154 Bulletin 142. 



1893. Washburn. Bull. 25, Oregon Expt. Station, pp. 1-8. Record of 

 original observations which form one of the most important and accu- 

 rate contributions to the literature of the habits of this insect yet 

 made. The egg figured for the first time. 



1893. Lodeman. Bull. 60, Cornell Expt. Station, pp. 265, 273-275. 

 Experiments to show that usually two applications of poisons are all 

 that are necessary or profitable in New York. 



1893. Riley. Bull. 23, Maryland Expt. Station, pp. 71-77. Very good 

 general account of habits, remedies, and especially of its enemies. 



1893. Lintner. Ninth Rept. on Insects of N. Y., pp. 338-342. Detailed 

 account of the work of the second brood of larvai in N. Y.; and a dis- 

 cussion of the prevalent ideas regarding the egg-laying habits of the 

 insect. 



1893. Coquillett. Bull. 30, Div. of Ent. of U. S. Dept. of Agr., pp. 

 30-33. Notes on life-history, supposed enemies, and methods of 

 combating the insect in California. 



1894. Smith. Entomological News, Vol. V., pp. 284-286. Records 

 breeding experiments which indicate but one brood of the insect at 

 New Brunswick, N. J. 



1894. Marlatt. Insect Life, Vol. VII., pp. 248-251. Evidence from 

 various sources to show that insect is usually double-brooded. 



1894. Schilling. Der Praktische Ratgeber, Vol. 9, pp. 121-123; 133- 

 135 ; 141-143. The best discussion of the insect from a practical and 

 economical standpoint in the German literature. One brood. 



1894. Sempers. Injurious Insects, pp. 57-59. Brief general account. 



1895. Marlatt. Proc. Ent. Soc. of Wash., Vol. III., pp. 228-229. Sug- 

 gests that Merriam's life-zones may explain and determine the varia- 

 tion in and number of broods of the insect. 



1895. Goethe. Bericht d. Kgl. Lehr. fiir Obst. Wein. und Gartenbau, 

 pp. 22-25. Records original observations (trom breeding-cage experi- 

 ment) (ui the egg and on the habits of the young larvae, with illustra- 

 tions and descriptions. First definite account of these phases of the 

 insect to appear in any foreign literature. 



1S95. Weed. Insects and Insecticides, Second Edition, pp. 88-S9. 

 Brief general account. 



1896. Lounsbury. Rept. Gov. Ent. for Cape of Good Hope, for 1895, 

 PP* 33-3^- Brief account. 



1896. Bos. Tijdschrift over Plantenzieketen, Vol. XII., pp. 52-74. Very 

 good account compiled from the writings of Schilling and Goethe. 



1896. Slingerland. Michigan Fruit Grower, Vol. V., p. 8. Paper read 

 before Mich. State Hort. Soc, Detailed account of original observa- 



