Butterflies and skippers of northern Ontario
By: by J.C.E. Riotte.
Series: Mid-continent lepidoptera series -- v. 2 (no. 21)
Publisher: John H. and Wilma L. Masters
Published: 1971
Place of publication: Saint Paul, Minn
Language: eng
Number of pages: 20
Subjects: Butterflies -- Ontario, Northern; Hesperiidae.
Notes: Cover title.