117 



71. CicADULA NiGRiFRONS, Forbes. 



1885. Forbes, S. A.—Cicadula nif/rifrons 14th Rep. St. Ent. 111., 

 pp. 22, 67, pi. V, tig. 3. Original description. Food plants : 

 wheat and Indian corn. Occasionally in sufficient num- 

 bers to injure latter. 



72. CiCADULA QUADRILINEATUS, ForbeS. 



1885. Forbes, S. A.—Cicadida quadril'meatus. 14tli Eep. St. Ent. 

 111., pp. 22, 68, pi. V, tig. 4. Original description. Food 

 plants : wheat and Indian corn. Occasionally in sufficient 

 numbers to injure Indian corn. 



73. Macropsis nobilis. 



1885. Forbes, S. A.— Macropsis nohilis. 14th Rep. St, Ent. 111., p. 

 22. Occasionally occurs in sufficient numbers, in June and 

 July, to injure young Indian corn plants. 



Family Aphidid.e. 



74. The Corn Plant Louse. 



[Aphis maidis. Fitch.) 



1856. Fitch, A^K.—ApJiis maidis. 2d Rep. Ins. N. Y. pp. 318-320. 

 Original description of aerial larva and wingless and winged 

 females. Mentions the occurrence of the serial form on 

 Indian corn and predicts that it will probably multiply 

 at times sufficiently to do much injury. 



1863. Walsh, B. D.— Idem. Proc. Ent. Soc. Phila., I., 300 

 wingless ? fig. 3, winged 5 tig. 1. (On the genera of AphidaB 

 found in the United States.) Description of wingless and 

 winged females of root form. 



1865. Walsh. B. D.— The Corn Root Louse. Trans. 111. St. Agr. 

 Soc. v., pp. 491-497. (A New Enemy of the Corn.) Rela- 

 tion of ants to plant lice. Occurrence of corn plant louse 

 near Rock Island. 



1878. Thomas, Cyrus. — ApJiis maidis. 7th Rep. St. Ent. 111., pp. 

 75-78, tig. 18. Description of wingless and winged individ- 

 uals found on tassels. Statement froln correspondents as 

 to injuries. Remedies. 



1880. Thomas, Cyrus.— Corn Aphis. 9th Rep. St. Ent. 111., p. 2. 

 Root form most injurious. Recommends rotation of crops, 

 thorough fall plowing and turning under strong lime. 



1882. BoARDMAN, E. R. — Aphis maidis. Stark County News. Gen- 



eral accounts of its life history. Rotation advocated as the 

 most effectual remedy. 



1883. Forbes, S. A.— Idem. A Lecture on Insects Affecting Corn, 



pp. 12-14. Relation of ants to corn plant lice. Known 

 life history. 

 Popenoe, E. a. — The Corn Plant Louse on Cane. 3d Bien- 

 nial Rep. St. Bd. Agr. Kan., YIII., 617. Relation of the 



