4-1 8 NEW YORK STATE MUSEUM 



conquisitor Say, though as a rule this insect appears to be remarkably 

 free from the attacks of natural enemies. 



Distribution. This species occurs in New York, New Jersey, and has 

 been listed by Dyar from the northern United States. 



Bibliography 



1890 Packard, A. S. U. S. Ent. Com. 5th Rep't, p. 830-38 



Larch sawfly 



Lygaeonematus erichsonii Hartig 



A greenish yellow saw fly larva frequently defoliates larches in midsummer. 



This insect has been 'repeatedly brought to the attention of the writer 

 and also to that of his predecessor, Dr J. A. Lintner, on account of the 

 serious injury inflicted in recent years on the larches or tamarack of the 

 Adirondacks. 



Early history. Dr A. S. Packard states that his attention was first 

 called to this species in August 1882, when he saw the effects of its work 

 at Brunswick Me. It at that time had partly or entirely stripped the 

 larches in the very wet swamps on the banks of the Androscoggin river. 

 He found that most of the trees, both large ones 6 to 10 inches in 

 diameter, and small saplings 6 to 1 5 feet in hight, had been attacked and 

 that some of the trees had been stripped, others partly defoliated, and 

 still others had escaped injury, those in the middle of the swamp appear- 

 ing to have suffered most. He also published several extracts from local 

 papers of that year, all of which were to the effect that the larches had been 

 very seriously injured by this imported insect. Its work was observed 

 at Franconia N. H., in the same year by Prof. W. W. Bailey and it also 

 attacked larches in various parts of Massachusetts. The work of this 

 species was observed in New York State Jul)- 25 and early in August 

 1883 at Horicon and Pottersville, Warren co., and at Schroon Lake in 

 Essex county, as stated by Dr Packard. The trees were defoliated by the 

 first of August and the affected region was very extensive, covering many 



