380 



THE CANADIAN ENTOMOLOGIST. 



the problem in hand, and since the species of these genera are so numerous 

 as to obscure any contradictory evidence afforded by other genera, the 

 distribution by percents of the 970 species of Solamim^ the 412 of Cassia 

 and the 445 of all other genera may be indicated separately as in the 

 accompanying table C. 



Table C. 



Species of Solanum and Cassia compared with others of same type. 



It is evident from these figures that Solanum and Cassia have a very 

 similar distribution, with which the species of the 47 other genera of this 

 type are also in close agreement. 



Summarizing the data presented in this table, it is found that tropical 

 America has 62.5 per cent, of all the 1,827 species of the Solanum-Cassia 

 type, the Indian region 8.9 per cent , the Australian region 10. i per cent., 

 and the extra-tropical South American region 5.4 per cent. The average 

 for the remaining ten regions is 1.5 per cent. 



(To be continued.) 



