The Maple Bark Louse. 81 



Peffer to that position, such action does not meet our approval; and hereby 



be it 



Resolved, That our executive committee be instructed to take cogniz- 

 ance of that action and report at our next meeting. 



This resolution was unanimously carried. 



A motion was made and carried that those remaining in 

 the city should meet at the hall at 7 o'clock to attend the 

 sale of fruit and flowers. 



Mr. Stickney now gave a short talk on tree injury by in- 

 sects. 



Prof. Seymour being called for read the following paper:. 



THE MAPLE BARK LOUSE. 



By Prof. A. B. SEYMOUR, of Wisconsin University. 



The Soft Maple trees in the vicinity of Janesville, Wis., 

 are reported to be suffering seriously this year from the 

 Maple Bark-louse, and at the request of a prominent mem- 

 ber of the State Horticultural Society, residing at that place, 

 I have compiled the following facts. They are chiefly from 

 the excellent paper upon this subject, by Miss Emma A. 

 Smith, of Peoria, 111., in the Seventh Report of the State 

 Entomologist of Illinois. 



All bark-lice belong to the order of the true bugs, as dis- 

 tinguished from other orders of insects represented by 

 beetles, wasps, flies, etc., which are not true bugs. The true 

 bugs include, with the bark-lice, such other kinds as the 

 Squash- bug, Chinch-bug and ordinary plant-lice. 



There are various kinds of bark-lice, certain of which 

 have at times wrought serious injury to the apple and pine, 

 but most species do not occur in great numbers; that of the 

 3Iaple is rather exceptional in this respect. 



The ]\raple Bark-louse, Lecanium acericola, was first re- 

 corded by Walsh and Riley in the American Entomologist, 

 volume I, page 14, as received June 26, ]8ft7, from Indiana. 

 Later, its life history was studied by Mr. J. D. Putnam, of 

 Davenport, Iowa, and, in 1877, similar investigations were 

 6— H. 



