| Type | Article |
| Authors(s) | Schaefer, C.W. |
| Year | 1981a |
| Title | Improved cladistic analysis of the Piesmatidae and consideration of known host plants |
| Volume | 74 |
| Page(s) | 536-539 |
| Published in/Publisher | Annals of the Entomological Society of America |
| Type | Article |
| Authors(s) | Schaefer, C.W. |
| Year | 1981a |
| Title | Improved cladistic analysis of the Piesmatidae and consideration of known host plants |
| Volume | 74 |
| Page(s) | 536-539 |
| Published in/Publisher | Annals of the Entomological Society of America |