1 882.] Entomology. 249 



ous insect till the present year. That a beetle is quite liable to be 

 overlooked by coleopterists, although quite injurious to some cul- 

 tivated plants, is not only probable, but has often occurred. 

 Coccotorus scuUltaris which injuriously affects the plum; Tylo- 

 derma fragaria which depredates on the strawberry plant ; and 

 Hylesinus trifolii which is so injurious to clover, are examples 

 among many which occur to us of species very common on culti- 

 vated plants, yet rare in collections. The same is equally true in 

 other orders of insects. A notable instance is found in the 

 Hessian fly which, though more or less injurious every year in 

 some of our wheat-producing sections, is yet so rare in collections 

 that Dr. Packard had difficulty in procuring specimens to figure 

 for his bulletin on the species. 



There is tfie other alternative, however (which is also not so 

 improbable), that the two specimens that have remained solitary 

 so many years in the largest American collection of Coleoptera, 

 may really have come into the country through European ex- 

 changes, especially as it is known that Dr. Melsheimer did, in 

 some instances, mix up European with American species. 



It is impossible to say whether this Phytonomus will spread 

 further west or not. The encouraging presumption, however, 

 is, if we may predicate upon analogy, that it will not, since we 

 recall no very injurious beetle introduced from Europe (excluding 

 those feeding upon stored products) which has spread over the 

 whole country, the most prominent examples of such introduced 

 species, Criocer, \ a /> >. ?- ■', Gah ruca 1 />:' '/<•/< na, etc., being yet 

 confined to the Atlantic coast. 



Our experience and observations this winter confirm the opinion 

 already expressed, that this Phytonomus hibernates principally in 

 the young larva state, and that any mode of winter warfare that 

 would crush or burn these larvae hibernating in the old stalks 

 would materially reduce the depredations of the species the 

 ensuing summer. Clover stubble is, however, not so easily burned 

 in winter, and whether rolling could be advantageously employed 

 will depend very much on the smoothness of the field and other 



As an interesting fact in connection with imported clover 

 enemies we would mention that several species of the Curculionid 

 genus Sitones, especially 5. jltfvescens and lineellus, which in 

 Europe are injurious to clover and lucern, and which have long 

 since become naturalized in our country, have never been reported 

 here as injurious though they occur quite commonly in some 

 localities. 1 — C. V. Rilcv. 



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