Wisniewski, J.; Moskaluk, A. 1975. Mrówki z grupy Formica rufa (Hym., Formicidae) w Karkonoskim Parku Narodowym. Prace Komisji Nauk Rolniczych i Komisji Nauk Lesnych 40:153-156.
Wisniewski, J.; Sokolowski, A. 1983a. Stanowiska pseudogin Formica polyctena Först. (Hym., Formicidae) w Polsce. Prace Komisji Nauk Rolniczych i Komisji Nauk Lesnych 56:145-149.
Wojcik, D. P.; Banks, W. A.; Buren, W. F. 1975. First report of Pheidole moerens in Florida (Hymenoptera: Formicidae). United States Department of Agriculture. Cooperative Economic Insect Report 25:906.
Wojcik, D. P.; Buren, W. F.; Grissell, E. E.; Carlysle, T. 1976. The fire ants (Solenopsis) of Florida (Hymenoptera: Formicidae). Florida Department of Agriculture and Consumer Services. Division of Plant Industry. Entomology Circular 173:1-4.
Wolcott, G. N. 1936. Insectae Borinquenses. A revised annotated check-list of the insects of Puerto Rico. Journal of Agriculture of the University of Puerto Rico 20:1-627. PDF

Notes: Publication date from Wolcott (1941). Ants pp. 539-556.

Wolcott, G. N. 1941. A supplement to "Insectae Borinquenses". Journal of Agriculture of the University of Puerto Rico 25:33-158.

Notes: Ants pp. 148-150.

Wolcott, G. N. 1951 ("1948"). The insects of Puerto Rico. Hymenoptera. Journal of Agriculture of the University of Puerto Rico 32:749-975. PDF

Notes: Ants pp. 810-839.

Wolf, H. 1954. Über westdeutsche Myrmica-Arten. Deutsche Entomologische Zeitschrift (N.F.)1:121-123. PDF
Wolf, H. 1957 ("1956"). Plagiolepis xene Staerke [sic], eine für Deutschland neue Ameise (Hym. Form. Formicinae). Mitteilungen der Deutschen Entomologischen Gesellschaft 16:13.
Wolf, K. 1915. Studien über palaearktische Formiciden. I. Bericht des Naturwissenschaftlich-Medizinischen Vereins in Innsbruck. 35:37-52. PDF
Woyciechowski, M. 1993. Ants (Hymenoptera, Formicidae) of the glades in the Tatra Mts (the Carpathians). Tiscia (Szeged) 27:17-22.

Notes: May have been published in 1994. Journal received at UC Berkeley Library on 9 January 1995.

Wray, D. L. 1950. Insects of North Carolina. Second supplement. Raleigh: North Carolina Department of Agriculture, 59 pp.

Notes: Ants pp. 36-37.

Wray, D. L. 1967. Insects of North Carolina. Third supplement. Raleigh: North Carolina Department of Agriculture, 181 pp.

Notes: Ants pp. 112-117.