222
H. KLOMP
A
NUMBER OF NYMPHS COLLECTED ON
DATES GIVEN ON THE ABSCISSA
TO
11 13 15 17 19 21 23 25 2;
OCTOBER
C
L 29 31 2 4 6 8 10
NOVEMBER
FIG. 6. Assessment of nymphal density.
nymphs.
some yeara slight modifications of these patterns were used.
collected deily i n 62 funnels of one m* each, i n the autumn of 1964.
A. The funnel used to catch the domending
B. Two examples of the distribution of 100 funnels over the study area. In
C. Number of nymphs