1980] 
Young — Ecology of Cicadas 
195 
support. Dr. Dieter C. Wasshausen of the Smithsonian Institution 
provided identifications of the tree species discussed. Dr. Thomas E. 
Moore of The Museum of Zoology at The University of Michigan 
assisted with the identification of the cicadas, gave the author access 
to the UMMZ cicada collections and other information concerning 
cicadas, accompanied the author on one of the visits to the locality 
to record the calls of cicadas, and discussed cicada biology with the 
author. I thank Dr. Henk Wolda, who, in the capacity of a referee 
for this journal, made many helpful suggestions on the manuscript. 
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