Colorado butterflies
By: by F. Martin Brown, assisted by Donald Eff and Bernard Rotger.
Series: Denver Museum of Natural History. Proceedings, no. 3-7; Popular series (Denver Museum of Natural History) -- no. 3-7.
Published: 1954
Place of publication: Denver
Language: eng
Subjects: Butterflies -- Colorado.
Notes: "A key to the families of true butterflies": p. [3] of covers.

Cover title.
Table of contents: value: pt. 1. Satyridae.; value: pt. 2. Danaudae.  Heliconidae.  Nymphalidae.; value: pt. 3. Libytheidae.  Riodinidae.  Lycaenidae.; value: pt. 4. Pieridae. Papilionidae.; value: pt. 5. Hesperiidae.  Megathymidae.