Butterflies of Berks County, Pennsylvania
Sightings in 2003

The following butterfly species were seen in Berks County, Pennsylvania in 2003. No doubt many other species were present, but not seen. The late and unusually cold spring kept observers from noting several spring species. The Atlas of Pennsylvania Butterflies, edited by Dr. David Wright, lists 104 species for Berks County. The Ocola Skipper, found twice in 2003 by Ken Lebo, increases the number to 105. Some of those 105 species are historical records and many are of strays or southern migrants which are not often found in the county. Ninety of the one hundred five species are known to have been seen in the past 40 years. This year two sightings were made of the Giant Swallowtail, one in northern Berks (Tom Lechy) and one in southern Berks (Harold Lebo). Those, along with the Ocola Skipper, are the most notable sightings this year. Since 1997 the following five species have been added to the Berks County list: Sachem (a skipper), Broad-winged Skipper, Horace's Duskywing, Ocola Skipper, and Red-banded Hairstreak. Those reporting are: Karl R. Gardner, Ryan Woolwine, Ken Lebo, Harold Lebo, and Tom Lechy. [Correction noted on Jan 3, 2005. The Gray Comma was also added to the county list since 1997, making it six species since then.]

Sightings in 2003    (63 species)
Berks County, Pennsylvania - 2003

1 Silver-spotted Skipper
2 Dreamy Duskywing
3 Sleepy Duskywing
4 Juvenal's Duskywing
5 Wild Indigo Duskywing
6 Checkered Skipper
7 Swarthy Skippper
8 Least Skipper
9 European Skipper
10 Leonard's Skipper
11 Cobweb Skipper
12 Peck's Skipper
13 Tawny-edged Skipper
14 Crossline Skipper
15 Long Dash
16 Northern  Broken Dash
17 Little Glassy Wing
18 Sachem
19 Delaware Skipper
20 Hobomok Skipper
21 Zabulon Skipper
22 Dun Skipper
23 Ocola Skipper  (County Record) 
24 Pipevine Swallowtail
25 Black Swallowtail
26 Tiger Swallowtail
27 Spicebush Swallowtail
28 Giant Swallowtail 
29 Cabbage Butterfly
30 Clouded Sulphur
31 Alfalfa Butterfly

32 American Copper
33 Banded Hairstreak
34 Red-banded Hairstreak 
35 Brown Elfin
36 Gray Hairstreak
37 Eastern Tailed Blue
38 Spring Azure
39 Summer Azure
40 Appalachian Blue
41 Snout Butterfly
42 Variegated Fritillary
43 Great Spangled Fritillary
44 Aphrodite
45 Meadow Fritillary
46 Pearl Crescent
47 Baltimore
48 Question Mark
49 Comma
50 Mourning Cloak
51 American Painted Lady
52 Painted Lady
53 Red Admiral
54 Buckeye
55 Red-spotted Purple
56 Viceroy
57 Hackberry Butterfly
58 Tawny Emperor
 Subfamily SATYRINAE
59 Northern Pearly Eye
60 Appalachian Eyed Brown
61 Little Wood Satyr
62 Common Wood Nymph
 Subfamily DANAINAE
63 Monarch
Past year butterfly species sightings in Berks County, PA
2003 (63)
2004 (63)
2005 (62)
2006 (61)
2007 (64)
2008 (67)
2009 (73)
2010 (80)
2011 (72)
2012 (78)
2013 (74)
No data
2015 (71)
2016 (61)
2017 (62)
A site with data on butterfly distributions by county for North America can be found at North American Butterflies. This government sponsored site is updated about once a year, although it is currently behind for many states. There is a small informal group of local butterfly collectors/observers in Berks Co. Pennsylvania If you are interested in butterflies and would like to meet this group, contact 

Return to Berks County Nature home page.