Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
A monograph of the geometrid moths or Phalaenidae of the United States
By Packard, A.S.
United States Geological Survey of the Territories, 1-607, 1876
Cite: 1333179 with citation markup [cite:1333179]
Available online here.