THE BEAN LADYBIRD. 



DISTRIBUTION. 



The bean ladybird occurs in the States of New Mexico, Arizona, 

 Colorado, and Texas. In the last mentioned State it is restricted 

 to localities in the western part. It is also said to occur in Kansas 

 and Arkansas but not as a pest. There is a single record of a beetle, 

 presumably- a "chance find," having been taken at Ogden, Utah, but 

 it is not positively known that the species breeds in that State. 



The bean ladybird, as has been stated, is to the bean industry in 

 the West what the Colorado potato beetle is to the potato crop in 

 the East, and its origin is obviously the same — Mexico, where it 

 is widely distributed. It is also found throughout Central America. 

 It has been observed at elevations of from 3,000 to 7,000 feet above 

 sea level in New Mexico, and of about 4,000 to approximately 

 5,000 feet in Colorado. 



Fig. 2. — Map showing 



known distribution of the bean ladybird in the United States, 

 June 1, 1919. 



According to the observations of Dr. C. P. Gillette, State entomolo- 

 gist of Colorado, the species inhabits the foothills of the Eocky 

 Mountains, seldom straying far out on the plains, with the exception 

 of down the Arkansas Valley in Colorado. Further details in 

 regard to its distribution in that State are furnished on page 13. 



The known distribution of the bean ladybird in the United States 

 is indicated in figure 2. 



DANGER OF FUTURE SPREAD. 



In regard to the future distribution of this pest it must again be 

 compared with the Colorado potato beetle, first because of its ob- 

 viously similar origin. It may have been introduced at an even 

 earlier date than the latter, since the cliff dwellers in the region 

 which the beetle inhabits in the United States included tepary beans 



