Butterflies of Lancaster County, Pennsylvania ---- Sightings in 2018
Photographs of Lancaster County Butterflies from 2013

(2012 photos)  (2011 photos)   (2010 photos)

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Berks County Butterfly Sightings Here

    The butterfly species with dates have been seen in Lancaster County, Pennsylvania this year. There are records of 109 species for Lancaster County. The list below includes all those seen in 2009 through 2017, a total of 89 species.  New species seen in 2018, but not in 2009 through 2017 (No data recorded in 2014) will be added in red. No species were added to the list in 2017.  A printable list of the 109 species at (Lancaster Butterflies). 
If you have a reliable sighting not on this list for 2018, please send an email to . If you are not sure, but have a photograph, please send it. Contributors are vital to this data. We will appreciate your help. 
Beginning in 2009 and since 2016 covering 12 months
Sightings for 2018 - 45 species ---  (In July 23, June 28, May 25, April 5, March 2, February 1)

(Updated July 16, 2018.)
Latest new species seen: Hackberry Emperor, Swarthy Skipper, Buckeye, Horace's Duskywing, Checkered Skipper, Appalachian Brown.  
Thank you to all of our contributors (8) listed below.
The day of the first sighting is listed for each month.
Family HESPERIIDAE Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Last
1 Silver-spotted Skipper 12 7 2
2 Long-tailed Skipper
3 Hoary-edged Skipper
4 Southern Cloudywing 
5 Northern Cloudywing
6 Dreamy Duskywing 
7 Sleepy Duskywing
8 Juvenal's Duskywing 
9 Horace's Duskywing  14
10 Wild Indigo Duskywing 8
11 Common Checkered Skipper  8
12 Common Sootywing
13 Swarthy Skipper 14
14 Clouded Skipper
15 Least Skipper  27 9
16 European Skipper 
17 Fiery Skipper 
18 Leonard's Skipper
19 Cobweb Skipper 
20 Indian Skipper
21 Peck's Skipper  18
22 Tawny-edged Skipper
23 Crossline Skipper 13
24 Long Dash 
25 Northern Broken Dash 
26 Little Glassy Wing 15
27 Sachem 23 4 3
28 Delaware Skipper 
29 Mulberry Wing
30 Hobomok Skipper  23
31 Zabulon Skipper 
32 Broad-winged Skipper
33 Black Dash 
34 Dun Skipper 
35 Dusted Skipper  13
36 Ocola Skipper
Family PAPILIONIDAE Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Last
37 Pipevine Swallowtail  10 7
38 Zebra Swallowtail  1 14
39 Black Swallowtail  15 30 5
40 Giant Swallowtail 
41 Eastern Tiger Swallowtail  7 4 14
42 Spicebush Swallowtail 7 7 8
Family PIERIDAE Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Last
43 Cabbage Butterfly = Cabbage White  31 14 1 1 7
44 Falcate Orangetip 1
45 Clouded Sulphur  3 14
46 Orange Sulphur 23 1 2
47 Cloudless Sulphur
48 Little Yellow
49 Sleepy Orange 
50 Dainty Sulphur 
Family LYCAENIDAE Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Last
51 Harvester 
52 American Copper 
53 Bronze Copper
54 Coral Hairstreak
55 Banded Hairstreak  21 5
56 Red-banded Hairstreak
57 Juniper Hairstreak  20 14
58 Brown Elfin  1
59 Henry's Elfin
60 Pine Elfin
61 White-m Hairstreak 
62 Gray Hairstreak  4
63 Eastern Tailed Blue 7 25
64 Spring Azure  12 1
65 Summer Azure  7
66 Appalachian Azure
Family NYMPHALIDAE
 Subfamily LIBYTHEINAE 
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Last
67 Snout Butterfly  19
Subfamily HELICONIINAE
68 Variegated Fritillary 7
69 Great Spangled Fritillary 15
70 Regal Fritillary
71  Meadow Fritillary 30 1 9 7
72  Silvery Checkerspot 15
Subfamily NYMPHALINAE
73 Pearl Crescent 1 9
74 Baltimore 
75 Question Mark
76 Eastern Comma 27 29 11
77 Mourning Cloak  1
78 American Painted Lady 
79 Painted Lady  23 8
80 Red Admiral 14 15 7 2
81 Buckeye  14
82 Red-spotted Purple  20 30 14
83 Viceroy
Subfamily APATURINAE
84 Hackberry Butterfly = Hackberry Emperor 14
85 Tawny Emperor  4 14
Subfamily SATYRINAE
86 Appalachian Eyed Brown  30
87 Little Wood Satyr  7
87 Common Wood Nymph 
Subfamily DANAINAE
89 Monarch 13 8
Monthly Totals 1 2 5 25 28 23
Yearly butterfly species sightings in Lancaster County, Pennsylvania
2009 (67)
2010 (72)
2011 (70)
2012 (79)
2013 (75)
2014 (__)
2015 (60)
2016 (62)
2017 (61)
2018 (---)
Contributors to this year's sightings are: Fred Habegger, Nancy and Bob Schutsky, Dave Sonnen, Luella and Ray Uhlig, Carol Welsh, and Ryan Woolwine.
For Berks County, PA butterfly sightings go to Berks Butterfly Sightings - 2018.

A site with data on butterfly distributions by county (and photographs) for North America can be found at Butterflies and Moths of NA.   (http://www.butterfliesandmoths.org/)