PLATE 17 



F, - 



F, - 



F, - 



F, - 



IF, - 



ffn 



- F, 





V 



Synthetic homozygous acting 



_ race with form index 2.950 



tested by crossing with L. mul- 



titsenlata.biotype melanothorax 



Graphic Presentation of Test Reactions in L. multittEniata, showing the Action 

 OF certain Form Determiners. 



Jtlt-tUS BTETT nrrTT.. >j-. -v^. 



