The Four-lined Leaf-Bu'g. 247 



ference in the activity of the bugs at different times during the day, 

 either rain or shine. So that the jarring will be equally as effectual at 

 whatever time of day applied . Catch the nymphs in May if possible 

 and thus preserve the plants, especially the herbaceous ones, from the 

 serious ravages of the adults. 



Suimnxary of the preventive methods to he used against this pest. — 

 The arsenites and other poisonous insecticides will have no effect on 

 the bugs, as they feed solely upon the interior juices of the plant. The 

 only other insecticide that promises good results is kerosene emulsion 

 diluted with five parts of water and applied on the nymphs as soon as 

 they appear in May. It will, perhaps, not be so effective on the adults. 

 On large areas we believe it will prove a practicable means of fighting 

 the pest while in the nymphal stages. 



The burning of the garden rubbish in the fall will not affect the pest 

 in the least, nor will there be any gravid females to watch for and 

 destroy in the spring, as the pest winters in the egg securely placed 

 near the tips of the new growth of shrubs, as shown in figure 13. 



The pruning and burning of these tips in which all of the eggs are 

 laid, will prove a practicable and very efficient means of fighting the 

 pest. The pruning can be done at any time between August 1st and the 

 first of May following. 



Probably the best method for general practice, especially against the 

 adults on herbaceous plants, will be to capture the bugs by jarring 

 them into a dish partly filled with kerosene and water. On currants, 

 goosberries, sage and other shrubs one should not wait until the adults 

 appear but capture the nymphs in May. 



Thus, there are three practicable methods by which this pest can be 

 controlled: kerosene emulsion for the nymphs; destruction of the egg 

 by pruning; and the capture of the nymphs and adults by jarring into 

 receptacles where they are destroyed. Circumstances will largely 

 determine which method will prove the most practicable in specific 

 cades. 



Bibliography and Stnonomt. 



Lygaeuslineatus,¥di\iv\(i\\x», Ent. Syst. Suppl. (1*798), p. 541, No. 

 324; Syst. Rhyng. (1801), p. 234, No. 152, original descriptions; Jack, 

 J. G., Gar. and For., Sept. 10 (1890), brief. 



Capsus Avittatus, Say, Heterop. Hemip., p. 20 (1832), description 

 and distribution, (Reprint in Trans. N. Y. Agr. Soc. for 1857, xvii, 

 p. 784(1858); Walsh-Riley, Am. Ent., i, p. 246 (1869), brief; Packard's 

 Guide, p. 550 (1869), mention as C. quadrivittatus, Harris; LeBaron, 

 First Rept. Ins. 111., p. 61 (1871), habits and description; Saunders, 



