-298- 
New York 
North Dakota 
Minnesota 
Iowa 
Nebraska 
Kansas 
FOREST AND SHADE-TREE INSECTS 
PERIODICAL CICADA ( Tibicina septendecim L. ) Brood V 
E. P. Felt (June 23): The periodical cicada is extremely 
abundant near Riverhead, Long Island, a section on the north 
shore being described by Mr. George C. Pike as being alive 
with the insect. It is so numerous that the new growth, 
principally oak, is being destroyed by the ovipositing fe- 
males. This confirms the report made by W. T. Davis in 
Bulletin No. 10 of the Brooklyn Entomological Society in 1915, 
page 79, and is apparently a comparatively unrecognized col- 
ony extending in a band about 12 miles long from Fresh Pond 
to within 3 miles of Riverhead and extending inland from the 
Sound to the middle of the; Island, 
CANKER WORMS (Geometridae) 
J. A. Munro (June 17): Cankerworms have defoliated large 
areas of basswood and other trees, particularly along the 
Red River Valley portion of the State. Several reports have 
been received of injury to apple trees. 
A. G. Ruggles (June 22): Fall cankerworm ( Alsophila pome- 
taria Harr.) and the spring canker worm ( Palpagffii&^v ernata 
Peck) are more abundant than usual this year from Minneapo- 
lis 20 miles westward. 
C J. Drake (June 27): The spring canker worm has been ex- 
tremely abundant in the vicinities of Traer, Toledo, and 
Marshalltown. Many trees have been totally defoliated by 
the feeding of the caterpillars. In one of the State parks 
near Toledo it is impossible for the people to use the park 
because of the enormous number of canker worms present. 
M. H. Swenk (May 15 to June 15): Some' orchards in south- 
eastern Nebraska were damaged during May by the spring cank- 
erworm, which also attacked elms more or less as far to the 
northwest as Custer County. 
H. R. Bryson (June 22): Dr. 3. G. Kelly reported that the 
spring canker worm was a serious-problem from Clay Center.. 1 to 
the western part of the State. These larvae were the most 
injurious in Lincoln, Ottawa, Cloud, Saline, and Clay Coun- 
ties, defoliating the trees along the rivers and small tribu- 
taries. This insect was also reported as injuring elm trees 
at Belvidere and d efoliating apple trees at Chanute, June 5. 
