A Sketchy Summary of the Butterflies of Tweed and south-central Hastings County, Ontario

With today's temperatures hovering around –22°C (–34°C with the wind chill factored in) a topic that brings back memories of the warm, sunny days of summer seems in order.

Like the list of Dragonflies and Damselflies posted late last autumn, this is not intended to be a comprehensive summary, it's just my personal life list. To get an idea of the big picture, visit the Toronto Entomologists' Association's Ontario Butterfly Atlas.

True Butterflies ... Superfamily Papilionoidea

Swallowtails ... Family Papilionidae

(1) Canadian Tiger Swallowtail (Papilio canadensis)
June 14, 2009
Tweed – north shore of Stoco Lake
44.47389 ... -77.30722

(2) Giant Swallowtail (Papilio cresphontes)
Summer 2006 – about 1½ km west of Thomasburg
Summer 2008 – Tweed, near Spring St., this is now a common butterfly, often encountered east of town near Collins Point
44.47845 ... -77.30371

(3) Black Swallowtail (Papilio polyxenes)
May 06, 2012
Actinolite – Price Conservation Area
44.54917 ... -77.32528

(4) Spicebush Swallowtail (Papilio troilus)
July 16, 2012
Tweed (roadkill)
44.47472 ... -77.31028

Whites and Sulphurs ... Family Pieridae

(5) Cabbage White (Pieris rapae)
August 19, 2008
Tweed – Heritage Center Garden
44.47472 ... -77.31028

(6) Mustard White (Pieris napi)
April 19, 2012
Along the trans-Canada Trail, near a dry field west of Tweed
44.46333 ... -77.32890

(7) Orange Sulphur (Colias eurytheme)
July 10, 2011
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(8) Clouded Sulphur (Colias philodice)
September 01, 2008
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(9) Dainty Sulphur (Nathalis iole)
September 19, 2013
East of Tweed – near the intersection of the trans-Canada Trail and Alexander St.
44.47874 ... -77.30335

Gossamer-wings ... Family Lycaenidae

(10) Juniper Hairstreak (Callophrys gryneus gryneus)
May 18, 2013
West of Tweed – frequenting a copse of Eastern Red Cedar
44.46333 ... -77.32890

(11) Henry’s Elfin (Callophrys henrici)
April 20, 2012
East of Tweed – the intersection of the trans-Canada Trail and Lajoie Rd.
44.48240 ... -77.29663

(12) Eastern Pine Elfin (Callophrys niphon)
May 12, 2011
East of Tweed – blueberry scrub along the trans-Canada Trail
44.48152 ... -77.29776

(13) Harvester (Feniseca tarquinius)
July 30, 2012
East of Tweed – along the Moira River near Collins Point
44.47845 ... -77.30371

(14) Spring Azure (Celastrina argiolus)
May 12, 2011
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(15) Summer Azure (Celastrina neglecta)?
June 30, 2012
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(16) Eastern Tailed Blue (Everes comyntas)
July 24, 2010
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(17) Silvery Blue (Glaucopsyche lygdamus)
June 12, 2009
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(18) Bronze Copper (Lycaena hyllus)
September 11, 2008
Tweed – north shore of Stoco Lake
44.47389 ... -77.30722

(19) American Copper (Lycaena phlaeas)
September 03, 2011
A dry field west of Tweed
44.46333 ... -77.32890

(20) Gray Hairstreak (Strymon melinus)
Encountered June 2010
Photo below acquired on September 03, 2011
East of Tweed – near the intersection of the trans-Canada Trail and Alexander St.
44.47874 ... -77.30335

(21) Acadian Hairstreak (Satyrium acadicum)
June 21, 2012
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(22) Banded Hairstreak (Satyrium calanus)
June 28, 2010
East of Tweed – along the Moira River near Collins Point
44.47845 ... -77.30371

(23) Hickory Hairstreak (Satyrium caryaevorum)
June 28, 2012
East of Tweed – along the Moira River near Collins Point
44.47845 ... -77.30371

(24) Striped Hairstreak (Satyrium liparops)
July 04, 2012
East of Tweed – the intersection of the trans-Canada Trail and Lajoie Rd.
44.48240 ... -77.29663

Brush-foots ... Family Nymphalidae

(25) Northern Crescent (Phyciodes cocyta)
September 07, 2009
Tweed – Moira River, near the footbridge and the dam
44.47472 ... -77.31028

(26) Pearl Crescent (Phyciodes tharos)
July 24, 2011
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(27) Harris’ Checkerspot (Chlosyne harrisii)
June 09, 2010
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(28) Baltimore Checkerspot (Euphydryas phaeton)
June 08, 2010
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(29) Common Buckeye (Junonia coenia)
September 25, 2011
Tweed – near the intersection of Lakeview Lane and the trans-Canada Trail
44.48000 ... -77.30389
Uncommon, but sighted every year since 2011

(30) Mourning Cloak (Nymphalis antiopa)
June 15, 2010
Tweed – north shore of Stoco Lake
44.47389 ... -77.30722

(31) Milbert’s Tortoiseshell (Nymphalis milberti)
August 05, 2009
Tweed – Heritage Center Garden
44.47472 ... -77.31028

(32) Compton Tortoiseshell (Nymphalis vau-album)
March 20, 2012
East of Tweed along the trans-Canada Trail
44.49139 ... -77.28556

(33) Eastern Comma (Polygonia comma)
March 20, 2012
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(34) Gray Comma (Polygonia progne)
July 01, 2012
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(35) Question Mark (Polygonia interrogationis)
May 05, 2012
East of Tweed along the trans-Canada Trail
44.48152 ... -77.29776

(36) Red Admiral (Vanessa atalanta)
June 25, 2010
Tweed – north shore of Stoco Lake
44.47389 ... -77.30722

(37) Painted Lady (Vanessa cardui)
May 11, 2012
Tweed – reared from caterpillars
44.47472 ... -77.31028

(38) American Lady (Vanessa virginiensis)
May 06, 2012
Stoco Fen, east of Tweed
44.46417 ... -77.23222

(39) Hackberry Emperor (Asterocampa celtis)
First week of Novemer, 1996 – along Highway #37, north of Tweed
44.51981 ... -77.32621
Sighted east of Tweed every summer since June 20, 2010 – near Collins Point, and along the trans-Canada Trail to Lajoie Rd., near its host plant, Hackberry

(40) Monarch (Danaus plexippus)
August 20, 2008
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(41) Meadow Fritillary (Boloria bellona)
July 15, 2013
Tweed
44.47472 ... -77.31028

(42) Silver-bordered Fritillary (Boloria selene)
June 16, 2011
Stoco Fen, east of Tweed
44.46417 ... -77.23222

(43) Great Spangled Fritillary (Speyeria cybele)
July 01, 2011
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(44) Aphrodite Fritillary (Speyeria aphrodite)?
July 10, 2011
Drag Lake, about 7¼ km west of Tweed
44.44306 ... -77.39083

(45) American Snout (Libytheana carinenta)
June 27, 2012
East of Tweed – along the Moira River near Collins Point
44.47694 ... -77.30194
Three other encounters in 2012, west of Tweed along the trans-Canada Trail to Lajoie Rd. The host plant, Hackberry, occurs at the locations of all of the sightings.

(46) Viceroy (Limenitis archippus)
August 10, 2008
Tweed – north shore of Stoco Lake
44.47389 ... -77.30722

(47a) White Admiral (Limenitis arthemis arthemis)
June 16, 2012
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(47b) Banded Purple (Limenitis arthemis proserpina)
May 31, 2010
East of Tweed – the intersection of the trans-Canada Trail and Lajoie Rd.
44.48240 ... -77.29663

(48) Common Wood Nymph (Cercyonis pegala nephele)
July 18, 2010
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(49) Common Ringlet (Coenonympha tullia)
August 16, 2008
East of Tweed – along the Moira River near Collins Point
44.47694 ... -77.30194

(50) Northern Pearly-eye (Enodia anthedon)
June 27, 2010
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(51) Little Wood-satyr (Megisto cymela)
June 10, 2010
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(52) Eyed Brown (Satyrodes eurydice)
June 27, 2012
Tweed – near the intersection of Lakeview Lane and the trans-Canada Trail
44.48000 ... -77.30389

(53) Appalachian Brown (Satyrodes appalachia)?
June 23, 2012
Tweed (roadkill)
44.47472 ... -77.31028

My catalogue of local Skippers is even shorter than the Butterfly list. I'm not that familiar with this group of leps and many of them – for example, Erynnis spp. – look alike to me.

Skippers ... Superfamily Hesperioidea

(54) Delaware Skipper (Anatrytone logan)
June 09, 2011
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(55) Least Skipper (Ancyloxypha numitor)
June 09, 2012
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(56) Arctic Skipper (Carterocephalus palaemon)
June 09, 2010
Stoco Fen, east of Tweed
44.46417 ... -77.23222

(57) Silver-spotted Skipper (Epargyreus clarus)
June 06, 2011
Tweed – north shore of Stoco Lake
44.47389 ... -77.30722
Also common east of Tweed, near Collins Point

(58) Dreamy Duskywing (Erynnis icelus)
May 19, 2011
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(59) Juvenal’s Duskywing (Erynnis juvenalis)
May 17, 2012
Trans-Canada Trail, west of Tweed
44.45917 ... -77.34250

(60) Dun Skipper (Euphyes vestris)
August 16, 2008
Tweed – Heritage Center Garden
44.47472 ... -77.31028

(61) Leonard’s Skipper (Hesperia leonardus)
August 05, 2010
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(62) Hobomok Skipper (Poanes hobomok)
June 03, 2010
Tweed – garden at 417 Metcalf St.
44.79261 ... -77.31582

(63) Long Dash (Polites mystic)?
May 30, 2012
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(64) Tawny-edged Skipper (Polites themistocles)
September 01, 2011
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

(65) Little Glassywing (Pompeius verna)
June 05, 2012
Trans-Canada Trail, west of Tweed
44.45917 ... -77.34250

(66) Northern Cloudywing (Thorybes pylades)
May 26, 2012
Trans-Canada Trail, west of Tweed
44.45917 ... -77.34250

(67) European Skipper (Thymelicus lineola)
June 20, 2010
Trans-Canada Trail, near a marsh about ½ km west of Tweed
44.46889 ... -77.31528

Silver-spotted and other Skippers

Skippers form their own superfamily, Hesperiidae, within the order Lepidoptera which also includes butterflies and moths. Although generally small skippers have a more robust build than true butterflies and their clubbed antennae end in a hook.

Most of our local skipper species have wingspans of about 25 to 30 mm. The Silver-spotted Skipper (Epargyreus clarus) is an exception ... with semi-transparent gold spots on the forewings and silver bands on the hindwings, and a wingspan of about 60 to 65 mm, it stands out from the crowd.

Here's my finger in the background to impart a sense of scale.

Some skippers are uniquely patterned and easy to identify in the field.

Arctic Skipper (Carterocephalus palaemon)

Hobomok Skipper (Poanes hobomok)

Leonard's Skipper (Hesperia leonardus)

European Skipper (Thymelicus lineola)

Other skippers can be challenging to sort out. This Duskywing did me a favour and landed on my hand, making it possible to take fairly detailed shots from a variety of angles (note the clear spots in the backlit view of the undersides of the forewings).

Is this a Dreamy Duskywing? A Columbine Duskywing? I can't seem to narrow this one down past the genus level, so until I gain more experience I'm going to call it Erynnis sp., and let it go at that.

Close encounter with a Chipmunk (Tamias striatus), and some other miscellaneous local fauna

I think this little guy (young, and quite tame) climbed up the metal pole and had no idea how to get down again.

Question Mark (Polygonia interrogationis)

The shape of the silver mark on the hind underwing distinguishes this butterfly from the closely related and very similar Comma (Polygonia comma ... not illustrated).

Plain Ringlet or Common Ringlet (Coenonympha tullia)

Green Stink Bug (Chlorochoroa sp.)

An unidentified Skipper (family Hesperiidae)

The proverbial "fly on the wall" ... a Robber Fly (family Asilidae), an excellent example of convergent evolution. These predators rely on speed to catch their dinner. Their streamlined shape, long wings, large eyes and hairy legs resemble those of the unrelated dragonflies. Some Robber Flies mimic Bumblebees, I'll try to get a picture of one of these flies sometime in the future.