spots on the thorax, and a broad blackish stripe along the back on 

 each side. Between these stripes the yellow ground color is divided 

 by a very narrow black line which runs along the middle of the back 

 where the wing covers meet. At the front end of the two strips of 

 yellow on the back is a black spot. Altogether the beetle somewhat 

 resembles a large Striped Cucumber Beetle. 



G. I.— THE 



b and 



ELM leaf-beetle: i7, eggs; ^, larvae ; c, adult ; i?, eggs ; ^, larva ;/, pupa ; /!•, beetle; a, 

 c, natural size; e,g,j'd.nd k, much enlarged. — From U. S. Department of Agricultuie. 



FOOD PLANTS. 



The food of the elm leaf-beetle seems to be limited to the elm 

 though it has been known to deposit its eggs on one or two other 

 plants, perhaps under exceptional conditions. Among the elms the 

 English elm Ubnus campestris and its variety the Camperdown elm 

 are most preferred, though after the pest has become established the 

 American elm Uhnus ainericana is also attacked. 



