INJURIOUS INSECTS. 
25 
THE SPOTTED BEAN-BEETLE 
(Epilachna corrupt a Mills.*) 
IMPORTANT REFERENCES. 
1883.—Riley. C. V. Rural New Yorker, p. 42. 
1883.—Riley, C. V. American Naturalist, p. 198. 
1883.—Riley, C. V. Prairie Farmer, p. 87. 
1889. —Riley and Howard, Insect Life, pp. 114, 377. 
1890. —J. F. Wielandy, Insect Life, pp. 121, 419. 
Th is beetle out-does all other insect pests that 
the bean crop has to contend with in the West. It 
is to the bean what the old “Colorado Potato 
Beetle” used to be to the potato crop in destruc¬ 
tiveness, and it is much more difficult to manage 
from our present knowledge as to the remedies to 
be applied. 
The beetle (Fig. n a) is oval in outline, nearly 
one-third of an inch in length by one-fifth of an 
inch in breadth, of a light yellow to a yellowish 
brown color and has eight small black spots on 
each wing cover. The mature larva is about 
the same in length as the beetle, is of light yel- 
*Determined for me by Mr. L. O. liowarcl, Div. of Entomology, Washington’ 
n. c. 
