DIPTERA (Continued; 



erent "be- Astaurow '29 Z.Z.M.A. 10. 



tween strains 



from U.S.A. 



and U.S.S.R. 



4n,8n occur 



in tissue cells. 



Type R* 



D. takahashii 



4 V's+2 J's (o) 



Y-r Ward '49 



4 V's44 r's+2 S's (o_) 



Y=r ■ 



2 V»s+4 v»s-/4 R's (9) 



Y=J " 



6 V's+4 J's (0) 



Y»R " 



2 R's-f8 r's44 S's (o_) 



Y=R " 



2 J's+2 j's+2 v's+4 r's+2 S's 

 11 



4 V»sf2 R's-f2 S's ($) 

 Y«V " 



Univ. Texas Publ. 4920. 



*Tyres from R to DD are those newly established in recent years. 



-211b- 



