McCook, H. C. 1881a ("1880"). Note on a new northern cutting ant, Atta septentrionalis. Proceedings of the Academy of Natural Sciences of Philadelphia 32:359-363. PDF
McCook, H. C. 1881b. The honey ants of the Garden of the Gods. [part]. Proceedings of the Academy of Natural Sciences of Philadelphia 33:17-24. PDF
McCook, H. C. 1881d. The honey ants of the Garden of the Gods. [concl.]. Proceedings of the Academy of Natural Sciences of Philadelphia 33:57-77. PDF
McKenzie, N. L.; Johnston, R. B.; Kendrick, P. G. (eds.) 1991. Kimberley rainforests. Chipping Norton, N.S.W.: Surrey Beatty & Sons, xviii + 490 pp.
Medeiros, M. A. de; Fowler, H. G.; Delabie, J. H. C. 1995. O mosaico de formigas (Hymenoptera: Formicidae) em cacauais do sul da Bahia. Científica (Jaboticabal) 23:291-300.

Notes: Possibly published after 1995. Received at UC Berkeley library 28 May 1997. Senior author given elsewhere as "Medeiros, M. A. de".

Medina, M. 1889. [Untitled. Introduced by: "El Sr. Medina leyó la nota siguiente."]. Anales de la Sociedad Española de Historia Natural (Actas) 18:31. PDF
Medina, M. 1892. [Untitled. Introduced by: "El Sr. Medina leyó la nota siguiente."]. Anales de la Sociedad Española de Historia Natural (Actas) (2)1[=21]:69-70.
Medina, M. 1893. Formicidos de Pozuelo de Calatrava (Ciudad-Real). Anales de la Sociedad Española de Historia Natural (Actas) (2)1[=21]:104-105. PDF
Medler, J. T. 1980. Insects of Nigeria - Check list and bibliography. Memoirs of the American Entomological Institute 30:1-919. PDF

Notes: Ants pp. 484-488.

Meggers, B. J.; Ayensu, E. S.; Duckworth, W. D. (eds.) 1973. Tropical forest ecosystems in Africa and South America: a comparative review. Washington, D.C.: Smithsonian Institution Press, viii + 350 pp.
Mei, M. 1984 ("1982"). Nuovi reperti de formicidi per l'Italia centrale (Hymenoptera, Formicidae). Bollettino dell'Associazione Romana di Entomologia 37:49-58.