182 Toyama. 
69 matings of the black worms and 65 matings of the red worms 
were made, of which the former laid the eggs which yielded uniform 
(black only) and mixed (red and black) offsprings, and the latter only 
red worms, as is shown in Table 3. 
Table 3. 
en Emergence of ‘ 
Parentage Zu moths and nr Kind of worms hatched 
Parent worms oviposition the eggs 
black 29/7—2,8/06 | 16—17/4/07 | Of the 58 matings obtained from 
this parentage, 35 yielded only 
black worms, and the rest red 
25 and black worms. 
red do. do. Of the 25 matings, all produced 
red worms. 
black do. do. Of the 11 matings, 8 yielded only 
black worms, and 3 red and 
black worms. 
red do. do Of the 12 pairings, 11 produced 
h simply red worms while only 
20 one red and black worms 
nearly in the proportion of 
1 red:1 black. It must be 
supposed, however, that this 
was due to accident. 
Mixed red do. do. Of the 20 batches, all produced 
parentage uniform red worms, no black 
ones. 
The number of both red and black worms found in each black 
mating is shown in Table 4 and 5. 
Table 4. 
Number of red and black worms found in each pairing of parentage No. 25. 
No. of egg- Number of black 
Number of red worms Total 
batches!) worms 
8 53 (25.6 %) 154 207 
9 53 (22.45 %) 183 236 
12 73 (20.11 %) 290 363 
15 60 (24.59 %) 189 244 
77 66 (24.81 %) 200 266 
6 70 (28 %) 180 250 
7 32 (27.11 %) 86 118 
1) Each batch of eggs represents the total of the eggs laid by a pairing. 
