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[December 
References Cited 
Baroni Urbani, C. 
1977. Les especes europeenes du genre Proceratium Roger (Hymenoptera: 
Formicidae). Mitt. Schweiz. Ent. Ges. 50: 91-93. 
Bolton, B.. W. H. Gotwald and J.-M. Leroux. 
1976. A new West African ant of the genus Plectroctena with ecological notes 
(Hymenoptera: Formicidae). Ann. Univ. Abidjan (E) 9: 371-381. 
Borgmeier, T. 
1957. Myrmecologische Studien. 1. An. Acad. Sci. Brasil. Ci. 29: 101-128. 
Brown, W. L., Jr. 
1958a. Contributions toward a reclassification of the Formicidae. II. Tribe Ecta- 
tommini (Hymenoptera). Bull. Mus. Comp. Zool. Harv. 118: 171-362. 
1958b. Predation of arthropod eggs by the ant genera Proceratium and Discothy- 
rea. Psyche 64: 115. 
1974. A remarkable new island isolate in theant genus Proceratium (Hymenop¬ 
tera: Formicidae). Psyche 81: 70-83. 
Snelling, R. R. 
1967. Studies on California ants. 3. The taxonomic status of Proceratium 
californicum Cook (Hymenoptera: Formicidae). Contrib. Sci. Los 
Angeles Co. Mus. 124: 1-10. 
