~479~ 
SYCAMORE 
WESTERN SYCAMORE LACEBUG ( Corythucha confraterna Gibson) 
California E. A. McGregor (August): The western sycamore lacebug, C. 
confraterna , appears to be the worst pest of PI at anus rac emo sa 
in central California. Annually it increases in severity as 
the summer progresses until the pest imparts to the "beautiful 
plane trees a conspicuous' rustiness that is recognizable almost 
as far as the trees can be seen. The present season the attack 
of this insect was at its height about mid-August. 
Connecticut 
WALNUT 
WALNUT CATERPILLAR ( Pat ana into^errima G. & R.) 
E. P. Pelt (August 2l): Walnut caterpillars are unusually 
abundant in the Danbury area, defoliating many trees. 
Delaware 
Ohio 
Indiana ' 
Nebraska 
L. A. Stearns (August 4): The walnut caterpillar was reported 
doing damage to English and black walnut from a number of planta- 
tions, 
E. W. ....Mendenhall (August 21): Walnut caterpillars are bad on 
walnut trees in some places in southwe stern Ohio, Not much is 
done to check them, 
J. J. Davis (July 30): This insect was reported defoliating 
walnuts at DeMotte, 
M, H, Swenk (July 15 to August l): The walnut caterpillar 
has been especially numerous and injurious to the foliage of 
walnut trees during the period here covered. 
Massachusetts 
Connecticut 
WILLOW 
EUROPEAN" WILLOW BEETLE ( Flagiodera versicolora Laich.) 
J. V. Schaffner, Jr.(Ai'gust 3): Mr. Holbrook reported that 
100 roadside willows in Warren, Worcester Co^.inty, were 50 to 
75 per cent defoliated. Also about 50 willows in Sandwich, 
Barnstable County, 25 to 50 per cent defoliated. 
M. P. Zappe (August 22): This insect appears to be less 
abundant than usual in the western part of the State where it 
was first introduced. In the eastern part of the State it is 
present in greater numbers. 
