Smith, M. R. 1947f. A generic and subgeneric synopsis of the United States ants, based on the workers. American Midland Naturalist 37:521-647. PDF

Smith, M. R. 1947g. A study of Polyergus in the United States, based on the workers (Hymenoptera: Formicidae). American Midland Naturalist 38:150-161. PDF

Smith, M. R. 1947h. Notes on Pheidole (Decapheidole) and the description of a new species (Hymenoptera: Formicidae). Revista de Entomologia (Rio de Janeiro) 18:193-196. PDF

Smith, M. R. 1947i. A new genus and species of ant from Guatemala (Hymenoptera, Formicidae). Journal of the New York Entomological Society 55:281-284. PDF

Smith, M. R. 1948. A new species of Myrmecina from California (Hymenoptera, Formicidae). Proceedings of the Entomological Society of Washington 50:238-240. PDF

Smith, M. R. 1949a ("1948"). A new genus and species of ant from India (Hymenoptera: Formicidae). Journal of the New York Entomological Society 56:205-208. PDF

Smith, M. R. 1949b. A new species of Probolomyrmex from Barro Colorado Island, Canal Zone (Hymenoptera, Formicidae). Proceedings of the Entomological Society of Washington 51:38-40. PDF

Smith, M. R. 1949c. On the status of Cryptocerus Latreille and Cephalotes Latreille (Hymenoptera: Formicidae). Psyche (Cambridge) 56:18-21. PDF

Smith, M. R. 1949d. A new species of Camponotus, subg. Colobopsis from Mexico (Hymenoptera: Formicidae). Journal of the New York Entomological Society 57:177-181. PDF

Smith, M. R. 1949e. A new Leptothorax commonly inhabiting the canyon live oak of California (Hymenoptera: Formicidae). Psyche (Cambridge) 56:112-115. PDF

Smith, M. R. 1950a. On the status of Leptothorax Mayr and some of its subgenera. Psyche (Cambridge) 57:29-30. PDF

Smith, M. R. 1950b. [Review of: Creighton, W. S. 1950. The ants of North America. Bulletin of the Museum of Comparative Zoology 104:1-585.]. Proceedings of the Entomological Society of Washington 52:274-275. PDF

Smith, M. R. 1950c. Order Hymenoptera. Ants. Family Formicidae. Pp. 261-300 in: Weinman, C. J. (ed.) 1950. Pest control technology. Entomological section. New York: National Pest Control Association, vii + 365 + [50] pp.

Smith, M. R. 1951a. [Review of: Creighton, W. S. 1950. The ants of North America. Bulletin of the Museum of Comparative Zoology 104:1-585.]. The Scientific Monthly 72:63.

Smith, M. R. 1951b. A new species of Stenamma from North Carolina (Hymenoptera, Formicidae). Proceedings of the Entomological Society of Washington 53:156-158. PDF

Smith, M. R. 1951c. Family Formicidae. Pp. 778-875 in: Muesebeck, C. F. W.; Krombein, K. V.; Townes, H. K. (eds.) 1951. Hymenoptera of America north of Mexico. Synoptic catalogue. United States Department of Agriculture. Agriculture Monograph 2:1-1420. PDF

Notes: Publication date from Muesebeck, Krombein & Townes (1951).

Smith, M. R. 1951d. Two new ants from western Nevada (Hymenoptera, Formicidae). Great Basin Naturalist 11:91-96. PDF

Smith, M. R. 1952a. The correct name for the group of ants formerly known as Pseudomyrma (Hymenoptera). Proceedings of the Entomological Society of Washington 54:97-98. PDF

Smith, M. R. 1952b. On the collection of ants made by Titus Ulke in the Black Hills of South Dakota in the early nineties. Journal of the New York Entomological Society 60:55-63. PDF

Smith, M. R. 1952c. North American Leptothorax of the tricarinatus-texanus complex (Hymenoptera: Formicidae). Journal of the New York Entomological Society 60:96-106. PDF

Smith, M. R. 1953a. A revision of the genus Romblonella W. M. Wheeler (Hymenoptera: Formicidae). Proceedings of the Hawaiian Entomological Society 15:75-80. PDF

Smith, M. R. 1953b. Dolichoderus granulatus Pergande, a synonym (Hymenoptera, Formicidae). Proceedings of the Entomological Society of Washington 55:211. PDF

Smith, M. R. 1953c. A new species of Probolomyrmex, and the first description of a Probolomyrmex male (Hymenoptera, Formicidae). Journal of the New York Entomological Society 61:127-129. PDF

Smith, M. R. 1953d. A new Metapone from the Micronesian Islands (Hymenoptera, Formicidae). Journal of the New York Entomological Society 61:135-137. PDF

Smith, M. R. 1953e. A new Pheidole (subg. Ceratopheidole) from Utah (Hymenoptera: Formicidae). Journal of the New York Entomological Society 61:143-146. PDF

Smith, M. R. 1953f. A new Romblonella from Palau, and the first description of a Romblonella male (Hymenoptera, Formicidae). Journal of the New York Entomological Society 61:163-167. PDF

Smith, M. R. 1953g. Pogonomyrmex salinus Olsen, a synonym of Pogonomyrmex occidentalis (Cress.) (Hymenoptera: Formicidae). Bulletin of the Brooklyn Entomological Society 48:131-132. PDF

Smith, M. R. 1954a. A new name for Martia Forel (Hymenoptera). Bulletin of the Brooklyn Entomological Society 49:17. PDF

Smith, M. R. 1954b ("1953"). A new Camponotus in California apparently inhabiting live oak, Quercus sp. (Hymenoptera, Formicidae). Journal of the New York Entomological Society 61:211-214. PDF

Smith, M. R. 1954c. Ants of the Bimini Island Group, Bahamas, British West Indies (Hymenoptera, Formicidae). American Museum Novitates 1671:1-16. PDF