كتب ذات صلة

Fossil butterflies.

• Revision of the orthopteran group melanopli acridiidae with special reference to North American forms
  المؤلفون: Scudder, Samuel H.
• The earliest winged insects of America a re-examination of the Devonian insects of New Brunswick, in light of criticisms and of new studies of other Paleozoic types.
  المؤلفون: Scudder, Samuel H.
• Guide to the genera and classification of the North American Orthoptera found north of Mexico
  المؤلفون: Scudder, Samuel H.

• A check list of North-American birds
  المؤلفون: Coues, Elliott
• A check list of North American birds.
  
• Fossil butterflies.