BERKS COUNTY NATURE Home Page
Butterflies of Berks County, Pennsylvania
Sightings in 2005

The following butterfly species (those in bold) were seen in Berks County, Pennsylvania in 2005. The listed date is the first date seen in 2005. There have been records of 106 species seen in Berks County. The list below includes all those reported in 2003, 2004, and 2005, a total of 77 species. The four species seen in 2005, but not in 2003 or 2004 are shown in red. No doubt other species were present, but not seen. Some of the 106 species are historical records and many are of strays or southern migrants which are not often found in the county. Ninety one of the one hundred six species are known to have been seen in the past 40 years. The most notable sightings this year were those of the White-M Hairstreak, Giant Swallowtail, Ocola Skipper, Mulberry Wing, and Black Dash. Since 1997 the following six species have been added to the Berks County list: Sachem (a skipper), Broad-winged Skipper, Horace's Duskywing (a skipper), Ocola Skipper, Gray Comma, and Red-banded Hairstreak. None were added in 2005.

Sightings in 2005    (62 species)  (63 species were seen in 2004 and also in 2003.)
A total of 77 species have been seen in the three years.
Berks County, Pennsylvania - 2005

 Family HESPERIIDAE
1 Silver-spotted Skipper     06/22/05
2 Hoary Edge                        06/24/05
3 Northern Cloudywing
4 Dreamy Duskywing
5 Sleepy Duskywing         April 
6 Juvenal's Duskywing    05/08/05
7 Horace's Duskywing     06/09/05
8 Wild Indigo Duskywing  06/09/05
9 Checkered Skipper           07/09/05
10 Common Sootywing      07/12/05 caterpillars
11 Swarthy Skippper         07/20/05
12 Least Skipper                08/14/05
13 European Skipper       May
14 Fiery Skipper
15 Leonard's Skipper
16 Cobweb Skipper
17 Indian Skipper
18 Peck's Skipper               08/14/05
19 Tawny-edged Skipper   08/14/05
20 Crossline Skipper         08/21/05
21 Long Dash
22 Northern  Broken Dash  06/29/05
23 Little Glassy Wing       06/25/05
24 Sachem                          06/12/05
25 Delaware Skipper 
26 Mulberry Wing              07/16/05
27 Hobomok Skipper         05/18/05
28 Zabulon Skipper           08/14/05
29 Broad-winged Skipper       07/20/05
30 Black Dash                      07/16/05
31 Dun Skipper                   06/24/05
32 Ocola Skipper                 Sept
 Family PAPILIONIDAE
33 Pipevine Swallowtail 
34 Zebra Swallowtail
35 Black Swallowtail             June
36 Tiger Swallowtail              05/7/05
37 Spicebush Swallowtail     05/7/05
38 Giant Swallowtail            August
 Family PIERIDAE 
39 Cabbage Butterfly            04/01/05
40 Clouded Sulphur             04/16/05
41 Orange Sulphur                05/01/05
42 Sleepy Orange

Family LYCAENIDAE
43 American Copper          07/16/05
44 Banded Hairstreak        06/24/05
45 Striped Hairstreak         06/24/05
46 Red-banded Hairstreak   08/14/05
47 Brown Elfin                   04/20/05
48 White-m Hairstreak      05/08/05
49 Gray Hairstreak         8/18/05
50 Eastern Tailed Blue    08/14/05
51 Spring Azure                April
52 Summer Azure             06/12/05
53 Appalachian Azure
Family LIBYTHEIDAE
54 Snout Butterfly
 Family NYMPHALIDAE
55 Variegated Fritillary         08/21/05
56 Great Spangled Fritillary    06/21/05
57 Aphrodite                          07/09/05
58 Meadow Fritillary            April
59 Pearl Crescent                   05/08/05
60 Baltimore                           07/09/05
61 Question Mark
62 Comma                              05/01/05
63 Gray Comma 
64 Mourning Cloak               03/07/05
65 American Painted Lady   06/12/05
66 Painted Lady                     06/09/05
67 Red Admiral                     07/13/05 caterpillars
68 Buckeye
69 Red-spotted Purple           06/24/05
70 Viceroy                               07/16/05
Subfamily APATURINAE
71 Hackberry Butterfly         06/24/05
72 Tawny Emperor                06/24/05
 Subfamily SATYRINAE
73 Northern Pearly Eye         07/09/05
74 Appalachian Eyed Brown   07/09/05
75 Little Wood Satyr                 05/28/05
76 Common Wood Nymph       07/09/05
 Subfamily DANAINAE
77 Monarch                            06/15/05
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 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.

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