CACTUS-FEEDING INSECTS AND MITES 7 



and the West Indies. Other genera or groups with several cactus species 

 are: the curculionid genus Cactophagus LeConte, in southern United 

 States to Central America; the coreid genus Chelindca Uhler, from the 

 Canadian border south to Venezuela; the closely related coreid genera 

 Narnia Stal and Leptoglossus Guerin Meneville, covering a wide area 

 from Colorado in the United States to Argentina; and the homopterous 

 genus Dactylopiiis Costa, occurring throughout the cactus regions. 



Roughly 80 percent of the true cactus insects is placed in genera 

 of which all members are restricted to cactus hosts. 



