| Auteur(s) | Cushman, R.A. |
| Jaar | 1916 |
| Titel | Syntomaspis druparum, the apple-seed chalcid. J. Agric. Res. 7: 487-501, pls. 37-40. |
| Auteur(s) | Cushman, R.A. |
| Jaar | 1916 |
| Titel | Syntomaspis druparum, the apple-seed chalcid. J. Agric. Res. 7: 487-501, pls. 37-40. |