578 Report of the Entomologists of the 



1866. Walsh, B. D. Practical Entomologist, vol. V, pt. 1, p. :M. 



Comparative character of Eriosoma (Schixoneura) lani- 

 gera and Pemphigus pyH [=^ScMzoneura lanigera]. 



1867. Walsh, B. D. Prairie Farmer, 1867, pp. 358-359. Rav- 



ages and means against Pemphigus pyri [^=Schizoneura 

 lanigera] . 



Walsh, B. D. First annual report on the noxious and ben- 

 eficial insects of the State of Illinois. 



Riley, C. V. Prairie Farmer, 15th June, 1867, p. 397. 

 Descriptions, life-history and means against. 



Riley, C. V. Ihid, December, 1867, p. 389. Means against 

 root and stem forms. 



1868. Walsh, B. D. Amer. Ent., vol. V, No. 1, pp. 54-55. Hot 



water as a means against; life history; nature of in- 

 juries to roots; natuTal enemies; remedies. 



Walsh, B. D. and C. V. Riley. Amer. Ent, vol. V, No. 1, 

 p. 60. Means against. 



*Riley, C. V. Prairie Farmer, 22d Feb., 1868, p. 117. 

 Answer to inquiry of C. S. J. Schizoneura lanigera not 

 the cause of " rotten root." 



1869. Riley, C. V. First Missouri Report, pp. 118-123. Re- 



marks on rot in roots infested with woolly aphis; life 

 history and descriptions, together with technical de- 

 scription of winged form. Referred to genus Eriosoma. 

 Natural and artificial remedies, the former including 

 three predacious insects (one, a new species, Pipiza 

 radicum, is described); and the latter hot water, and 

 mulcliing to bring the lice to the surface of the ground. 

 Walsh, B. D. and C. V. Riley. Amer. Ent., vol. V, No. 1, 

 pp. 81-84. Life history and descriptions; natural ene- 

 mies and means against; two fonns described. 

 i870. *Riley, C. V. Amer. Ent. and Bot., June, 1870, vol. II, p. 

 246. Answep to enquiry of B. M. McKinstry; ravages 

 of and means against Schizoneura lanigera on roots of 

 young apple-trees. 



