Whiting, P. W. 1938. Anomalies and cast [sic] determination in ants. Journal of Heredity 29:189-193.
Whitley, G. 1936. Ichthyological genotypes: some supplementary remarks. Australian Zoologist 8:189-192.

Notes: Relevant to dating Latreille (1804).

Whymper, E. 1891. Travels amongst the Great Andes. London: J. Murray, xxii + 147 pp.
Wiel, P. 1926. Formica pressilabris Nyl. in Nederland. Entomologische Berichten (Amsterdam) 7:106.
Wiel, P. 1927. Een nest van Ponera punctatissima Rog. Entomologische Berichten (Amsterdam) 7:175-176.
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Wild, A. L. 2007a. Taxonomic revision of the ant genus Linepithema (Hymenoptera: Formicidae). University of California Publications in Entomology 126:1-151. PDF