| Checklist of the coleopterous insects of Mexico, Central America, the West Indies, and South America RE Blackwelder US Government Printing Office, 1945 | 2715 | 1945 |
| Taxonomy: a text and reference book RE Blackwelder | 415 | 1967 |
| The generic names of the beetle family Staphylinidae RE Blackwelder Bulletin of the United States National Museum, 1952 | 322 | 1952 |
| Monograph of the West Indian beetles of the family Staphylinidae RE Blackwelder Bulletin of the United States National Museum, 1943 | 192 | 1943 |
| Morphology of the coleopterous family Staphylinidae RE Blackwelder Smithsonian Miscellaneous Collections, 1936 | 176 | 1936 |
| Fourth supplement, 1933 to 1938 (inclusive) to the Leng catalogue of Coleoptera of America, north of Mexico RE Blackwelder John D. Sherman, Jr., 1939 | 70 | 1939 |
| Fifth supplement, 1939 to 1947 (inclusive) to the Leng catalogue of Coleoptera of America, north of Mexico RE Blackwelder, RM Blackwelder JD Sherman, Jr., 1948 | 61 | 1948 |
| Animal taxonomy and the new systematics RE Blackwelder Survey of biological progress 4 (31–35), 53-57, 1962 | 45 | 1962 |
| The Nature of Systematics. Part I.-The Classification of the Zoological Sciences RE Blackwelder, A Boyden Systematic Zoology 1 (1), 26-29, 1952 | 45 | 1952 |
| A generic revision of the staphylinid beetles of the tribe Paederini RE Blackwelder Proceedings of the United States National Museum, 1939 | 42 | 1939 |
| A critique of numerical taxonomy RE Blackwelder Systematic Zoology 16 (1), 64-72, 1967 | 39 | 1967 |
| Phyletic and phenetic versus omnispective classification RE Blackwelder Phenetic and phylogenetic classification, 17-28, 1964 | 37 | 1964 |
| Notes on the classification of the staphylinid beetles of the groups Lispiniand Osoriinae RE Blackwelder Proceedings of the United States National Museum, 1942 | 35 | 1942 |
| Classification of the animal kingdom RE Blackwelder | 25 | 1963 |
| Studies on the dates of books on Coleoptera. I RE Blackwelder The Coleopterists Bulletin 3 (3), 42-46, 1949 | 25* | 1949 |
| Checklist of the Staphylinidae of Canada, United States, Mexico, Central America and the West Indies RE Blackwelder Biological Research Institute of America, 1973 | 24* | 1973 |
| The diversity of animal reproduction RE Blackwelder CRC Press, 2018 | 22 | 2018 |
| A Tolkien Thesaurus RE Blackwelder (No Title), 1990 | 18 | 1990 |
| The present status of systematic zoology RE Blackwelder Systematic Zoology 8 (2), 69-75, 1959 | 18 | 1959 |
| The functions and limitations of classification RE Blackwelder Systematic Zoology 8 (4), 202-211, 1959 | 17 | 1959 |
