Glaucopsyche lygdamus nittanyensis F. Chermock, 1945;  Comments: differs in size, maculation and habitat preference TL: USA (Pa).

Glaucopsyche lygdamus nittanyensis, text from: Clark, Austin Hobart & Leila Forbes Clark. 1951. The butterflies of Virginia. Smithsonian Miscellaneous Collections 116(7): vii + 239 pp., frtspc., 30 pls. {20 Dec, 1951}; pp. 72-73.   —   © Smithsonian libraries