115 



Uhler, p. E. — Blissus leucopterus. List of Hemiptera west of 

 the Mississippi river, p. 4o. Distribution in United States. 



Thomas, Cyrus. — Idem. 7th Rep. St, Ent. 111., pp. 40-71, 

 fig. 10. Description of its various stages. Extended account 

 of injuries. Two broods in northern Illinois ; some evidence 

 of a third in extreme southern Illinois. Hibernation ; mi- 

 grations ; natural agencies which assist in their destruc- 

 tion ; remedies, followed by account of proposed remedies 

 as given by LeBaron in 3d Eep. St. Ent. 111., p. 144. 



Thomas, Cyrus.— Idem. Bui. U. S. Ent. Com. No. 5. Ten 

 figures and map showing distribution. A resume of the 

 present knowledge of its history, characters, and habits, and 

 the means of destroying it or lessening its injuries. 



Thomas, Cyrus. — Temperature and Rainfall as affecting the 

 Chinch Bug. Periodicity in its increase. Amer. Ent. III., 

 240-242. 



Thomas, Cyrus. — The Relation of Meteorological Conditions 

 to Insect Development. 10th Rep. St. Ent. 111., pp. 47-59. 

 Believes there will be but two chinch bug years in seven, 

 corresponding to certain meteorological conditions. 



The Farmers' Review, July 21, 1881.— The Chinch Bug Pest. 

 Wide-spread complaint of injuries from this pest the cur- 

 rent season. Damage most severe on old land. Fertilizers 

 a protection against ravages of the chinch bug. 



Riley, C. V.— Chinch Bug Notes. Rep. Com. Agr., 1881, pp. 

 87-89. Predictions in relation to injury. Injury in spring 

 of 1882. Remedies and preventive measures — irrigation, 

 mentioned. 



Forbes, S. A.— The Chinch Bug in 1882. St. Dept. Agr., 

 Circular No. 92, Illinois Crop Prospects, August 1, p. 77. 

 Reports apparent retardation of hatching and unusual 

 method of attack due to extraordinarily cold, wet, and late 

 spring. Determines experimentally that wet weather takes 

 no injurious effect upon adults. Finds small brown ant, 

 Lasius alienufi, attending young- chinch bugs and feeding 

 upon their fluid excrement. Determines by dissection that 

 a predaceous beetle (Agonoderas comma) feeds upon the 

 young. Report;s presence of bacterial disease among chinch 

 bugs. Mentions successful experiments for killing chinch 

 bugs with kerosene emulsion, at a cost of about three 

 fourths of a cent per gallon. 



Forbes, S. A. — Bacterium, a Parasite of the Chinch Bug. 

 Amer. Nat. XVI., (Oct.) p. 824. Gives account of discov- 

 ery of parasitic disease among chinch bugs, with observa- 

 tions and experim(!nts indicating its connection with a Bac- 

 terium found in the alimentary canal. 

 Forbes, S. A. — Another Chinch Bug Parasite. Prairie Far- 

 mer, Dec. 9, 1882. Brief account of a fungus found de- 

 stroying chinch bugs in corn fields near .Jacksonville, 111. 

 Mention also of the Bacterium parasite Micrococcus insccto- 

 rum, Burrill. Predicts immunity from the chinch bug in 

 1883. 



