| Hackberry Acorn Gall Midge | Celticecis | celtiphyllia | | 1 | Gall and Wood Midges | Cecidomyiidae | Diptera | Insecta | Animalia |
| Hackberry Popout Gall Midge | Celticecis | expulsa | | 2 | Gall and Wood Midges | Cecidomyiidae | Diptera | Insecta | Animalia |
| Hackberry Tenpin Gall Midge | Celticecis | ovata | | 4 | Gall and Wood Midges | Cecidomyiidae | Diptera | Insecta | Animalia |
| Hackberry Spherical Stem Gall Midge | Celticecis | oviformis | | 1 | Gall and Wood Midges | Cecidomyiidae | Diptera | Insecta | Animalia |
| Hackberry Thorn Gall Midge | Celticecis | spiniformis | | 18 | Gall and Wood Midges | Cecidomyiidae | Diptera | Insecta | Animalia |
| Hackberry Recumbent Gall | Celticecis | supina | | 1 | Gall and Wood Midges | Cecidomyiidae | Diptera | Insecta | Animalia |