Template:Felt, 1918c
- Felt, E.P. 1918. Appendix: A study of gall midges VI. Pp. 76–205: 213–230, pls. 4–12. In his 33rd Report of the State Entomologist on injurious and other insects of the State of New York 1917. New York State Museum Bulletin 202: 7–240, 12 pls.