LEPIDOPTEROUS PUP2E AND THEIR SURROUNDING SURFACES. 
395 
These results show the indifference of the larvse to the green surroundings very 
clearly. It is most probable that the slight predominance of the darker forms over 
the lighter is due to the dim light in the shaded cylinders. 
4. Black. 
Degrees of coloar. 
(1) 
(2) 
Dark (3) 
(3) 
Light (3) 
(4) 
(5) 
Series II. Division G. . 
1 
= 1 
Not in 
black all 
} „ ni. „ C. . . 
, , 
2 
2 
1 
1 
= 6 
period 
„ IV. „ A. . . 
3 
4 
4 
1 
. . 
= 12 
„ IV. „ B. . . 
Groups 1 and 2 
5 
17 
13 
1 
= 36 
Same 
condi- < 
tions 
'Series VIII. Division A. 
Subdivision a. Blinded 
• • 
1 
7 
= 8 
Series VIII. Division A. 
Subdivision (3. Normal 
3 
1 
4 
= 8 
SeriesIX. DivisionB. Group 2 
, , 
1 
, , 
5 
, . 
1 
_ h» 
Same 
condi- - 
^Series XII. Division A. Sub¬ 
division a. Black in dark¬ 
ness 
2 
2 
4 
3 
2 
* * 
= 13 
tions 
Series XII. Division A. Sub¬ 
division /3. Black in light 
* * 
3 
3 
8 
* * 
* * 
= 14 
Totals. 
11 
29 
27 
22 
14 
2 
= 105 
Results expressed as percentages of 
the total 
10-5 
27-6 
257 
21-0 
13-3 
1-9 
These results show the powerful effects of the black surroundings quite as much in 
the absence of pupse in column (5), and the presence of only 2 in (4), as in their 
abundance in the other columns. 
3 E 2 
