| Publication Type: | Journal Article |
| Year of Publication: | 1924 |
| Authors: | H. Powell |
| Journal: | Études de Lépidoptèrologie Comparée |
| Volume: | 22 |
| Pagination: | 1-9 |
| Date Published: | 1924 |
| Keywords: | MIGRATION, SPHINGIDAE |
| Publication Type: | Journal Article |
| Year of Publication: | 1924 |
| Authors: | H. Powell |
| Journal: | Études de Lépidoptèrologie Comparée |
| Volume: | 22 |
| Pagination: | 1-9 |
| Date Published: | 1924 |
| Keywords: | MIGRATION, SPHINGIDAE |