| Type | Article |
| Authors(s) | Hagan, H.R. |
| Year | 1931 |
| Title | The embryogeny of the polyctenid, Hesperoctenes fumarius Westwood, with reference to viviparity in insects |
| Volume | 51 |
| Page(s) | 3-117 |
| Published in/Publisher | Journal of Morphology and Physiology |
| Type | Article |
| Authors(s) | Hagan, H.R. |
| Year | 1931 |
| Title | The embryogeny of the polyctenid, Hesperoctenes fumarius Westwood, with reference to viviparity in insects |
| Volume | 51 |
| Page(s) | 3-117 |
| Published in/Publisher | Journal of Morphology and Physiology |