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[June-September 
Table 1. Important measurable characteristics of the calls (sequences) of males and females of Chrvsopa downesi. Data from heterosexual, 
homosexual, and solo calls are pooled due to insignificant differences. Mean values and their standard deviations are tabulated; intervals 
and duration are in seconds, frequency in abdominal strokes per second. Sample sizes are entered parenthetically: the larger figure 
represents the number of calls measured, while the smaller one is the number of different individuals producing more than 10 of such calls. 
Parts 1 and 2 as in Fig. 1. 
