Main Introduction Page Electronic Reference Library Know-how Glossary of acronyms and other terms used on this website A Catalog of the Butterflies of the United States and Canada Illustrated Checklist of Neotropical Butterflies Support the Butterflies of America Foundation Interactive Listing of American Butterflies Photographer Credits Learn about contributing your photos Citation for this website Contact us
Papilionidae (Swallowtails)Pieridae (Whites and Sulphurs)Lycaenidae (Gossamerwings)Riodinidae (Metalmarks)Nymphalidae (Brushfoots)Hesperiidae (Skippers)Links to external lepidoptera websites

Glaucopsyche lygdamus couperi Grote, 1873
(Silvery Blue)

Pinned Specimens
photo collection Page 1:


Pinned Specimens
photo collection Page 2:

Live Adults
photo collection:

Distribution and Larval Foodplants:



(From: A Catalogue of the Butterflies of the United States and Canada, Jonathan P. Pelham)

  Genus Glaucopsyche Scudder, 1872

4th Ann. Rep. Peabody Acad. Sci. (1871): 54. Type-species: Polyommatus lygdamus E. Doubleday, 1841, Entomol. 1(14): 209-210, by original designation.

=    Phaedrotes Scudder, 1876

Bull. Buffalo Soc. Nat. Sci. 3: 115-116, no. 20. Type-species: Lycaena catalina Reakirt, 1866, Proc. Acad. Nat. Sci. Philad. 18(3): 244, no. 16 (= Lycaena sagittigera C. Felder & R. Felder, 1865, Reise Novara (2): 281-282, no. 357, pl. 35, figs. 20, 21: a subspecies of Lycaena piasus Boisduval, 1852, Annls. Soc. Entomol. Fr. (2)10(2): 299, no. 37), by original designation. F. Brown (1971), J. Lepid. Soc. 25(4): 240-246, determined this synonymy.

=    Apelles Hemming, 1931

Trans. Entomol. Soc. Lond. 79(2): 323-324. Type-species: Polyommatus melanops Boisduval, [1828], Europ. Lepid. Ind. Meth.: 13, by original designation.

=    Bajluana Korshunov & Ivonin, 1990

Nov. Maloizvest. Vid. Faun. Sib. 22: 69. Type-species: Lycaena argali Elwes, 1899, Trans. Entomol. Soc. Lond. (4)1899(3): 328, 329, by original designation.


Glaucopsyche lygdamus (E. Doubleday, 1841)

Entomol. 1(14): 209-210.

Original Combination: Polyommatus Lygdamus

Type Locality: “pine forests of North America, especially Georgia” A. Clark (1948), Proc. Entomol. Soc. Wash. 50(7): 176, suggested that the original specimens were collected by John Abbot in the “vicinity of his home at Jacksonboro, Screven Co., Georgia”; Klots (1951), Field Guide Butts. N. Am.: 168, stated “Screven Co., Georgia.” Drawings by John Abbot in the Natural History Museum in London indicate that he encountered this species long before his brief residence in Screven County, so Burke County, Georgia, is a more likely locality (Calhoun pers. comm. 2006).

Types: Holotype is lost or unrecognizable, not in BMNH or UMO.

=    nittanyensis F. Chermock, 1945

Can. Entomol. 76(11): 216.

Original Combination: Glaucopsyche lygdamus nittanyensis

Type Locality: “Bear Meadows, near State College, Pa.” [Centre County, Pennsylvania]

Types: Holotype in CMNH.

=    boydi A. Clark, 1948

Proc. Entomol. Soc. Wash. 50(7): 176-177.

Original Combination: Glaucopsyche lygdamus boydi

Type Locality: “Ice Mountain, Hampshire Co., West Virginia”

Types: Holotype (#58715) in USNM; figured by A. Clark (1940), Expl. Field Work Smithson. Inst. 1939: fig. 70, left ♂ D, middle ♂ V (holotype), right ♀ V.


Glaucopsyche lygdamus couperi Grote, 1873

Bull. Buffalo Soc. Nat. Sci. 1(4): 185.

Original Combination: Glaucopsyche Couperi

Type Locality: “Island of Anticosti, which lies in the Gulf of St. Lawrence, between latitudes 49o and 50o” implied from the introduction. [Quebec]

Types: Location of type(s) not known.

                         =    ‡”mcdunnoughi” Gunder, 1927

Can. Entomol. 59(12): 282, no. 4, pl. A, figs. 4 ♂ D, 4a ♂ V (“holotype”).

Original Combination: Glaucopsyche lygdamus race couperi tr. f. mcdunnoughi

Type Locality: “Sask., Can.” [Saskatchewan]

Types: “Holotype” in CNC.

This name was spelled “macdunnoughi” by dos Passos (1964), Mem. Lepid. Soc. (1): 68; an unjustified emendation.



Top of PageMain PageReference Library Literature ListCitation Interactive Listing

This website is supported by Butterflies of America Foundation, a U.S. registered 501(c)(3) tax-deductible nonprofit 170(b)(1)(A)(vi) public charity.