Freeman Bibliographical Database
| Identifier: | A6262 |
| Date: | 1864--1865 |
| Concise reference: | Walsh, Benjamin Dann. 1864-1865. On phytophagic varieties and phytophagic species (with remarks on the utility of coloration in insects). Proceedings of the Entomological Society of Philadelphia 3: 403-430; 5: 194-216. [inscribed][Darwin Pamphlet Collection] |