72 



rarely breeds in corn, while tlie breeding? plant of sciilpiilis is 

 unknown, and the fact that it is sometimes taken free in fall 

 makes it unlikely that the adult hibernates commonly where the 

 larva feeds. 



Until the needed facts concerning the less known species are 

 ascertained, we can only supjgest that the encouragement of the 

 prairie birds, — especially such as the black-throated bunting, the 

 meadow lark, and the quail, which feed mostly upon insects col- 

 lected on the ground, — the draining and cultivation of swampy 

 tracts covered with coarse grass, and the insecticide measures 

 common to an intelligent agriculture,— such as the burning of places 

 of resort for hibernating insects, — will be suitable safeguards 

 against these species. In case their attack is anticipated or early 

 detected, the application of Paris green or London purple about 

 the base of the plants would in all probability protect the corn, — 

 a measure of easy application and not excessively expensive. 



ECONOMIC BIBLIOGKAPHY. 



808. Olivier, A. G.- -Entomologie, ou Historie Nat- 

 urelle des Insectes, V. 



Fabricius, J. C— Systema Eleutheratorum, II., 429. 



Germar, E. F. — Insectorum Species Novse aut Minus 

 CognitiB, 301. 



Say, Thomas. — Descriptions of New Species of Curculi- 

 onites of North America. Ed. LeConte, I. 



ScHoNHERR, C. J. — Genera et Species Curculionidum, 

 IV. 



ScHoNHERR, C. J.— Idem, YIIL 



Melsheimer, F. E.— Catalogue of the Described Cole- 

 optera of the United States, 89. 



Glover, Townend. — Keport of the Commissioner of 

 Patents, 67. 



Uhler, p. K — Proceedings of the Academy of Nat- 

 ural Sciences of Philadelphia, VII., 416. 



Fitch, Asa.— The Cultivator, III., 221. 



Fitch, Asa.— Idem, V., 273. 



LeConte, J. L. — J-*roceedings of the Academy of Nat- 

 ural Sciences of Philadelphia, 80. 



Gej>i)eh, Gamble. — Transactions of the New York State 

 Agiitiultural Society, XIX., 331. 



Glover, Townfnd.— Eeport of the Commissioner of 

 Agriculture, 573. 



Lacordaire, Th. — Genera des Col6opt6res, VII., 295. 



Country Gentleman, XXX., 17. 



WAi,sir, B. D.— Piw(i(';i1 Entomolo-Isf, TL, 117. 



1. 



1789-: 



2. 



180L 



3. 



1824. 



4. 



1831. 



5. 



1837. 



6. 



1845. 



7. 



1853. 



8. 



1854. 



9. 



1855. 



10. 





IL 



1857. 



12. 



1858. 



13. 



1860. 



14. 



1863. 



]5. 



1866. 



16. 



1867. 



17. 





