444 
Journal of Agricultural Research 
Vol. XXI, No. 7 
Table I. —Distribution of spiny armature on the segments of fifth-stage II. lineatum 
larvae, based on 106 specimens studied 
Armature on 
segments No. 
Ventral. 
Ventro-lateral. 
Medio-lateral. 
Dorso-lateral. 
Dorsal. 
Ante- 
Poste- 
Ante- 
Poste- 
Ante- 
Poste- 
Ante- 
Poste- 
Ante- 
Poste- 
rior. 
rior. 
rior. 
rior. 
rior. 
rior. 
rior. 
rior. 
rior. 
rior. 
2 to IO . 
o 
106 
o 
a 19 
0 
I 
O 
a 32 
0 
c - 13 
2 to 9. 
*°5 
o 
34 
I 
O 
0 
O 
a 6 
a 2 
a 9 
2 to 8. 
I 
o 
64 
0 
a 20 
O 
79 
0 
/ 88 
0 
2 to 7. 
o 
o 
8 
0 
29 
0 
22 
0 
d 16 
0 
2 to 6. 
o 
o 
0 
0 
48 
0 
5 
0 
0 
O 
2 to 5 . 
o 
o 
0 
O 
9 
O 
0 
O 
O 
O 
3 to 9. 
o 
o 
0 
6 
0 
« 18 
0 
c 11 
O 
a 10 
4 to 9. 
o 
o 
0 
a j 
0 
« 18 
0 
4 
O 
4 
5 to 9 . 
o 
o 
0 
0 
0 
2 
0 
4 
O 
15 
3 to IO. 
o 
o 
0 
b 47 
0 
& 28 
0 
c 4 i 
O 
16 
4 to io. 
o 
o 
0 
e 26 
0 
d 34 
0 
5 
O 
27 
5 to io. 
o 
0 
0 
0 
0 
a 3 
0 
3 
O 
10 
4 to 8. 
o 
o 
0 
0 
0 
a 2 
0 
0 
O 
a 2 
Total larvae. 
106 
106 
106 
106 
106 
106 
106 
106 
106 
106 
° One specimen with i or more unarmed segments between the first and last armed segments as given 
in first column. 
& Two specimens with i or more unarmed segments between the first and last armed segments as given 
in first column. 
c Three specimens with i or more unarmed segments between the first and last armed segments as given 
m first column. 
d Four specimens with i or more unarmed segments between the first and last armed segments as given 
in first column. 
e Ten specimens with i or more unarmed segments between the first and last armed segments as given 
in first column. 
/ Forty-one specimens with i or more unarmed segments between the first and last armed segments as 
given in first column. 
TablF II. —Distribution of spiny armature on the segments of fifth-stage II. bovis 
larvae, based on 108 specimens studied 
Armature on seg¬ 
Ventral. 
Ventro-lateral. 
Medio-lateral. 
Dorso-lateral. 
Dorsal. 
ments No. 
Ante¬ 
Poste¬ 
Ante¬ 
Poste¬ 
Ante¬ 
Poste¬ 
Ante¬ 
Poste¬ 
Ante¬ 
Poste¬ 
rior. 
rior. 
rior. 
rior. 
rior. 
rior. 
rior. 
rior. 
rior. 
rior. 
2 to IO . 
I 
0 
0 
0 
O 
O 
O 
O 
O 
O 
2 tO 9. 
107 
108 
b 29 
I 
O 
O 
O 
O 
, O 
O 
2 to 8. 
O 
O 
d 65 
0 89 
0 2 
. d 4 3 
0 
084 
0 
82 
2 to 7. 
O 
O 
II 
16 
0 2 
«4i 
IO 
C J2 
O 
a 18 
2 to 6 . 
O 
O 
3 
I 
14 
I 
0 18 
O 
i II 
0 
2 tO 5 . 
O 
O 
O 
I 
33 
O 2 
0 35 
0 
/ 27 
O 
2 tO 4. 
O 
O 
O 
O 
55 
O 
26 
O 
*3 
O 
2 tO 3 . 
O 
O 
O 
O 
2 
I 
18 
O 
52 
O 
3 to 7. 
O 
O 
O 
O 
0 
O9 
0 
I 
0 
2 
3 to 8 . 
O 
O 
O 
O 
0 
a 9 
1 
c 6 
0 
6 
4 to 8 . 
O 
O 
O 
O 
0 
1 
0 
1 
0 
0 
S to 7. 
O 
O 
O 
O 
0 
0 
0 
3 
0 
0 
5 to 8. 
O 
O 
O 
O 
0 
0 
0 
1 
0 
0 
O 
O 
O 
O 
0 
0 
0 
0 
5 
0 
4. 
O 
O 
O 
O 
0 
1 
0 
0 
0 
0 
Total larvae. 
108 
108 
108 
108 
108 
108 
108 
108 
108 
108 
a One specimen with i or more unarmed segments between the first and last armed segments as given 
in first column. 
& Two specimens with i or more unarmed segments between the first and last armed segments as given 
in first column. 
c Three specimens with i or more unarmed segments between the first and last armed segments as 
given m first column. 
d Six specimens with i or more unarmed segments between the first and last armed segments as given 
in first column. 
. * Seven specimens with i or more unarmed segments between the first and last armed segments as given 
in first column. 
/ Eight specimens with i or more unarmed segments between the first and last armed segments as given in 
first column. 
0 Eighteen specimens with i or more unarmed segments between the first and last armed segments as 
given in first column. 
