BIOLOGICAL STUDIES ON THREE APHIDID^. 153 



1885. Garman, H. — A contributiou to tlie life history of the corn plant-louse. 



< Fourteenth Rep. State Ent. 111. for 1884, Springfield, pp. 23-33, PI. 

 XII, fig. 4. Same : Trans. Agric. Soc. 111. for 1884, Springfield, vol. 22. 



Review of previous literature and knowledge of the root and aerial forms of 

 Aphis maidis ; nomenclature; descriptions; life hlstorj- ; insects parasitic and 

 predaceous upon it ; including a description of a new ichneumon-fly (Adialiiiiis 

 tnaidaphides n. sp.) parasitic upon this aphis; remedies. 



188G. Forbes, S. A. — Notes on the past year's work. <Can. Ent., London, Ont., 

 Vol. XVIII, August, 1886, p. 177. , 



Brief notes on the corn aphis, including damage by it the past year. 



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



louse. Aphis maidis Fitch. Miscellaneous Essays on Economic En- 

 tomology by the State Entomologist and his Assistants. < Trans. Dept. 

 Agr. III. for 1885, Springfield, Vol. XXIII, pp. 46-48. Separate: Spring- 

 field, 111., 1886. 



Notes on the occurrence of Aphis maidis, aerial form, on crab grass 

 {Panicnm). 



1886. Hunt, Thomas F.— Partial economic bibliography of Indian corn insects. 

 Miscellaneous Essays on Economic Entomology by the State Entomolo- 

 gist and his Assistants. <Trans. Dept. Agr. 111., Springfield, Vol. 

 XXIII, pp. 117-118. Separate: Springfield, 111., 1886. 



Gives a partial analytical bibliography of Aphis maidis (root and aerial 

 forms). 



1886. Oestlund, O. W. — List of the AphididjT? of Minnesota. < Fourteenth Ann. 

 Rep. Geol. and Nat. Hist. Surv. of Minn., St. Paul, p. 41. Separate : St. 

 Paul, Minn., 1886. 



Lists Aphis maidis Fitch from Minnesota on Indian corn. 



1886. Webster, F. M. — Insects affecting the corn crop. Thirty-fifth Ann. Rep. 



Ind. State Board Agr. for 1885, Indianapolis, Vol. XXVII, pp. 183-184. 



Bibliography of the corn aphis, root and aerial forms. Notes and general 

 discussion. 



1887. Oestlund, O. W. — Synopsis of the Aphididse of Minnesota. <Geol. and 



Nat. Hist. Surv. Minn., St. Paul, Bui. 4, p. 56. 



Gives a description of the winged viviparous female of Aiihis maidis Fitch. 



1888. AsHMEAD, W. H. — Entomological section. <Fla. Agr. Exp. Sta., Jackson- 



ville, Bui. 2, June, p. 6. 



Notes on the appearance of the corn aphis observed on the station grounds, 

 where it was checked by its natural enemies. Description of the winged and 

 wingless viviparous females. Notes on its natural enemies, including descrip- 

 tions of two new species of internal parasites {Aphidius flavicoxa and 

 Pachyneuron matdaphidis) of Aphis maidis. A remedial experiment with a 

 mixture of white hellebore, flour, and water. 



1888. Webster, F. M. — Report on the season's observations, and especially upon 



corn msects. <Ann. Rep. (U. S.) Comm. Agr. for 1887, Washington, 

 D. C, pp. 148-149. Also in Separate Edition, Report of the Entomologist. 

 Rhopalosiphvm nuiidis Fitch. Occurrence in Mississippi and Louisiana in 

 June and July. 



1889. Alwood, W. B. — The corn plant-louse. <The Southern Planter, Rich- 



mond, Va., August, 1889, pp. 116-117. 



Article in response to an inquiry from a farmer in this State (Virginia) 

 who had found the aerial and root forms of the corn aphis troubling his crop. 

 Gives life history and suggests remedy by destruction of fodder and stalks, the 

 plowing up of the stubble in the fall, and the putting of the field in small 

 grain the next year. 



