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JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 16 
Experiment No. 1 was conducted with beetles marked with aniline 
green. 3,234 beetles were released, of which 15 were recovered. The 
average interval was 8-^ days and the average distance from point of 
liberation was .52 miles. One beetle was recovered 1.7 miles from the 
point of liberation. This was the longest distance observed in any of the 
experiments. 
Experiment No. 2 was conducted with beetles marked with anili ne 
blue. 18,019 beetles were released, of which 23 were recovered. The 
average interval was 4 days and the average distance was .38 miles 
from point of liberation. 
Experiment No. 3 was conducted with beetles marked with gentian 
violet. 4,533 beetles were released, of which 11 were recovered. The 
average interval was days and the average distance from point of 
liberation was .83 miles. Four of these beetles flew over a mile each. 
