Studies in the Hybrid Bistoiiinae. IV 



Crosses in which tlie two Sexes appeared in Proportions not requiring 



Particular Discussion. 



Images 



Poecilopsis pomonaria 



L. hirtaria (English) 



P.isabellae 



P. lapponaria ... 



L. hirtaria 



P. isabellae 



P. pomonaria 



P. pomonaria 



P. lapponaria ... 



P. rachelae 



L. hirtaria ' ... 



L. hirtaria 



L. hirtaria 



L. hirtaria 



P. pomonaria ^ x P. isabellae $ 

 P. isabellae (J x P, pomonaria ^ 

 P. isabellae 



P. pomonaria (J x P. isabellae § 

 P. isabellae ^ xP. pomonaria j 



Male 



Lycia hirtaria 



P. pomonaria 



L. hirtaria 



L. hirtaria ... 



Nyssia zonaria 



P. pomonaria 



P. isabellae 



N. zonaria ... 



N. zonaria ... 



N. zonaria ... 



P. pomonaria ^ y L. hirtaria 5 



L. hirtaria^ x P. pomonaria^ 

 f (L. hirtaria ■$ xP. pomonaria $ ) ^ 

 \ X L. hirtaria $ 



( (P. pomonaria (^ xL. hirtaria^ ) (J 

 \ xL. hii-taria $ 



P. pomonaria ^ x P. lapponaria $ 



P. pomonaria /^ x P. isabellae $ 



P. pomonaria ^ x P. isabellae $ 



P. pomonaria ^ x P. isabellae $ 



P. isabellae cj x P. pomonaria ^ 



115 



123 



103 



113 



Crosses Yielding Males only. 

 Female Male 



N. zonaria ... L. hirtaria ... 



N. graecaria L. hirtaria ... 



N. zonaria ... P. pomonaria 



N. zonaria ... P. lapponaria 



N. zonaria ... P. isabellae... 



N. zonaria ... P. pomonaria c^ x P. lapponaria $ 



Crosses Yielding Abnormally a small percentage of Females. 



Female Male Males Females 



N. zonaria ... P. pomonaria (inhred) 71 7 



N. zonaria ... P. lapponaria (inhied) ... ... 62 3 



N. zonaria ... P. pomonaria^ x P. isabellae^ 17 1 (half-sized) 



Cross giving an Abnormal Number of Males. 



Female Male Males Females 



L. hirtaria (Scotch) P. pomonaria 190 14 



Crosses Yielding the Sexes almost equal in Numbers but ivith Odd Intersexes. 



Female Male Males Females Intersexes 



P. lapponaria P. pomonaria 38 39 1 



P. lapponaria P. pomonaria About equal 1 



Cross Yielding Males and Intersexes only. 



(1) 

 (2) 



Female 

 iV. zonaria 



Male 

 P. rachelae 



Cross giving only Intersexes. 



Female Male 



•- (P. pomonaria $ x L. hirtaria ^ ) P. pomonaria 



* In later experiments figures approaching equality have been obtained, the totals being 



87^^,79? ?. 



t 



