''Sthenopis argenteomaculatus'', the silver-spotted ghost moth, is a species of

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of w ...

of the family

Hepialidae The Hepialidae are a family of insects in the lepidopteran order. Moths of this family are often referred to as swift moths or ghost moths. Taxonomy and systematics The Hepialidae constitute by far the most diverse group of the infraorder Exopo ...

. It was described by

Thaddeus William Harris Thaddeus William Harris (November 12, 1795 – January 16, 1856) was an American entomologist and librarian. His focus on insect life cycles and interactions with plants was influential in broadening American entomological studies beyond a narrow ...

in 1841, and is known in North America from

Nova Scotia Nova Scotia ( ; ; ) is one of the thirteen provinces and territories of Canada. It is one of the three Maritime provinces and one of the four Atlantic provinces. Nova Scotia is Latin for "New Scotland". Most of the population are native Eng ...

North Carolina North Carolina () is a state in the Southeastern region of the United States. The state is the 28th largest and 9th-most populous of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, Georgia and So ...

and west to

Minnesota Minnesota () is a state in the upper midwestern region of the United States. It is the 12th largest U.S. state in area and the 22nd most populous, with over 5.75 million residents. Minnesota is home to western prairies, now given over to ...

. 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 of ...

is about . The forewings are gray to tan, crossed by irregular dark bands. Adults are on wing from June to August. The wing venation was described as primitive by

John Henry Comstock John Henry Comstock (February 24, 1849 – March 20, 1931) was an eminent researcher in entomology and arachnology and a leading educator. His work provided the basis for classification of butterflies, moths, and scale insects. Early life and ...

in that the costa of both fore and hind wing retain the primitive 4 branches while in most other Lepidoptera the hind wing costa are fused into one vein. Comstock often used this silver-spotted ghost moth in his publications on Lepidopteran wings and their venation with at least one case of it being reproduced on his title page (e.g. Frontice). The figures of the Hepialid moths and their wing venation illustrating the Comstock publications on wings were from his sometimes co-author

Anna Botsford Comstock Anna Botsford Comstock (September 1, 1854 – August 24, 1930) was an acclaimed author, illustrator, and educator of natural studies. The first female professor at Cornell University, her over 900-page work, ''The Handbook of Nature Study'' (1911 ...

. Food plants for this species include ''

Alnus Alders are trees comprising the genus ''Alnus'' in the birch family Betulaceae. The genus comprises about 35 species of monoecious trees and shrubs, a few reaching a large size, distributed throughout the north temperate zone with a few spec ...

'', ''

Betula A birch is a thin-leaved deciduous hardwood tree of the genus ''Betula'' (), in the family Betulaceae, which also includes alders, hazels, and hornbeams. It is closely related to the beech-oak family Fagaceae. The genus ''Betula'' contains 3 ...

'', and ''

Salix Willows, also called sallows and osiers, from the genus ''Salix'', comprise around 400 speciesMabberley, D.J. 1997. The Plant Book, Cambridge University Press #2: Cambridge. of typically deciduous trees and shrubs, found primarily on moist so ...

''. They bore in roots of their host plant that are partially submerged in water. The life cycle takes two years.''Moths of Maryland''
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References

Moths described in 1842 Hepialidae {{Hepialidae-stub