STUDIES ON THE INSECT FAUNA ON SCOTCH BROOM
111
TABLE XI
Life-lablee I$ P. olivacea 1954-58 (Richards and WabJ, 1961)
No.
No. of
“/o of
enterstage
etage
tslity
lsted
Stage
i n K
which
which ofthat
morstage
died
died
stage talitiee
initid egg no.
egg no.
aa ?& of % of
-____-.
.
Eggs
Eggs and larval instam I-IV
(i.6. total mortality on
broom)
IV larvae and pupae in soil
Adults in autumn 1954
Survivors of preceding
adulta to spring 1955
Survivors of spring 1954
adults to spring 1955
Total adults spring 1955
Eggs
Larval h t a m I-IV
Total mortality on broom
IV larvae and pupae in soil
Adulte in autumn 1956
Survivore of preceding
adulta to spring 1956
Survivors of 1955 spring
adults to Rpring 1956
Total adulta spring 1956
Eggs
E g p m d W a l instm 1-111
IV instar
Total mortality on broom
137 larvae and pupae in soil
Adulta in autumn 1956
Survivore of preceding adulta
t o spring 1957
Survivore of 1956 spring
adults to spring 1957
Total adulte spring 1967
1954
460 169
-
-
-
-
-
396230
86.10
86.10
86.10
63939
29 884
46-73
6-49
92-69
34055
20439
60.32
4.45
97.04
1955
659554
372054
56.41
56.41
56.41
287 500
149890
52.13
22.72
79-13
521 944
-
-
79.13
137610
99766
72.49
15.12
94.25
37844
25837
68-17
3.91
98.16
-
1956
701 563
661 163
94.24
94.24
94.24
-
694273
98.96
-
98-96
7290
150
2.06
0.02
98.98
694423
-
-
98.98
7140
1843
25.81
0.26
99.24
5297
2458
46.41
0-35 99.69
-.