76 
Psyche 
[March 
2. The relative frequencies approximated a logarithmic sequence. 
3. The annual peak occurred in the first wet sunny season. 
4. Additional to the annual cycle peaks occurred about every 30 
days. . . 
5. The more frequent species showed fluctuations in parallel. 
6. It is suggested Schneirla cycles were present in the species 
sampled. 
7. The ultimate factor in the annual production pattern is proba¬ 
bly the availability of food to the parent colony. 
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