy.reporter (D.B. Adelberg) | Allegany County, Maryland, United States | October 29, 2008 | Details | |
| April 22, 1976 | legacy.reporter (R.S. Simmons) | Allegany County, Maryland, United States | October 29, 2008 | Details | |
| May 07, 1964 | legacy.reporter (R.S. Simmons) | Allegany County, Maryland, United States | October 29, 2008 | Details | |
| May 05, 1960 | legacy.reporter (R.S. Simmons) | Allegany County, Maryland, United States | October 29, 2008 | Details | |
| May 04, 1961 | legacy.reporter (R.S. Simmons) | Allegany County, Maryland, United States | October 29, 2008 | Details | |
| May 06, 1965 | legacy.reporter (R.S. Simmons) | Allegany County, Maryland, United States | October 29, 2008 | Details | |
| May 01, 1956 | legacy.reporter (R.S. Simmons) | Allegany County, Maryland, United States | October 29, 2008 | Details | |
| May 01, 1966 | legacy.reporter (R.S. Simmons) | Allegany County, Maryland, United States | October 29, 2008 | Details | |
| May 01, 1967 | legacy.reporter (R.S. Simmons) | Allegany County, Maryland, United States | October 29, 2008 | Details | |
| May 04, 1974 | legacy.reporter (L.J. Melton) | Allegany County, Maryland, United States | October 29, 2008 | Details | |
| May 01, 1958 | legacy.reporter (R.S. Simmons) | Allegany County, Maryland, United States | October 29, 2008 | Details | |
| May 01, 1889 | legacy.reporter (E.J. Shoemaker) | Allegany County, District of Columbia, United States | October 29, 2008 | Details | |
| May 21, 1999 | legacy.reporter (W.D. Kearfott) | Essex County, New Jersey, United States | October 29, 2008 | Details | |
| May 07, 1999 | legacy.reporter (W.D. Kearfott) | Essex County, New Jersey, United States | October 29, 2008 | Details | |
| May 05, 1907 | legacy.reporter (E.J. Shoemaker) | Passaic County, New Jersey, United States | October 29, 2008 | Details | |
| January 01, 1950 | legacy.reporter | Passaic County, New Jersey, United States | October 29, 2008 | Details | |
| May 07, 1939 | legacy.reporter (O. Buchholz) | Morris County, New Jersey, United States | October 29, 2008 | Details | |
| January 01, 1950 | legacy.reporter | Passaic County, New Jersey, United States | October 29, 2008 | Details | |
| July 15, 2004 | stevekohler (Steve Kohler) | Granite County, Montana, United States | January 23, 2008 | Details |
