The Hybrid BistoninEe 



PL. n 



Vu.. 



Gi'nitali:i hiiloTfci Cf. 



('" 



{'■) 



Fie. 20. — (rt) Antcnnas of /. graciiriii. 

 (I>) Antcnnae of /. HaVua. 

 {c) Antcnnas of /. alpina. 



