158 Bulletin Wisconsin National History Society. [Vol. 9, No. 4. 



Eastern Hemisphere. 



Europe: Germany — Prussia (Baden and Ehine) ; Austria (Car- 

 niola and Dalniatia). 



New Zealand : Waikumete and Wellington. 



Java. 



Hawaii : Honomu ; Honolulu ; Olaa ; Kohala. 



The species thus shows a wide distribution but we do not 

 know all of the facts of the case. We do not know enough about 

 the genus to attempt to trace the place of origin of this species 

 nor at the present time would it be profitable to discuss is distri- 

 bution from more important standpoints, namely those of ecology 

 and physicogeography. However, some of the ecological aspects 

 •of its distribution may be obtained from the next paragraph ; its 

 relations to nonorganic factors, in respect to this, seems to me to 

 be of minor importance for food seems to be a factor of more 

 than usual importance in limiting its range. 



HOSTS; 



Just about four years ago Girault (1907) listed the definitely 

 known hosts of this species, then eleven in number ; its synonomy 

 now being known that list should have included eleven others, 

 making a total of twenty-two. A comparatively large number of 

 new hosts have since become of record raising the total number 

 of hosts of this remarkable parasite to forty-five or twice the 

 number formerly known after the synonymic species are included 

 or four times the total of the list published four years ago. Un- 

 doubtedly, all of them are not known to us yet and the species 

 is perhaps continually acquiring new ones. The revised list of 

 its hosts are given herewith : 



