The Butterflies of North America,
Zeller, P. C. (Philipp Christoph), 1808-1883
Article
1874
Entomologische Zeitung
35
430--443
BioStor
German
[Stettin Entomologischer Verein zu Stettin 1840-1911]
BioStor: https://biostor.org/reference/196949