87 



27. The Root Web Worm. 



{Gramhus zeellus, Fernald.) 



ISSe"^. Fernald, C. H. — Cramhus zeellus. Can. EiiK XVII., 55. Origi- 

 nal description Habitat : Maine, Pennsylvania, West Vir- 

 ginia, Illinois, Missouri. Bred from Indian corn by Prof. 

 S. A. Forbes. 



Forbes, S. A.— The Pioot Web Worm. Illinois Crop Rep., 

 May, 1885, p. 38. This is a new insect pest seriously in- 

 juring young corn in May and June. Larva and moth de- 

 scribed. Manner of affecting plant. Dates and places of 

 taking worms. Larva figured. 



Forbes, S. A. — Further notes on the Root Web Worm. Sta- 

 tistical Rep. 111. St. Bd. Agriculture, June, 1885, p. 48, 

 figs. 1, 2, 3. Injurious to corn in Champaign county. Ex- 

 presses doubt as to eggs being laid in spring. Describes 

 nest and character of injury, recommends collecting by 

 hand and advises leaving old hills of Indian corn undis- 

 turbed when replanting. 



F'armers' Review, June 11, 1885. — The Corn Root Worm. Ex- 

 tract from article by Prof. Forbes in 111. Crop Rep. for 

 May, 1885. 



Prairie Farmer, July 11, 1885. — Cramhus zeellus. Figure of 

 imago, larva, silken tube, and affected Indian corn. Nat- 

 ural history and remedies. Compiled from article by Prof. 

 Forbes in 111. Crop. Rep., May, 1885. 



Forbes, S. A. — Cramhus zeellus. 14th Rep. St. Ent. 111., p. 

 1-', pi. I, figs. 1-3. Reported injuries. Original descrip- 

 tion of larva and pupa. Description of imago. Distribu- 

 tion ; life history ; natural enemies ; and artificial remedies. 



29. The Corn Stalk Borer. 

 (Diatnea saccharalis, Fab.) 



Fabricius, J. C. — PhaUena saccharalis. Ent. Syst. III., ii, p. 

 238. Original description. 



CoMSTOCK, J. Henry. — Diatrcea saccharalis. Rep. Com. Agr. 

 1880, pp. 240, 243. P. 240, treated as a sugar cane in- 

 sect. Gives history, habits, life history, amount of dam- 

 age, and remedies. P. 243, first published account of its 

 injuries to Indian corn. Description of egg, larva, pupa, 

 and moth. Three or more generations; hibernates as larva ; 

 injuries five to twenty-five per cent. Remedy, feeding and 

 burning stalks before February. Identity of the insect is 

 not positive. 



