PLATE 15 



Masked Heterozy^ote. 

 Breeding true In aspe-ct 

 . /ike L. undeolm/inGata . 



Norma/ He.te.rozy goto. ^ g/\^es on/y typical F^ array 



Masked He-terozy^ote. 

 BrCGcZ/ng true in aspect 

 ///re L. si^na tico///s. 



L, u nd &cim iineatst. 



L. si^n atico //is . 



To SHOW RESULTS OBTAINED IN CROSSING L. sigriaticollis AND L. undecimlineata when Ac values are 



DIFFERENT AND WHEN CONDITIONS OF THE MEDIUM ARE THOSE DESCRIBED IN THE TEXT. 



JlTLrUS niEN LITT-T., N-A', 



