378 LANGURIA MOZARDI. CLOVER-STEM BORER. 



perish. This supposition seems more probable in that this 

 species has varied so far in its habits from those of its near con- 

 geners, which are all bark or wood eaters so far as I know. It 

 is quite probable that summer plowing, followed by thorough 

 li arrowing, might destroy the insects at work in the clover. If 

 such were the case it certainly would be a wise proceeding. 



Prof. I. P. Koberts says: "In Central New York, of late 

 years, we mow the seeded land but once and pasture in the fall 

 the abundant second growth. Since 1878 the clover-root beetle 

 has worked upon the clover to such an extent that it invariably 

 fails the second year. This has caused us to change from a five 

 to a four year rotation, viz. : hay, corn, oats and wheat." 



Languria Mozardi, Fabr., Clover-stem Borer. 



Order Coleoptera: Family Erotylidce. 



Latreille, Gen. Crust, etlns. III., p. 66, 1807. 



Say, Am. Entomology, III., 1828, 111. 



Lamarck, An. sans vert., deux. edit. IV., p. 486, 1835. 



Melsheimer, Cat. Coleop. U. S., p. 47, 1853. 



LeConte, Proc. Acad. Nat. Sci. Phil. VII., p. 161, 1854. 



Oliver, Entomol. V. p. 464, 111. 



Crotch, Trans. Am. Ent. Soc. IV. p. 350, 1873. 



Le Baron. 4th Ann. Rept. Ins. 111. p. 181, 1874. 



Comstock, Ann. Rept. Comm. Ag. 1879, p. 199, HI. 1880. 



Saunders, Ont. En. Rep. Vol. XII. p. 44, 1881, 111. 



Lintner, Ann. Rep. N. Y. Ag. Soc., 1882, p. 196, 111. 

 The clover-stem borer, though not very common, is widely 

 distributed throughout the country. It is found in Michigan, 

 Canada, New York, and south to Washington and west to Kan- 

 sas. Indeed it is mentioned as far south as Louisiana. Prof. J. 

 H. Comstock was the first to discover and describe its full life 

 history. Though not as yet known to be a serious pest, from its 

 wide distribution we may suggest that it does more harm than is 

 suspected, as a great many plants in a clover neld could be de- 

 stroyed and yet not be missed. Even though not as yet alarm- 

 ingly injurious we cannot tell when it may become so. In its- 



