138 MISCELLANEOUS PAPERS. 



ISSO. Thomas, Cyrus. — Niutb Report of the State Entomologist of Illiilois. 

 <App. : Trans. Dept. Agr. 111. for 1879, Springfield, Vol. XVII, pp. 2-3. 



Mentions both aerial and root forms (especially the latter) of the corn aphis 

 as being quite injurious the past season 1 1870). Recommends rotation of crops, 

 thorough fall plowing, and turning under strong lime. 



3882. BoARDMAN. E. R. — Coru-apliis. < Stark Conuty (111.) News, December 

 21, 1882. 



General life history of the root form ; remedies. 



1882. BoARDMAN, E. R. — Economic Entomology. <Stark County (111.) News, 



December 28, 1882. 



Additional notes on the life history of the corn root-aphis. 



1883. Forbes, S. A. — A lecture on insects affecting corn. <Bloomington, 111., 



pp. 12-14, figs. I, III, IV. 



Gives known life history of both aerial and root forms of the corn aphides ; 

 also relation of ants to the corn root-aphis. 



1883. Forbes, S. A.— Twelfth Report of the State Entomologist of Illinois 



<App. : Trans. Dept. Agr. 111. for 18S2, Springfield, Vol. XX, pp. 5-6, 44. 



The corn plant-louse (probably referring to the root form) was destructive 

 to corn the previous year (1883). Transferring of Aphis maidis by ants is 

 mentioned. 



iSS-'t- Forbes, S. A. — Thirteenth Report of the State Entomologist of Illinois. 

 "<App. : Trans. Dept. Agr. 111. for 1883, Springfield, Vol". XXI, pp. 4G-50, 

 n. IV, fig. 13. Separate: Springfield, 111., 1884. 



The root-aphis makes its first appearance upon corn underground late in 

 May or early in June, attacking not only the roots, but likewise the sprouting 

 stem underground. Winged root form was collected May 22 and at several 

 dates in June. It continues to be abundant throughout the month of July. 

 Obtained on sorghum roots July 26 and 31. October 8 was the last date at 

 which it was found. Next year (1883) the first winged root-aphides were 

 obtained June 7 and again July 29. Rotation is given as a remedj". 



1884. Forbes, S. A. — Circular on the corn root-aphis and Hessian fly. <I11. 



Crop Prospects, Springfield, May, 1884, p. 48. Reprint : Ftirmers' Re- 

 view, Chicago, 111., June 5, 1884. See Prairie Farmer, Chicago, 111., 

 June 14, 1884. 



Requests for information concerning injuries by Aphis maidis (f), root form. 



1SS5. Garman, H. — A contribution to the life history of the corn plant-louse. 

 <Fourteenth Rep. State Ent. 111., Springfield, pp. 23-33. Same: Trans. 

 Dept. Agr. 111., Springfield, 111., Vol. XXII, 188.5. 



Previous literature, descriptions of the root and aerial forms, life history, 

 parasitic and predaceous insects, and artiflcial remedies. 



1886. Forbes, S. A. — Notes on the past year's work. <Can. Ent., London, Ont., 

 Vol. XVIII, p. 176. Also: Ent. Amer., Brooklyn, N. Y., December, 1886, 

 Vol. II, p. 175. 



Notes on Aiihis maidis, root form. 



1886. Garman, H. — A second contribution to the life-history of the corn plant- 

 louse, Ajjliis maidis Fitch. Miscellaneous Essays on Economic Ento- 

 molog.y by the State Entomologist and his Assistants. < Trans. Dept. 

 Agr. Ill, for 1885, Springfield, Vol. XXIII, pp. 46-48. 



First record of the occurrence of the oviparous female (October 7), root 

 form, and descriptions of it. Also notes on relation of the root-apliis and 

 ants. 



