Smithsonian Report. 1961. — Roedcr and Treat 



PLATE 6 



Flight tracks registered by various moths just before, and immediately followiiitr, exposure 

 to a series of simulated bat cries. The dotted appearance of the tracks is due to the 

 individual wingbeats of the moth. The beginning of each track appears in each photo- 

 graph, and the moth finally flies out of the field. 



