THE BUTTERFLIES OF HOWARD COUNTY, MARYLAND

A Biological Summary and Checklist in Phylogenetic Order by Richard H. Smith.

In addition to entertaining us with their bright colors and interesting life histories, butterflies serve as easily observed indicators of the biotic diversity and the true degree of unaltered natural environment retained in local areas. This is due to their attachment to an array of specialized host plants and to their notable sensitivity to environmental disturbances and introduced chemical agents during the larval stage. Thus, the variety of butterfly species obtained from a local survey and photographic record can contribute to an environmental understanding, and the survey and photographic activity can offer a pleasant pastime and beautiful photo-record for sunny spring and summer days spent outdoors.

There is a checklist available to aid in this endeavor by summarizing the known diversity and biological data on butterfly species at the Howard County level. For a copy of The Butterflies of Howard County, Maryland: A Biological Summary and Checklist in PDF format, click HERE.

This web page is for people who are curious as to what a particular species looks like (in various forms) with several photos (including male and female if they are different). It may help them verify their identification of a butterfly they are looking at or photographed. And it is a way to enjoy the butterfly photos provided.

If you want more information and photos of a particular species, click on the common name in the sections below; it will bring up the appropriate page from the Butterflies and Moths of North America web page. You may also want to go to BugGuide.

Information was compiled by Richard H. (Dick) Smith. All photos have been reviewed by Dick, and he has provided the margin comments as aids to identification.

This is a work in process, and will be periodically updated as more photos are sent to the web. For the list of butterfly species photos still needed, go to Photos still needed!



Start by deciding which of the major phylogenetic groups the butterfly is in. Clicking on the group name will take you to the section with the species and photos for that group. Clicking on any photo will enlarge the photo on most screens. (Return from the enlarged photo to this web page by clicking on the left arrow in the upper left corner of your browser.)

Place name abbreviations: MPEA - Middle Patuxent Environment Area; PRSP - Patuxent River State Park; PVSP - Patapsco River Valley State Park; UMDCF - University of Maryland Central Farm.

Spread-winged Skippers
Horace's Duskywing
Grass-Skippers
Fiery Skipper
Swallowtails
Black Swallowtail
Whites & Sulphurs
Sleepy Orange
Gossamer wings
Gray Hairstreak
Brushfoots
Great Spangled Fritillary
Satyrs
Little Wood Satyr
Milkweed Butterflies
89Monarch4931101409_ccdcb75dc0_b
Major groups are separated by a wide yellow banner.
Species caption line: Cols 1 - 2: Species common name (followed by the wingspan range in inches). Col 3: Occurrence level & flight period. Col 4: Habitat. Col 5: Typically visits (for nectaring). Col 6: Larval host plants.

Spread-winged Skippers

Silver-spotted Skipper (1.75–2.7") Common: May-Sep Open woods, fields, gardens Variety of flowers Locusts, tick trefoils, wisteria
Silver-spotted Skipper

April 23, 2011
Meadowbrook Park
Wesley Earp

Silver-spotted Skipper

September 12, 2010
Hipsley Mill (PRSP)
Scott Berglund

Silver-spotted Skipper

August 22, 2006
Swansfield (Columbia)
June Tveekrem

Silver-spotted Skipper

Female
July 3, 2011
Mount Pleasant
Bonnie Ott

Notice how much the color of the forewing yellow-orange band can vary.

Juvenal's Duskywing (1.25–1.9") Common: M-Apr to L-May Woods trails & edges Mud puddles Red oaks, white oaks
Juvenal's Duskywing

April 18, 2008
Long Corner (PRSP)
Sue Earp

Juvenal's Duskywing

April 18, 2008
Long Corner (PRSP)
Sue Earp

Note the two spots on the underside of the hindwing near the edge in the second photo. This view is necessary during April and May in order to distinguish Juvenal's Duskywing from the almost identical Horace's Duskywing (which lacks these spots). The two species look similar when viewed from the top.

Juvenal's has a single brood in the spring and is not seen after the end of May.

Horace's Duskywing (1.4–1.9") Common: L-Apr to E-Sep Woods (May); marshes (Jul) Buttonbush Red oaks, white oaks
Horace's Duskywing

July 19, 2008
MPEA
Cheryl Farfaras

Horace's Duskywing

July 16, 2011
Mount Pleasant
Bonnie Ott

Horace's Duskywing

August 17, 2010
Ellicott City
Bonnie Ott

Horace's Duskywing

September 19, 2010
Rockburn Branch Park
Bonnie Ott

Horace's Duskywing

Female
July 17, 2011
Western Regional Park
Bonnie Ott

Wild Indigo Duskywing (1.3–1.7") Common: Jun, Aug to E-Sep Open areas, powerline cuts Variety of flowers Wild indigo & crown vetch
Wild Indigo Duskywing

May 8, 2009
Daniels (PVSP)
Scott Berglund

Wild Indigo Duskywing

August 30, 2009
Unknown
Bonnie Ott

Wild Indigo Duskywing

September 8, 2006
Centennial Park
June Tveekrem

Wild Indigo Duskywing

October 4, 2011
Elkhorn Garden Plots
Richard Orr

Common Checkered-Skipper (1–1.5") Uncommon: L-Aug to E-Oct Open, weedy areas White clover Mallows, hollyhocks
Checkered Skipper

October 2, 2010
West Friendship Park
Bonnie Ott

Checkered Skipper

October 8, 2011
Centennial Park
Annette Allor

Checkered Skipper

October 9, 2011
Centennial Park
Annette Allor

Checkered Skipper

September 18, 2010
Rockburn Branch Park
Bonnie Ott

Checkered Skipper

October 15, 2011
Centennial Park
Annette Allor

Checkered Skipper

August 20, 2011
Western Regional Park
Sue Muller

 

Grass-Skippers

Clouded Skipper (1.25–1.75") Rare: L-Aug & Sep Brushy wet meadows New York ironweed Woolly beardgrass
Clouded Skipper

July 19, 2008
MPEA
Cheryl Farfaras

Clouded Skipper

July 19, 2008
MPEA
Cheryl Farfaras

Clouded Skipper

July 19, 2008
MPEA
Cheryl Farfaras

Least Skipper (0.8–1.2") Common: L-May to E-Oct Grassy stream edges Broad grass blades Bluegrass, rice cutgrass
Least Skipper

September 15, 2009
UMDCF
Bonnie Ott

Least Skipper

Male
July 3, 2011
West Friendship Park
Bonnie Ott

Least Skipper

July 9, 2011
Rockburn Branch Park
Bonnie Ott

Least Skipper

April 23, 2011
Patuxent Branch Trail
Wesley Earp

Fiery Skipper (1.25–1.5") Uncommon: L-Aug to M-Sep Marshy areas Tickseed sunflower Crabgrass, Bermuda grass
Fiery Skipper

September 24, 2009
Mount Pleasant
Bonnie Ott

Fiery Skipper

Male
September 19, 2010
Mount Pleasant
Bonnie Ott

Fiery Skipper

Male
October 8, 2011
Font Hill Wetland Park
Annette Allor

Fiery Skipper

Male
September 25, 2011
Font Hill Wetland Park
Annette Allor

Fiery Skipper

Male
September 25, 2011
Font Hill Wetland Park
Annette Allor

Fiery Skipper

Female
September 24, 2011
Mount Pleasant
Bonnie Ott

Fiery Skipper

Female
September 24, 2011
Mount Pleasant
Bonnie Ott

Fiery Skipper

Female
September 24, 2011
Mount Pleasant
Bonnie Ott

Peck's Skipper (1–1.25") Common: May to M-Jun, Aug Wet Meadows New York Ironweed Rice cutgrass
Peck's Skipper

May 31, 2007
Swansfield (Columbia)
June Tveekrem

Peck's Skipper

July 16, 2010
Long Corner (PRSP)
Richard Orr

Peck's Skipper

July 16, 2011
Font Hill Wetland Park
Bonnie Ott

Peck's Skipper

August 22, 2011
Font Hill Wetland Park
Annette Allor

Peck's Skipper

July 24, 2007
Clarksville
Wesley Earp

In last photo, male is on the right

Tawny-edged Skipper (0.8–1.5") Uncommon: L-May & Aug Wet Meadows New York Ironweed Panic grasses
Twany-edged Skipper

Male
June 2, 2011
Mount Pleasant
Bob Solem

Twany-edged Skipper

Female
August 20, 2011
Warfields Pond Park
Sue Muller

Twany-edged Skipper

Female
August 20, 2011
Warfields Pond Park
Sue Muller

Twany-edged Skipper

Female
August 17, 2007
Clarksville
Wesley Earp

Crossline Skipper (1.1–1.5") Abundant: Jun to L-Jul, Sep Wet meadows, dry hillsides Swamp milkweed Purpletop grass
Crossline Skipper

May 29, 2006
River Hill High School
June Tveekrem

Crossline Skipper

July 30, 2011
Ellicott City
Bonnie Ott

Little Glassywing (1.1–1.5") Common: M-Jun to Aug Wet meadows & woods edges New York Ironweed Purpletop grass
Little Glassywing

Male
August 6, 2010
Ellicott City
Bonnie Ott

Little Glassywing

August 19, 2006
Swansfield (Columbia)
June Tveekrem

Little Glassywing

Female
July 19, 2003
MPEA
Cheryl Farfaras

Little Glassywing

Female
July 3, 2011
Mount Pleasant
Bonnie Ott

Little Glassywing

Female
August 16, 2010
Ellicott City
Bonnie Ott

Little Glassywing

Female
August 19, 2006
Swansfield (Columbia)
June Tveekrem

Males do not have the large rectangular white spot on the forewing

Sachem (1.25–1.7") Abundant: M-Jul thru Sep Lawns, fields, & marshes Tickseed sunflower Crabgrass, Bermuda grass
Sachem (male)

Male
July 23, 2006
Swansfield (Columbia)
June Tveekrem

Sachem (male)

Male
September 4, 2009
Mount Pleasant
Scott Berglund

Sachem (male)

Male
July 20, 2010
Mount Pleasant
Scott Berglund

Sachem (male)

Male
July 20, 2010
Mount Pleasant
Scott Berglund

Sachem (male)

Male
September 4, 2009
Mount Pleasant
Scott Berglund

Sachem (male)

Male
July 20, 2010
Mount Pleasant
Scott Berglund

Sachem (male)

Male
July 16, 2011
Font Hill Wetland Park
Annette Allor

Sachem (male)

Male
July 16, 2011
Mount Pleasant
Bonnie Ott

Sachem (female)

Female
September 3, 2009
Western Regional Park
Bonnie Ott

Sachem (female)

Female
July 9, 2011
Mount Pleasant
Bonnie Ott

Sachem (female)

Female
September 4, 2009
Mount Pleasant
Scott Berglund

Sachem (female)

Female
September 4, 2009
Mount Pleasant
Scott Berglund

Hobomok Skipper (1–1.7") Uncommon: L-May to M-Jun Woods trails & edges Blackberry blossoms Panic grass, bluegrass
Sachem (female)

July 28, 2008
Marriottsville Road(PVSP)
June Tveekrem

Zabulon Skipper (1.3–1.7") Uncommon: L-May to Jun, Aug Woods trails & edges Leaf & branch tips Purpletop grass, lovegrass
Zabulon Skipper (male)

Male
June 3, 2011
Sykesville/River Road (PVSP)
Kevin Heffernan

Zabulon Skipper (male)

Male
August 17, 2006
Centennial Park
June Tveekrem

Zabulon Skipper (male)

Male
July 31, 2010
Mount Pleasant
Bonnie Ott

Zabulon Skipper (male)

Male
May 15, 2007
Centennial Park
June Tveekrem

Zabulon Skipper (male)

Male
July 3, 2011
Mount Pleasant
Bonnie Ott

Zabulon Skipper (male)

Male
July 31, 2010
Mount Pleasant
Bonnie Ott

Zabulon Skipper (female)

Female
August 5, 2010
Rockburn Branch Park
Bonnie Ott

Zabulon Skipper (female)

Female
August 5, 2010
Rockburn Branch Park
Bonnie Ott

Zabulon Skipper (female)

Female
August 5, 2010
Rockburn Branch Park
Bonnie Ott

Zabulon Skipper (male)

Male
April 12, 2011
Schooley Mill Park
Wesley Earp

Zabulon Skipper (male)

Male
June 7, 2011
MPEA
Bob Solem

Zabulon Skipper (male)

Male
June 7, 2011
MPEA
Bob Solem

Dun Skipper (1.1–1.4") Uncommon: L-Jun to Jul, Aug Marsh edges Common milkweed Sedges, grasses
Dun Skipper

Male
July 29, 2010
Columbia
Bonnie Ott

Dun Skipper

Female
Juny 5, 2008
Patuxent Branch Trail
Joanne Solem

 

Swallowtails

Pipevine Swallowtail (2.75–5") Rare: L-Jun & L-Jul Fields & marshes near woods Swamp milkweed Dutchman's pipe, Va. snakeroot
Pipevine Swallowtail

Male
August 30, 2010
Ellicott City
Kathy Litzinger

Pipevine Swallowtail

Male
August 30, 2010
Ellicott City
Kathy Litzinger

Pipevine Swallowtail (female)

Female
July 1, 2011
Manor Woods E.S.
Richard Orr

Zebra Swallowtail (2.5–4") Uncommon: L-Apr & E-Jul River edges Highbush blueberry Pawpaw
Zebra Swallowtail

May 8, 2005
Old Frederick Road (PVSP)
Kevin Heffernan

Zebra Swallowtail

Underside
July 16, 2010
Ellicott City
Kathy Litzinger

Zebra Swallowtail

June 23, 2007
Old Frederick Road (PVSP)
June Tveekrem

Zebra Swallowtail

July 11, 2010
Ellicott City
Kathy Litzinger

Zebra Swallowtail

July 16, 2010
Ellicott City
Kathy Litzinger

Black Swallowtail (3.25–4.25") Uncommon: May thru Aug Open, weedy fields & marshes Common milkweed Queen Anne's lace, parsley
Black Swallowtail (male)

Male
May 7, 2011
Sykesville/River Road (PVSP)
Bonnie Ott

Black Swallowtail (male)

Male
August 26, 2010
Ellicott City
Kathy Litzinger

Black Swallowtail (male)

Male
July 10, 2011
Mount Pleasant
Bonnie Ott

Black Swallowtail (female)

Female
October 17, 2011
Mount Pleasant
Annette Allor

Eastern Tiger Swallowtail (3.6–6.5") Common/abundant: E-May, Aug Fields & gardens Joe-Pye weed, thistles Tulip popular & wild cherry
Eastern Tiger Swallowtail (male)

Male
April 19, 2010
Wincopin Trails
Richard Orr

Eastern Tiger Swallowtail (male)

Male
April 29, 2009
Schooley Mill Park
Susan Earp

Eastern Tiger Swallowtail (male)

Male
April 30, 2009
Triadelphia Reservoir
June Tveekrem

Swallowtails puddling

September 22, 2011
Ellicott City
Kathy Litzinger

Eastern Tiger Swallowtails "puddling" to absorb minerals. (Any of the swallowtails may do this.)

Eastern Tiger Swallowtail (female)

Female
August 26, 2010
Ellicott City
Bonnie Ott

Eastern Tiger Swallowtail (dark form female)

Dark form female
July 29, 2011
Pigtail (Triadelphia Reservoir)
Richard Orr

Eastern Tiger Swallowtail (dark form female)

Dark form female
August 5, 2007
Centennial Park
June Tveekrem

Spicebush Swallowtail (3–4") Common: E-May to E-Sep Woods trails, edges & gardens Joe-Pye weed, thistles Spicebush & sassafras
Spicebush Swallowtail (male)

Male
July 22, 2010
Annapolis Rock (PRSP)
Scott Berglund

Spicebush Swallowtail (male)

Male
August 5, 2009
Rockburn Branch Park
Bonnie Ott

Spicebush Swallowtail (male)

Male
August 10, 2010
Mount Pleasant
Richard Orr

NEED Spicebush Swallowtail (FEMALE)

 

Whites & Sulphurs

Checkered White (1.5–2.5") Rare: L-Jun to L-Aug Trails in open weedy areas White clover Peppergrass, shepherd's purse
Checkered White

June 28, 2008
Long Corner (PRSP)
JB Churchill

Checkered White

June 28, 2008
Long Corner (PRSP)
JB Churchill

Cabbage White (1.75–2.25") Abundant: L-Mar thru Oct Fields & woods trails Canada thistle Crucifers (mustards & cabbage)
Cabbage White (male)

Male
August 29, 2010
Mount Pleasant
Bonnie Ott

Cabbage White (female)

Female
July 2, 2006
Centennial Park
June Tveekrem

Cabbage White (female)

Female
7/15/2010
Annapolis Rock (PRSP)
Scott Berglund

Cabbage White (female)

Female
May 31, 2007
Font Hill Wetland Park
June Tveekrem

Cabbage White (female)

Female
September 4, 2010
Centennial Manor
Bonnie Ott

Males have one black spot on the forewing, females two.

Falcate Orangetip (1.35–1.75") Uncommon: L-Apr to E-May Open woods Mustards Rock cress
Falcate Orange Tip (female)

Female
April 21, 2011
Zirn property (Patuxent River)
Bob Solem

NEED Falcate Orangetip (MALE)
Clouded Sulphur (1.5–2.75") Common: E-Apr thru E-Nov Open woods, clover fields Clover blossoms Clovers
Clouded Sulphur (male)

Male
September 19, 2010
Ellicott City
Bonnie Ott

Clouded Sulphur (male)

Male
July 2, 2010
Larriland Farm
Richard Orr

Clouded Sulphur (white form female)

White form female
September 19, 2009
Rockburn Branch Park
Bonnie Ott

Sulphurs puddling

September 22, 2011
Kathy Litzinger
Centennial Park

Clouded Sulphurs "puddling" to absorb minerals. (Any of the sulphurs may do this.)

Orange Sulphur (1.3–2.75") Common/abundant: L-Apr thru E-Nov Open fields, alfalfa fields Red clover Clovers & vetches
Orange Sulphur (male)

Male
September 8, 2006
Centennial Park
June Tveekrem

Orange Sulphur (male)

Male
September 15, 2006
Mount Pleasant
Scott Berglund

Orange Sulphur (female)

Female
September 15, 2009
Mount Pleasant
Scott Berglund

Little Yellow (1.25–1.75") Uncommon/rare: L-Aug to E-Sep Sandy fields & hillsides Sennas, partridge pea Sennas
Little Yellow

July 19, 2003
MPEA
Cheryl Farfaras

Little Yellow

September 23, 2010
Columbia Gateway
Jim Wilkinson

Sleepy Orange (1.3–2.25") Rare: E-Sep Field & river edges Wild senna Wild senna
Little Yellow

October 4, 2011
Elkhorn Garden Plots
Bob Solem

 

Gossamer-wings

American Copper (0.75–1.4") Uncommon: Jun thru Aug Weedy, grassy fields White clover Sheep sorrel
American Copper

September 4, 2011
UMDCF
Bonnie Ott

American Copper

September 24, 2009
Mount Pleasant
Bonnie Ott

American Copper

June 12, 2009
Mount Pleasant
Richard Orr

American Copper

September 24, 2009
Mount Pleasant
Bonnie Ott

American Copper

August 30, 2008
Woodstock Road (PVSP)
Wesley Earp

Banded Hairstreak (1–1.5") Uncommon: M to L-Jun Woods trails & edges Indian hemp, milkweed Various oaks
Banded Hairstreak

June 15, 2009
Wincopin Trail (Savage)
Bob Solem

Red-Banded Hairstreak (0.85–1.25") Common: L-May & Aug Woods edges, brushy areas Leaf tips, Indian hemp Fallen leaves of sumacs & oaks
Red-Banded Hairstreak

June 13, 2008
MPEA
Cheryl Farfaras

Red-Banded Hairstreak

July 10, 2011
Rockburn Branch Park
Bonnie Ott

Red-Banded Hairstreak

July 29, 2011
Pigtail (Triadelphia Reservoir)
Richard Orr

Red-Banded Hairstreak

August 3, 2006
Swansfield (Columbia)
June Tveekrem

Red-Banded Hairstreak

August 23, 2010
Rockburn Branch Park
Bonnie Ott

Red-Banded Hairstreak (male)

Male
October 23, 201
Centennial Park
Annette Allor

Males of most butterfly species emerge from chrysalises several days before the females and will show some wear like the Centennial specimen, whereas the females will be fresh. Thus, the Centennial specimen is probably a male. Since the Font Hill specimen does not have the iridescent colors and is obviously fresher, it is probably a female.

Red-Banded Hairstreak (female)

Female
October 23, 2011
Font Hill Wetland Park
Annette Allor

Brown Elfin (0.8–1.1") Rare: L-Apr Woods trails & edges Laurel leaves Huckleberry
Brown Elfin

May 1, 2001
Bon Secours
Jo Solem

White M Hairstreak (1.25–1.7") Rare: L-Apr, Aug-Sep Woods clearings & edges Lance-leaved goldenrod Oaks
White M Hairstreak

August 28, 2011
Centennial Park
Danielle Allor

White N Hairstreak

August 29, 2011
Ellicott City
Kathy Litzinger

White M Hairstreak

April 25, 2009
Daniels (PVSP)
Dennis Coskren

Gray Hairstreak (0.85–1.4") Common: L-Apr to E-Oct Open fields & roadsides White clover, trefoils Tick trefoil, vetch, clovers
Gray Hairstreak

July 9, 2010
Ellicott City
Bonnie Ott

Banded Hairstreak

July 15, 2010
Ellicott City
Kathy Litzinger

Gray Hairstreak

August 16, 2010
Ellicott City
Bonnie Ott

Gray Hairstreak

September 24, 2011
Font Hill Wetland Park
Annette Allor

Gray Hairstreak

September 4, 2011
Ellicott City
Bonnie Ott

Gray Hairstreak

October 4, 2008
Mount Pleasant
Richard Orr

Gray Hairstreak

October 9, 2011
Centennial Park
Annette Allor

Eastern Tailed-Blue (0.8–1.2") Common/abundant: L-Apr to E-Oct Open fields & roadsides White clover, trefoils Beggar's-ticks, clovers
Eastern Tailed-Blue (male)

Male
April 11, 2006
Centennial Park
June Tveekrem

Eastern Tailed-Blue (male)

Male
August 30, 2008
Woodstock
Wes Earp

Eastern Tailed-Blue (male)

Male
August 26, 2010
Ellicott City
Kathy Litzinger

Eastern Tailed-Blue (male)

Male
September 13, 2010
Howard Chapel Road (PRSP)
Wesley Earp

Eastern Tailed-Blue (male)

Male
September 22, 2011
Ellicott City
Kathy Litzinger

Eastern Tailed-Blue (male)

Female
October 3, 2009
Ellicott City
Bonnie Ott

Eastern Tailed-Blue (male)

Female
September 8, 2006
Centennial Park
June Tveekrem

Eastern Tailed-Blue (male)

Female
September 8, 2006
Centennial Park
June Tveekrem

Eastern Tailed-Blue (male)

M & F
July 12, 2009
Mount Pleasant
Bonnie Ott

Spring Azure (0.8–1.4") Common: E-Apr to E-May Woods trails & edges Mud puddles Dogwood, wild cherry
Spring Azure

April 10, 2011
Rockburn Branch Park
Bonnie Ott

Single brood, but long individual adult emergence period

Summer Azure (0.9–1.2") Common: L-May thru E-Oct Woods trails & edges Mud puddles Viburnum, wingstem
Summer Azure

June 25, 2011
Avalon (PVSP)
Richard Orr

Summer Azure

July 4, 2006
Font Hill Wetland Park
June Tveekrem

Summer Azure

July 15, 2010
Ellicott City
Kathy Litzinger

Summer Azure

September 1, 2001
Howard Chapel Road (PRSP)
Wes Earp

Multiple broods

 

Brushfoots

American Snout (1.4–2") Rare: E-Jul Roadsides, woods edges Mud puddles Hackberry
American Snout

September 20, 2009
Mount Pleasant
Bonnie Ott

Variegated Fritillary (1.75–3.2") Uncommon: Aug to M-Oct Dry fields & gardens Red clover, pansies Violets & pansies
Variegated Fritillary

June 3, 2011
Sykesville/River Road (PVSP)
Kevin Heffernan

Variegated Fritillary

August 19, 2010
Centennial Manor
Bonnie Ott

Variegated Fritillary

October 9, 2011
Centenniall Park
Annette Allor

Variegated Fritillary

May 28, 2006
Brown's Bridge Road (at Rocky Gorge Reservoir)
June Tveekrem

Variegated Fritillary

July 19, 2008
MPEA
Cheryl Farfaras

Variegated Fritillary

August 20, 2010
Mount Pleasant
Kathy Litzinger

Great Spangled Fritillary (2.5–4") Common: M-Jun to E-Sep Fields & gardens Milkweeds, thistles Yellow & blue violets
Great Spangled Fritillary

May 29, 2010
Ellicott City
Kathy Litzinger

Great Spangled Fritillary

July 15, 2010
Annapolis Rock (PRSP)
Scott Berglund

Great Spangled Fritillary

June 17, 2006
Marriottsville Road (PVSP)
June Tveekrem

Great Spangled Fritillary

August 12, 2007
Ellicott City
Kathy Litzinger

Meadow Fritillary (1.3–2") Uncommon: Apr, Jun & E-Sep Grassy wet meadows Indian hemp, spearmint Wooly blue violets
Meadow Fritillary

July 15, 2010
Poplar Springs Park
Sue Muller

Male, based on the shape of the abdominal tip.

Silvery Checkerspot (1.4–2") Rare: E-Jun to Aug Wood trails along rivers Sunflower Wingstem & wild sunflower
71Silvery Checkerspot

June 26, 2009
Long Corner (PVSP)
Robert Schaefer

71Silvery Checkerspot

Five still shots taken from a video by Robert Schaefer at his home

71Silvery Checkerspot

View the video

71Silvery Checkerspot 71Silvery Checkerspot
Pearl Crescent 1.25–1.75" Abundant: E-May to E-Nov Fields & gardens Butterflyweed, milkweed Various asters
Pearl Crescent

Male
April 11, 2011
Patuxent River
Wesley Earp

Pearl Crescent

September 4, 2009
Mount Pleasant
Scott Berglund

Pearl Crescent

September 2, 2009
West Friendship Park
Bonnie Ott

Pearl Crescent

Ocotober 8, 2010
Mount Pleasant
Scott Berglund

Pearl Crescent

October 8, 2011
Centennial Park
Annette Allor

Pearl Crescents

September 22, 2011
Ellicott City
Kathy Litzinger

Pearl Crescents

March 20, 2006
Shadow Lane (Columbia)
June Tveekrem

Baltimore Checkerspot (1.75–2.75") Rare: M-Jun Interiors of marshes Grassblades, daisies Turtlehead
Baltimore Checkerspot

June 29, 2009
Marriottsville Road (PVSP)
Bill Sherman

Question Mark (2.25–3") Uncommon: Apr, Jun & E-Sep Woods, roads Rotting fruit & sap Nettles, elm, hackberry
Question Mark

July 19, 2003
MPEA
Cheryl Farfaras

Question Mark

October 6, 2010
MPEA
Cheryl Farfaras

Question Mark

October 7, 2010
MPEA
Scott Berglund

Notice smoother wing margin and elongate tail (compared with Eastern Comma).

Eastern Comma (1.75–2.5") Uncommon: Apr, Jun & E-Sep Woods, roads Rotting fruit & sap Nettles, elm, hops
Eastern Comma

Summer form
June 15, 2011
Henryton (PVSP)
Jo Solem

Eastern Comma

Summer form
June 15, 2011
July 3, 2011
Mount Pleasant
Bonnie Ott

Eastern Comma

October 9, 2009
Rockburn Branch Park
Bonnie Ott

Eastern Comma

September 28, 2011
Ellicott City
Kathy Litzinger

Eastern Comma

October 9, 2009
Rockburn Branch Park
Bonnie Ott

Eastern Comma

October 4, 2009
Western Regional Park
June Tveekrem

Mourning Cloak (2.25–4") Uncommon: E-Apr, Jun & Sep Woods, roads Rotting fruit & sap Willow, elm, cottonwood
Mourning Cloak

April 30, 2007
MPEA
Scott Berglund

Mourning Cloak

May 27, 2010
Centennial Manor
Bonnie Ott

American Lady (1.75–2.7") UncommonL-Apr thru Sep Weedy fields Milkweed, Indian hemp Everlasting & pussytoes
American Lady

July 26, 2007
Ellicott City
Kathy Litzinger

American Lady

October 17, 2011
Mount Pleasant
Annette Allor

American Lady

July 26, 2007
Ellicott City
Kathy Litzinger

American Lady

August 20, 2010
Ellicott City
Bonnie Ott

American Lady

August 16, 2008
Ellicott City
Kathy Litzinger

American Lady

August 26, 2010
Ellicott City
Kathy Litzinger

Painted Lady (2–2.9") Uncommon: L-Apr, Jun to Sep Weedy fields Thistles, milkweed Thistles, mallows
Painted Lady

August 21, 2010
Ellicott City
Kathy Litzinger

Painted Lady

Jun 6, 2010
Ellicott City
Kathy Litzinger

Painted Lady

September 20, 2009
Mount Pleasant
Bonnie Ott

Painted Lady

September 14, 2009
Columbia
Bonnie Ott

Red Admiral (1.75–3") Uncommon: L-May to E-Sep Woods trails ;& edges Joe-Pye weed Nettles
Red Admiral

May 15, 2010
Sykesville/River Road (PVSP)
Bonnie Ott

Red Admiral

July 17, 2007
Ellicott City
Kathy Litzinger

Red Admiral

July 29, 2010
Columbia
Bonnie Ott

Red Admiral

August 20, 2010
Ellicott City
Bonnie Ott

Common Buckeye (1.6–2.75") Common: L-May thru E-Oct Dry weedy fields Lance-leaved goldenrod Plantain, foxglove
Common Buckeye

August 23, 2006
Centennial Park
June Tveekrem

Common Buckeye

September 19, 2010
Meadowbrook Park
Bonnie Ott

Common Buckeye

October 7, 2011
Font Hill Wetland Park
Annette Allor

Common Buckeye

F & M
Septmber 20, 2011
Ellicott City
Kathy Litzinger

Females are usually larger; in late summer they are darker on the underside than males.

Common Buckeye

July 26, 2010
Annapolis Rock (PRSP)
Scott Berglund

Common Buckeye

May 28, 2011
UMDCF
Nancy Magnusson

Common Buckeye

August 16, 2010
Ellicott City
Bonnie Ott

Common Buckeye

September 21, 2007
Centennial Park
June Tveekrem

Common Buckeye

Late season female
September 22, 2011
Ellicott City
Kathy Litzinger

Red-spotted Purple (2.25–4") Uncommon: L-May to M-Sep Wet woods roads Wet spots, rotting fruit Wild cherry, poplar, aspen
Red-spotted Purple

May 7, 2010
MPEA
Scott Berglund

Red-spotted Purple

July 20, 2011
Daniels Road (PVSP)
Richard Orr

Red-spotted Purple

August 26, 2011
Pigtail (Triadelphia Reservoir)
Richard Orr

Red-spotted Purple

August 9, 2004
Meadowbrook Park
Wesley Earp

Red-spotted Purple

August 23, 2006
Centennial Park
June Tveekrem

Viceroy (2.5–3.4") Uncommon: L-May to M-Sep Pond & stream edges Willow leaves Willows & poplars
Viceroy

May 21, 2011
Schooley Mill Park
Nancy Magnusson

Viceroy

July 17, 2011
Western Regional Park
Bonnie Ott

Viceroy

September 6, 2006
Meadowbrook Park
Richard Orr

Viceroy

September 15, 2009
Columbia
Bonnie Ott

Viceroy

July 17, 2011
Western Regional Park
Bonnie Ott

Viceroy

August 30, 2008
Woodstock (PVSP)
Susan Earp

Hackberry Emperor (1.3–2.5") Rare: M-Jun & M-Aug Woods trails & edges Wet spots Hackberry
Hackberry Emperor

July 15, 2008
Centennial Park
Sue Muller

 

Satyrs

Northern Pearly-eye (1.75–2.7") Rare: E-Jun & M-Aug Damp, grassy woods trails Mud puddles Bottlebrush & plume grass
Northern Pearly-eye

June 9, 2011
Rockburn Branch Park
Kathy Litzinger

Northern Pearly-eye

July 10, 2010
Henryton (PVSP)
Richard Orr

Northern Pearly-eye

August 23, 2010
Rockburn Branch Park
Bonnie Ott

Northern Pearly-eye

August 28, 2011
Patapsco Valley State Park
Sue Muller

Northern Pearly-eye

September 3, 2009
Houchen's, Patapsco River
Bonnie Ott

Northern Pearly-eye

September 17, 2008
David Force NRA
Scott Berglund

Appalachian Brown (1.8–2.25") Common: Jun & Aug Interiors of bushy marshes Alder leaves Sedges
Appalachian Brown

July 20, 2010
Daniels (PVSP)
Richard Orr

Appalachian Brown

July 5, 2009
Columbia
June Tveekrem

Little Wood-Satyr (1.5–1.9") Common: L-May thru Jun Brushy woods edges Low shiny leaves Orchard grass
Little Wood-Satyr

June 3, 2011
Sykesville/River Road (PVSP)
Kevin Heffernan

Little Wood-Satyr

May 29, 2011
Sykesville/River Road (PVSP)
Bonnie Ott

Little Wood-Satyr

June 1, 2007
High Ridge Park
Susan Earp

Common Wood-Nymph (1.75–3") Uncommon: Jul & Aug Dry grassy fields near woods Tree trunks Grasses, including purpletop
Common Wood-Nymph

August 28, 2009
Rockburn Branch Park
Bonnie Ott

Common Wood-Nymph

July 16, 2008
North Laurel Park
Wesley Earp

 

Milkweed Butterflies

Monarch (3.3–4.9") Common: May to M-Oct Open meadows Milkweed & goldenrods Milkweed
Monarch (male)

Male
September 12, 2008
Columbia
Cheryl Farfaras

Monarch (female)

Female
August 23, 2009
Columbia
Cheryl Farfaras

Monarch

August 26, 2010
Mount Pleasant
Bonnie Ott

Monarch

August 6, 2010
Ellicott City
Bonnie Ott

Monarch

August 23, 2010
Rockburn Branch Park
Bonnie Ott

Monarch

August 27, 2010
Rockburn Branch Park
Bonnie Ott

Photos Still Needed

To download a PDF copy of this list of photos needed, click HERE.

We welcome submissions of butterfly photos taken in Howard County.

Email submissions (originals, unmodified except possible cropping) as attachment to email to Howard County Bird Club. Please include your name, date of photo, and location.
(More information and views of these species are available by clicking on the species name.)

Long-tailed Skipper (1.75–2.3") Rare: Aug-Sep Gardens, open roadsides Variety of flowers Beans, legume vines
Hoary Edge (1.75–1.9") Rare: M-Jun to E-Jul Fields & forest edges Red clover, milkweed Tick trefoils
Southern Cloudywing (1.3–1.8") Uncommon: L-May to M-Aug Dry fields at woods edges Indian hemp (dogbane) Tick trefoils, bush clover
Northern Cloudywing (1.25–1.8") Uncommon: M-Jun to E-Jul Dry fields at woods edges Indian hemp (dogbane) Tick trefoils, bush clover
Hayhurst's Scallopwing (1–1.25") Rare: L-Jul to M-Aug Woods edges along streams Burdock Lamb's quarters
Dreamy Duskywing (1.1–1.5") Uncommon: E-May to E-Jun Dry fields & woods trails Mud puddles Willows, poplars, aspens
Sleepy Duskywing (1.25–1.75") Uncommon: M-Apr to E-May Woods trails & edges Mud puddles Scrub oak

Common Sootywing (1–1.3")

Uncommon: May to Aug Gardens & fields White sweet clover Lamb's quarters
Swarthy Skipper (1–1.2") Uncommon: Jun, Aug & Sep Dry fields with broomsedge Low grassblades Little bluestem beardgrass
European Skipper (1–1.2") Uncommon: M to L-Jun Fields with tall grass Purple vetch Timothy grass
Northern Broken-Dash (1–1.25") Uncommon: M-Jun to E-Aug Weedy fields Indian hemp, milkweed Panic grasses
Mulberry Wing (1.1–1.5") Uncommon: E to M-Jul Interiors of sedge marshes Swamp milkweed Tussock sedge
Dusted Skipper (1.25–1.7") Rare: L-May Dry fields with beardgrass Low grassblades Little bluestem beardgrass
Ocola Skipper (1.3–1.7") Rare: L-Aug, Sep Wet meadows New York ironweed Grasses
Cloudless Sulphur (2.25–3.1") Rare: L Aug - M Sep Open fields Senna, partridge pea Sennas
Harvester (1.1–1.25") Rare: Jun & Aug Wet, bushy woods trails Mud puddles near alders Larvae feed on wooly aphids
Bronze Copper (1.25–1.9") Rare: L May - & M-Aug Marshes & wet meadows Indian hemp (dogbane) Water dock & curled dock
Coral Hairstreak (1–1.5") Rare: L-Jun Old fields, powerline cuts Butterflyweed Wild cherry, chokecherry
Striped Hairstreak (1–1.5") Rare: L-Jun Swamp & marsh edges Indian hemp, N.J. tea Blueberry, hawthorn
Juniper Hairstreak (1–1.25") Rare: L-Apr & M-Jul Mature red cedar groves Red cedar treetops Red cedar
Eastern Pine Elfin (1–1.25") Rare: L-Apr to E-Jun Open scrub pine groves Pussytoes Various hard pines

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