- Blackman, M. W., and W. O. Ellis. 1915. Some insect enemies of shade trees and ornamental shrubs . New York State College of Forestry at Syracuse University, Bulletin 16:1-123.
- Buth, J. L., and R. A. Ellis. 1981a. Elm bark beetle research and control in Winnipeg, 1975 to 1981. Pages 451-453 in E. S. Kondo, Y. Hiratsuka, and W. B. G. Denyer (eds.), Proceedings, Dutch elm disease symposium and workshop, 5-9 October 1981, Winnipeg, Manitoba. Canada Department of the Environment, Canadian Forestry Service, and Province of Manitoba, Department of Natural Resources. 517 p.
- Buth, J. L., and R. A. Ellis. 1981b. Trapping elm bark beetles in the city of Winnipeg, with a new record for Scolytus multistriatus (Coleoptera: Scolytidae) in Manitoba . Canadian Entomologist 113:263-264.
- Ellis, D. E. 1939. Ceratostomella ips associated with Ips lecontei in Arizona . Phytopathology 29:556-557.
- Harrar, J. G., and R. P. Ellis. 1940. The biology of a species of Beauveria from the southern pine bark beetle [abstract] . Virginia Academy of Sciences, Proceedings 1:211.
- Gutierrez, A., A. Villacorta, J. Cure, and C. Ellis. 1998. Tritrophic analysis of the coffee (Coffee arabica)' Coffee berry borer (Hypothenemus hampei (Ferrari)): Parasitoid system . Anais da Sociedade Entomologica do Brasil 27:357-385.