4$ NEW YORK STATE MUSEUM 



GREEN M \PLE \\ ( >RM 



Xylina antcnnata Walk. 

 Plates 14-16 



The work of this insect was very prevalent here and there in 

 the Hudson valley from Kingston north to Fort Edward and in 

 the Mohawk valley to Fonda and its vicinity. This species, 

 though comparatively unknown till recent years as an insect 

 pest, was reported as defoliating- many of the soft maples at 

 Kingston. Green maple worms were responsible for stripping 

 trees at Red Hook according to Mr R. N. Lewis. Many such 

 maples and adjacent willows along the river from Glenmont to 

 Kenwood were defoliated by the light green caterpillars of this 

 insect. Similar work was very evident from Albany north to 

 Troy. Defoliation of soft maples was reported from the vicinity 

 of Hoosick Falls and it was stated that all the soft maples on the 

 island near Fort Edward were similarly affected. Many soft 

 maples in Schenectady and adjacent Scotia were attacked, the 

 caterpillars appearing about May 20th. June 1st it was stated 

 that there were about three inches of half-eaten leaves lying 

 along the gutters in Mohawk avenue. There was also serious 

 injury at Amsterdam in front of St Mary's Hospital on Guy 

 Park avenue (plate 15) and in that vicinity. There were in 

 this immediate region some fifty trees almost entirely defoliated 

 with many more to the east showing signs of having been rather 

 badly infested. June 9th caterpillars were not very abundant, 

 though the statement was made that they had been excessively 

 numerous prior to a three days' rain on the 5th to 7th, inclusive. 

 The work of this insect in the vicinity of Albany and at Amster- 

 dam is shown in plates 14-16. 



Previous history. A similar outbreak on the soft maples at 

 Schenectady occurred in June 1898, at which time many cater- 

 pillars were to be seen upon the affected trees and crawling upon 

 the sidewalks and adjacent roads. There was also injury that 

 year in a number of other localities. Outbreaks by this insect 

 caused several complaints last year. There are comparatively 

 few early records of damage by this species, though the cater- 

 pillars are frequently seen in orchards sometimes in numbers, 

 and in 1896 on account of their prevalence under such condi- 

 tions were denominated green fruit worms by the late Professor 



