Peak Count Data for Butterflies at Fermilab with Remnant Status

A list of butterflies observed on the 6800 acre Fermilab site, 40 miles west of Chicago, Illinois.
A high concentration of these butterflies can indicate good quality natural habitat.

Butterfly Species	Date Recorded	Peak Count per hour	for 1999   for 2000   for 2001   for 2002   for 2003

Acadian Hairstreak Satyrium acadica	06/23/1999 1   07/08/2001 1   07/03/2002 1   07/09/2003 1
Banded Hairstreak Satyrium calanus	06/21/1999 5   06/22/2000 2   06/25/2001 5   07/14/2002 1   07/14/2003 4
Black Dash Euphyes conspicua	07/06/1999 2   07/07/2000 2   07/13/2001 2   07/12/2002 2   07/16/2003 1
Bronze Copper Lycaena hyllus	06/08/1999, 08/16/1999 3   08/07/2000 3   08/03/2001 5   09/11/2002 1   07/29/2003 3
Coral Hairstreak Satyrium titus	07/03/2000 5   06/30/2001 7   06/21/2002 3   07/13/2003 7
Dion Skipper Euphyes dion	07/05/2001 12   07/16/2002 20   07/09/2003 3
Eyed Brown Satyrodes eurydice	07/06/1999 3   06/29/2000 4   07/08/2001 1   07/13/2003 5
Great Spangled Fritillary Speyeria cybele	06/21/1999 8   06/22/2000 5   07/05/2001 11   07/03/2002 4   07/14/2003 10
Least Skipper Ancyloxypha numitor	06/08/1999 2   08/21/2000 20+ + 08/04/2001 20+ + 06/21/2002 5   06/24/2003 3
Meadow Fritillary Boloria bellona	06/24/2001, 09/02/2001 5   06/28/2002 15   07/31/2003 20+ +
Northern Pearly-Eye Enodia anthedon	08/01/2000 4   07/08/2001 1   07/20/2002 15   07/14/2003 4
Pipevine Swallowtail Battus philenor	06/06/1999 1
Purplish Copper Lycaena helloides	09/07/1999 2   09/01/2000 9   09/11/2001 5   08/27/2002 3   09/09/2003 14
Viceroy Limenitis archippus	06/22/1999 6   08/24/2000 10   08/04/2001 18   07/20/2002 5   07/29/2003 3

Butterfly Data Collection by: Tom Peterson
Web Maintainer: ed-webmaster@fnal.gov
Last Update: Oct. 20, 2007
eddata.fnal.gov/lasso/butterfly_search/peak_count_cn_rem.lasso