''Erynnis martialis'', the mottled duskywing, is a

butterfly Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group comprise ...

of the family Hesperiidae. It is found in most of the eastern United States and in southern

Ontario Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central C ...

, and southeastern

Manitoba , image_map = Manitoba in Canada 2.svg , map_alt = Map showing Manitoba's location in the centre of Southern Canada , Label_map = yes , coordinates = , capital = Winn ...

.COSEWIC. 2012
COSEWIC Assessment and Status Report on the Mottled Duskywing ''Erynnis martialis'' in Canada
Committee on the Status of Endangered Wildlife in Canada. Ottawa. xiv+35 pp. Consulted on February 13th, 2018. It is listed as a species of special concern and believed

extirpated Local extinction, also known as extirpation, refers to a species (or other taxon) of plant or animal that ceases to exist in a chosen geographic area of study, though it still exists elsewhere. Local extinctions are contrasted with global extinct ...

in the US state of

Connecticut Connecticut () is the southernmost state in the New England region of the Northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, New York to the west, and Long Island Sound to the south. Its capita ...

. The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan o ...

is 25–29 mm. There can be two generations from mid-May to late August.Mottled Duskywing
Butterflies of Canada The larvae feed on wild lilacs including New Jersey tea (''

Ceanothus americanus ''Ceanothus americanus'' is a species of ''Ceanothus'' shrub native to North America. Common names include New Jersey tea, Jersey tea ceanothus, variations of red root (red-root; redroot), mountain sweet (mountain-sweet; mountainsweet), and wild ...

'') and redroot (''

Ceanothus herbaceus ''Ceanothus herbaceus'', also known as Jersey tea, is a species of shrub in the family Rhamnaceae and is similar to ''Ceanothus americanus'' and ''Ceanothus sanguineus''. It is a perennial shrub which is native to North America. Synonyms As fo ...

'') in the buckthorn family ( Rhamnaceae). Adults feed on nectar from flowers of Bush houstonia, Gromwell, '' Verbena stricta'' and other plants.

References

External links

Mottled Duskywing
Nearctica
Mottled Duskywing
BugGuide
Mottled Duskywing
Butterflies and Moths of North America Erynnis Butterflies of North America Butterflies described in 1869 Taxa named by Samuel Hubbard Scudder {{Pyrginae-stub