Published in Proceedings of the Entomological Society of Philadelphia, in 1865, in volume 3, pages 443-504
Created: 2010-11-23, modified: 2011-06-21
Published in Proceedings of the Entomological Society of Philadelphia, in 1865, in volume 4, pages 1-200
Created: 2010-11-23, modified: 2011-06-21
Published in Proceedings of the Entomological Society of Philadelphia, in 1865, in volume 4, pages 208-212
Created: 2011-06-02, modified: 2011-06-21
Published in Proceedings of the Entomological Society of Philadelphia, in 1865, in volume 4, pages 224-242
Created: 2010-10-26, modified: 2011-06-21
Published in Proceedings of the Entomological Society of Philadelphia, in 1865, in volume 4, pages 242-313
Created: 2011-06-02, modified: 2011-06-21
Published in Proceedings of the Entomological Society of Philadelphia, in 1865, in volume 4, pages 381-384
Created: 2011-06-02, modified: 2011-06-21
Published in ] Proceedings of the Entomological Society of Philadelphia, in 1865, in volume 4, pages 426-488
Created: 2010-02-11, modified: 2011-06-21
Published in Proceedings of the Entomological Society of Philadelphia, in 1865, in volume 5, pages 133-147
Created: 2010-11-23, modified: 2011-06-21
On phytophagic varieties and phytophagic species, with remarks on the unity of coloration in insects
Published in Proceedings of the Entomological Society of Philadelphia, in 1865, in volume 5, pages 194-215
Created: 2011-06-02, modified: 2011-06-21