STRAIN AND INDIVIDUAL IDIOSYNCRASIES T.'J 



Fi 1^ Ital. Sal. X $ Bagdad; produced all zebra larvae and all 

 yellowish salmon to golden yellow cocoons. 



F2 Hyb. zebra larva, salmon-yellow cocoon X hyb. zebra larva, 

 salmon-yellow cocoon; produced zebra larvae spinning 19 

 white and 19 salmon to yellow cocoons, and white larvae 

 spinning 4 salmon to yellow cocoons. 



F2 Hyb. zebra larva, salmon-yellow cocoon X hyb. zebra larva, 



salmon-yellow cocoon; produced 68 zebra larvae spinning 



14 white and 38 salmon to yellow cocoons, and 26 white 



larvae spinning 2 white and 12 salmon to yellow cocoons. 



Fi ($ Bagdad X $ Ital. Sal, ; produced all zebra larvae and 78 white 



and 71 salmon cocoons. 



F2 Hyb. zebra larva, white cocoon X hyb. zebra larva, white 

 cocoon ; produced 96 zebra larvae spinning 73 white and 23 

 salmon cocoons and 26 white larvae spinning 4 white and 

 I salmon cocoons. 



F2 Hyb. zebra larva, white cocoon X hyb. zebra larva, white 

 cocoon; produced 108 zebra larvae spinning 58 white and 

 20 very pale salmon to light yellow-salmon cocoons, and 40 

 white larvae spinning 22 white and 8 pale salmon cocoons. 



F2 Hyb. zebra larva, white cocoon X hyb. zebra larva, white 

 cocoon; produced 125 zebra larvae spinning 64 white and 16 

 salmon cocoons, and white larvae spinning 15 white and 72 

 salmon cocoons. 



F2 Hyb. zebra larva, salmon cocoon X hyb. zebra larva, salmon 

 cocoon ; produced 105 zebra larvae spinning 9 white and 55 

 pale to yellow salmon cocoons, and 67 white larvae spinning 

 17 white and 50 pale to yellow salmon cocoons. 



F2 ^ Hyb. zebra larva, white cocoon X $ hyb. zebra larva, yellow 

 cocoon; produced 97 zebra larvae spinning 25 white and 24 

 salmon cocoons, and 20 white larvae spinning 7 white and 

 9 salmon cocoons. 



F2 ^ Hyb. zebra larva, white cocoon X 5 hyb. zebra larva, yel- 

 low cocoon ; produced zebra larvae spinning 60 white and 45 

 salmon cocoons, and 35 white larvae spinning 14 white and 

 17 salmon cocoons. 



F2 ^ Hyb. zebra larva, yellow cocoon X $ hyb. zebra larva, white 

 cocoon ; produced 140 zebra larvae spinning 40 white and 63 

 salmon cocoons, and 68 white larvae spinning 21 white and 

 28 salmon cocoons. 



