February, '17] HADLEY AND MATHESON: SEVENTEEN-YEAR LOCUST 39 



acres, from which the insects had scattered into nearby woodlands. 

 At places the emergence holes were very abundant, as many as forty 

 or more having been counted in a square foot in various places. It 

 was stated that the insects had first been observed early in the month. 

 At this date, June 22, very few egg punctures could be found and only 

 occasionally were females found in the act of ovipositing. Mating 

 pairs were common. 



The other colony was found a few miles away from that mentioned 

 above, covering at least 100 acres of the woodland. Apparently the 

 cicadas had been even more abundant in this place, as the exit holes 

 were very much more numerous. A road had been run through these 

 woods within a few years, and emergence holes were common in the 

 bed and along the sides of this road. In this colony, which was ex- 

 amined on June 23, egg laying seemed to be more advanced, as many 

 females were observed in the act of ovipositing, and almost all of the 

 bushes and smaller branches of the trees showed numerous egg punc- 

 tures. 



It was stated that the locusts had also appeared near Geneseo, in 

 Livingston County. 



Mr. H. H. Knight informed the writers that he found this species in 

 some numbers at Conesus Lake. 



Ontario County — At Holcomb, the cicadas were exceedingly 

 abundant on the farms of F. E. Burt and Henry Chapin, covering 

 over 200 acres of orchards and woodland. The writers were told that 

 this was the third successive appearance of the insects in part of the 

 orchard to be observed by Mr. Chapin himself. The ground through- 

 out the whole orchard was literally riddled by the emergence holes of 

 the cicadas. Mr. Burt's orchards, just across the road, presented a 

 similar appearance. It was stated that the insects appeared during 

 the first week of June. At the time of the writers' first visit to this 

 place, June 24, the insects had apparently just commenced egg laying, 

 and were abundant on both old and young apple trees and in a young 

 cherry orchard located between the old and young apple orchards. 

 At the time of the writers' second visit, June 29, egg laying was in 

 full sway. Comparatively little damage was done in the old apple 

 orchard, but the young apple orchard, comprising about ten acres of 

 Rome Beauty trees, set the previous year, was entirely destroyed. 

 Many of the trees were dead on this date, and it is doubtful if a single 

 tree survived the attack. The cherry orchard previously mentioned 

 seemed to suffer little injury, as relatively few locusts were present, 

 and scarcely any egg punctures could be found. 



It was stated that the locusts had appeared at irregular intervals 

 along a distance of ten miles in that vicinity, including the towns of 

 Victor, Holcomb, Bloomfield, and East Bloomfield. 



