Circular No. 8, Second Series. 



United States Department of Agriculture. 



DIVISION OF ENTOMOLOGY. 



THE IMPORTED ELM LEAF-BEETLE. 



Galerucella luteola Mull. {Galeiueh xanihomeloena Schrank.) 



ft/CH75W4A'je 



Pio. 1 Galerucella luteola: a, eggs; b, larTaB; c, adult, e, eggs (enlarged); /, soulptnre of egg; 



g, larva (eularged) ; h, side -view of greatly enlarged segment of larva; i, dorsal view of 

 same; j, pnpa (enlarged); *, adult (enlarged); I. portion of elytron of beetle (greatly 

 enlarged). From Riley, in Ann. Eept. Dept. Agr. for 1883. 



GENEKAI. APPEARANCE AND MBTHOI> OF WORK. 



The chief Insect enemy of the elm is the imported ehm leaf-heetle, the larvae and 

 adults of which frequently so disfigure the trees as to make them useless for shade 

 and hideous rather than ornamental. The beetle— a small, yellowish-brown insect- 

 appears first and fills the leaves with small irregular holes, while the following 



1 



