154 MISCELLANEOUS PAPERS. 



1889. Forbes, S. A.— Fifteenth Report of the State Entomologist of Illinois, for 

 188(3. <Trans. Dept. Agr. 111. for 188(3, Springfield, Vol. XXIV, pp. 

 5, 6. Separate: Springfield, 111., 1889. 



Mention of Aphis maidis as being very injurious to corn, and observations 

 made on the winter liistory of tlie root form. 



1889. Marten, J. — The corn-root aphis. <Frairie Farniei*, Chicago, 111., October 

 12, 1889, p. 660, 4 figs. 



Short general accounts of both the root and aerial forms. 



1889. Webster, F. M. — Notes on some injurious and beneficial Insects of Aus- 



tralia and Tasmania. < Insect Life, U. S. Dept. Agr., Washington, 

 D. C, Vol. I, No. 12, p. 362. 



Aphis maidis observed in conspicuous numbers on sorglium plants growing 

 on the farm of the Agricultural College of South Australia. It is sometimes 

 so abundant on plants as to render the latter obnoxious to stoclc. 



1890. Forbes, S. A.— Sixteenth Report of the State Entomologist of Illinois, 



for 1887 and 1888. <Trans. Dept. Agr. 111., Springfield, Vol. XXVI, 

 p. XII. Separate: Springfield, 111., 1890. 



Notes scarcity of aerial form of the corn aphis the past two years. 



1890. Kent. G. H. — Notes of the season from Mississippi. (Roxie, Miss.) 



<Iusect Life, U. S. Dept. Agr., Washington, D. C, Vol. II, No. 9, p. 283. 

 The corn aphis was observed in large groups on corn and sorghum plants. 



1891. Forbes, S. A. — Seventeenth Report of the State Entomologist of Illinois. 



<Trans. Dept Agr. 111., Springfield, Vol. XXVIII. Separate: Spring- 

 field, 111., 1891. 



Colored plates of pupa, winged, and wingless forms of Aphis tnaidis Fitch. 



1891. McCarthy, Gerald. — Some injurious insects <N. C. Agr. Exp. Sta., 



Raleigh, Bui. 78, p. IS. 



Brief notes on the corn plant-louse. 



1891. Weed, C. M. — Insects and insecticides. <Hanover, N. H., pp. 216-217, 

 fig. 10. 



Brief account of known life history of Aphis maidis, with insects parasitic 

 upon it. Remedies. 



1891. Williams, T. A. — Host plant list of North American Aphididse. <Univ. 



Nebr. Dept. Ent., Lincoln, Spec. Bui. 1, pp. 9, 19, 23. 



Lists the food plants of Aphis maidis Pitch as corn, cultivated Owalis, and 

 cultivated sorghum. 



1892. Bruner, L. — Report of the Entomologist. <Ann. Rep. Nebr. State Board 



Agr. for 1891, Lincoln, pp. 299-300, fig. 75. 



Aphis maidis Fitch attacks corn in overwhelming numbers at times. Gives 

 cliaracters distinguishing it from the root-aphis (Aphis maidl-radicis) . 



1892. OsBORN, Herbert. — Catalogue of the Hemiptera of Iowa. <Proc. la. 

 Acad. Sci., Des Moines, Vol. I, pt. 2, p. 129. 



Lists Aphis maidis Fitch and mentions that it has been reported to him as 

 infesting corn in Iowa. 



1S92. Webster, F. M. — Early published references to some of our injurious 

 insects. < Insect Life, U. S. Dept. Agr., Washington, D. C, Vol. IV, 

 Nos. 7 and 8, p. 264. 



Gives references to the original descriptions of Aphis maidis, root and 

 aerial forms. 



