236 
Psyche 
[June-September 
Finally, I am grateful to Dr. P. E. Vanzolini for the helpful 
suggestions during the elaboration of this paper. 
References 
Bhatkar, A., and W. H. Whitcomb. 
1970. Artificial diet for rearing various species of ants. Florida Entornol. 53: 
229-232. 
Buren, W.F. 
1968. Some fundamental taxonomic problems in Formica (Hymenoptera: 
Formicidae). J. Georgia Entornol. Soc., 3(2): 25-40. 
Fagen, R. M., and R. N. Goldman. 
1977. Behavioral Catalogue Analysis Method. Anim. Behav., 25(2): 261-274. 
Gregg, R. E. 
1963. The ants of Colorado. University of Colorado Press, Boulder, Colorado, 
xvi + 792 pp. 
Kay, C. A., and W. G. Whitford. 
1975. Influences of temperature and humidity on oxygen consumption of five 
Chihuahuan desert ants. Comp. Biochem. Psysiol. A., 52 : 281-286. 
King, R. L., and F. Walters. 
1950. Population of a colony of Formica rufa melanotica Emery. Proc. Iowa 
Acad. Sci., 57: 469-473. 
LaBerge, W. E. 
1952. Locality records of two ants found in Kansas. J. Kansas Entornol. Soc. 
25 : 59. 
Oster, G. E., and E. O. Wilson. 
1978. Cast and Ecology in the Social Insects. Princeton University Press, 
Princeton, New Jersey (in press). 
Otto, D. 
1958. Uber die Arbeitsteilung im Staate von Formica rufapratensis minor 
Gosswald und ihre. Verhaltensphysiologischen Grundlagen: Ein Beitrag 
zur Biologie der Roten Waldarneise. Wiss. Abh. Deutsche Akad. 
Landw. — Wiss Berlin 30: 1-169. 
Schumacher, A. M., and W. G. Whitford. 
1974. The foraging ecology of two species of Chihuahuan desert ants: Formica 
perpilosa and Trachymyrmex neomexicanus (Hymenoptera: Formici- 
dae). Ins. Soc. 21 : 317-330. 
1976. Spatial and temporal variation in Chihuahuan desert ant faunas. South- 
west Natur. 21 : 1-8. 
Traniello, J. F. A. 
1978. Caste in a primitive ant: Absence of age polyethism in Amblyopone. 
Unpublished manuscript. 
Whitford, W. G., C. A. and A. M Schumacher. 
1975. Water loss in Chihuahuan desert ants. Physiol. Zool. 48 : 390-397. 
