Jeff Skrentny:
Black Swallowtail Butterfly (Papilio polyxenes) unknown location August 2009 Jeff Skrentny
Jeff Skrentny:
Black Swallowtail Butterfly (Papilio polyxenes) unknown location August 2009 Jeff Skrentny
Jeff Skrentny:
Painted Lady (Vanessa cardui) Montrose Priairie water feature Cook County IL September 2009 Jeff Skrentny IMG_2088
Jeff Skrentny:
Comma Butterfly Douglas Park Cook County IL April 2012 IMG_0843
Jeff Skrentny:
Weidemeyer's Admiral (Limenitis weidemeyerii) Woody's Ranch Fremont County CO June 2012 IMG_2510
Jeff Skrentny:
- Weidemeyer's Admiral (Limenitis weidemeyerii) Woody's Ranch Fremont County CO June 2012 IMG_2515
Jeff Skrentny:
- Weidemeyer's Admiral (Limenitis weidemeyerii) Woody's Ranch Fremont County CO June 2012 IMG_2518
Jeff Skrentny:
- Western Tiger Swallowtail? (Papilio rutulu) Woody's Ranch Fremont County CO June 2012 IMG_2546
Jeff Skrentny:
Unknown Skipper Hidden Lake DuPage County IL July 2012 Jeff Skrentny IMG_3441
Jeff Skrentny:
Fiery Skipper Butterfly IBSP Hawkwatch Pavillion Lake County IL September 2012 Jeff Skrentny IMG_4743
Jeff Skrentny:
Cabbage White Butterfly (Pieris rapae) Bill McBride Prairie Chicago Cook County IL September 2012 Jeff Skrentny IMG_5010
Jeff Skrentny:
Cabbage White Butterfly (Pieris rapae) Bill McBride Prairie Chicago Cook County IL September 2012 Jeff Skrentny IMG_5012
Jeff Skrentny:
Butterfly Bill McBride Prairie Chicago Cook County IL October 2012 Jeff Skrentny IMG_5346
Jeff Skrentny:
- Pearl Crescent Butterfly (Phyciodes tharos) Duffy Grasslands Palos Cook County IL May 2013 Jeff Skrentny FB0529 IMG_2107
Jeff Skrentny:
Viceroy Butterfly (Limenitis archippus) Bergman Filed Palos Cook County IL June 2013 Jeff Skrentny FB0611 IMG_2396
Jeff Skrentny:
Black Swallowtail Butterfly (Papilio polyxenes) (male) Duffy Grasslands Palos Cook County IL June 2013 Jeff Skrentny FB0612 IMG_2412
Jeff Skrentny:
Pearl Crescent Butterfly (Phyciodes tharos) Duffy Grassland Palos Cook County IL June 2012 Jeff Skrentny IMG_2415
Jeff Skrentny:
Spring Azure Butterfly (Celastrina ladon) Montrose Prairie Chicago Cook County IL June 2013 Jeff Skrentny FB0610 IMG_2441
Jeff Skrentny:
Red-spotted Purple Butterfly (Limenitis arthemis astyanax) Duffy Woods Palos Cook County IL June 2013 Jeff Skrentny FB0613 IMG_2513
Jeff Skrentny:
Mourning Cloak (Nymphalis antiopa) Montrose Prairie Chicago Cook County IL June 2013 Jeff Skrentny FB0713 IMG_2521
Jeff Skrentny:
Least Skipper Butterfly (Ancyloxypha numitor) Bergman Field Palos Cook County IL June 2013 Jeff Skrentny FB0617 IMG_2634
Jeff Skrentny:
Little Wood-Satyr Butterfly (Megisto cymela) Duffy Woods Palos Cook County IL June 2013 Jeff Skrentny FB0712 IMG_2726
Jeff Skrentny:
Gray Comma (Polygonia progne) Duffy Woods Palos Cook County IL June 2013 Jeff Skrentny IMG_2761
Jeff Skrentny:
Gray Comma (Polygonia progne) Duffy Woods Palos Cook County IL June 2013 Jeff Skrentny IMG_2762
Jeff Skrentny:
Gray Comma (Polygonia progne) Duffy Woods Palos Cook County IL June 2013 Jeff Skrentny FB0620 IMG_2767
Jeff Skrentny:
Eastern Comma Butterfly (Polygonia comma) Duffy Woods Palos Cook County IL June 2013 Jeff Skrentny FB0708 IMG_2780
Jeff Skrentny:
Silver-spotted Skipper Butterfly (Epargyreus clarus) Duffy Woods Palos Cook County IL June 2013 Jeff Skrentny FB0709 IMG_2792
Jeff Skrentny:
Silver-spotted Skipper Butterfly (Epargyreus clarus) Duffy Woods Palos Cook County IL June 2013 Jeff Skrentny IMG_2794
Jeff Skrentny:
Hackberry Emperor Butterfly (Asterocampa celtis) Columbia Woods Palos Cook County IL June 2013 Jeff Skrentny FB0711 IMG_2816
Jeff Skrentny:
Anise Swallowtail Butterfly (Papilio zelicaon) Mt Coolidge Fire Lookout Tower Custer State Park Custer County SD June 2013 Jeff Skrentny FB0628 IMG_3061
