46 



217. AMERICAN MEROMYZA. 



Meromyza americaua Fitcli. 



[Injured wheat stalks, adult flies: figures of injured stallis, larva and pupa from Riley's 1st 

 Mo. Heport.] 



Remedies: Destruction of infested stalks; rotation of crops. 

 Chief Articles: Riley, 1st Rept. Ins. Mo., p. 159-161 ; Lintner, 1st 

 Rept. Ins. N. Y., p. 221-227; Forbes, 13th Rept. Ins. 111., p. 13-29. 



218. OSCINIS sp. 



[Injured wheat and adult fly.] 



219. CHLOROPS PROXIMA Say. 



[Injured wheat, pupee, adults.] 



Chief Article: Comstock, Rept. Dept. xVgric, 1879, p. 257-258. 



220. HESSIAN FLY. 



Cecidomyia destructor (Say.) 



[Injured stalks of wheat, barley and rye; pupteand adults: figures in all stages from Packard's 

 Report.] 



Remedies: Late planting; selection of wheat; rolling and pasturing 

 to sheep. 



Chief Article: Packard, Bull. No. 4, U. S. Ent. Comm., pp. 43. 



221. STALK BORER. 



Gortyna nitela Guen. 



[Injured wheat stalks, larva, chrytsalids and adult moths.] 



See No. 199. 



222. GRASS -WORM. 



Laphygma frugiperda Sm. & Abb. 

 Syn. Prodema aidumnalls Riley. 



[Larv3, chrysalids and adult moths.] 



Remedies: Early jilowing. 



Chief Articles: Riley, 3d Rept. Ins. Mo., p. 109-116; Amer. Ent., 

 V. 2, p. 363-365. 



223. "WHEAT-HEAD ARMY-WORM. 



Leucania albilinea Guen. 



[Larva, chrysalis and adult moth : figuresof eggs, larva and adult from Riley's 9th Mo. Report.] 



Parasites: • 



223a. Tachina anonyma Riley. 



[Adult.] 

 2286. Anomalon apicale Cress. 



[Adult.] 

 Remedies : Late plowing. 

 Chief Article: Riley, 9th Rept. Ins. Mo., p. 50-57. 



