THE MEXTCAN COTTON-ROLL WEEVIL. 169 



BIBLIOGRAPHY. 



This bibliography includes only the more important writings which 

 have^been published in permanent form. In the preliminary part 

 of this bibliography a special synopsis is given of the contents of pub- 

 lications, more particularly to outline the history of the cultural 

 method now recognized as of supreme importance in the control of 

 the boll weevil. No attempt is made to give a synopsis of the later 

 titles. For a complete annotated bibliography see Circular No. 140, 

 Bureau of Entomology. 



1843. Boheman, C. H. — Genera et species Curculionidum cum synonymia hujus 

 familise ed. C. J. Schonherr, vol. 5, pt. 2, pp. 232-233. 

 The original description of Anthonomus grandis. 



1871. Suffrian, E. — Verzeichniss dervon Dr. Gundlach auf derlnselCuba gesam- 

 melten Riisselkafer.<Archiv f. Naturg., vol. 37, Jahrg. 13, pt. 1, pp. 130-131. 

 Contains the record of a specimen from Cardenas and one from San Cristobal, in Cuba. 

 1885. Riley, C. V. — Report of the Commissioner of Agriculture for 1885, p. 279. 



Contains the sentence "Another very large species, A. grandis Boh., we have reared at this depart- 

 ment from dwarfed cotton bolls sent from northern Mexico by Dr. Edward Palmer." This is the 

 first published record of the food plant and method of injury of the species. 



1891. Dietz, W. G. — Revision of the genera and species of Anthonomini inhabiting 

 North America. <Trans. Amer. Ent. Soc, vol. 18, p. 205. 



The species is here reported from Texas. It has been shown, however, that this was an error. 

 (See Insect Life, vol. 7, p. 273.) 



1891. Gundlach, Juan. — Contribucion a la entomologia Cubana, vol. 3, pt. 5, p. 285. 



Mentions occurrence in Cuba. 



1894. Howard, L. O. — A new cotton insect in Texas. <Ins. Life, vol. 7, p. 273. 



The first authentic account of the occurrence of the species in the United States, and some state- 

 ments regarding its life history. 



1895. Howard, L. O. — The new cotton-boll weevil. <Ins. Life, vol. 7, p. 281. 

 1895. Townsend, C. H. T. — Report on the Mexican cotton boll weevil in Texas 



(Anthonomus grandis Boh.).<Ins. Life, vol. 7, no. 4, pp. 295-309, figs. 30, 

 31, March. 



An important preliminary paper giving valuable data on life history and habits, an account of its 

 spread from Mexico to Texas, and its extent in Texas at that time. In the consideration of remedies 

 are suggested the cutting and burning over of the cotton fields in winter, the abandonment of cotton 

 growing over the region then infested, and the maintenance of a wide zone free from cotton along the 

 lower Rio Grande bordering Mexico, with other suggestions of less practical value. 



1895. Howard, L. O. — The Mexican cotton-boll weevil. <Cir. 6 (second series), 

 Div. Ent., U. S. Dept. Agr., pp. 5, figs. 1-3, April. 



This circular gives the results, substantially, of Mr. Townsend 's field investigations of the insect in 

 Mexico and Texas. The impracticability of the use of poisons is shown, and the collection and 

 destruction of infested bolls and rotation of crops are suggested. English and Spanish editions were 

 issued. 



1895. Rios, J. R. — Aparicion del "picudo" en la Laguna.<El Progreso de Mex., 



Aug. 15, 1895. Reprinted in vol. 4, pp. 811-813, 1897. 



1896. Howard, L. O. — The Mexican cotton-boll weevil. <Cir 14 (second series), 



Div. Ent., U. S. Dept. Agr., pp. 8, figs. 1-5. 



Contains a large amount of additional information relative to distribution, natural history and 

 habits, and naturai enemies and parasites, now worked out with substantial accuracy. Under the 

 head of remedies is the first suggestion of the great importance of the cultural method of control, 

 and especially the early fall destruction of the cotton plants, together with the recommendation of 

 early planting and clean cultivation. Trapping late beetles in fall and over-wintered beetles in early 

 spring is advised, together with the destruction of volunteer plants, the region infested up to this 

 time being fairly within the range of volunteer or seppa cotton. 



