-6i- 
FO'REST AND SHADE-TREE INSECTS 
CANKERWORMS (Geometridae) 
New Jersey. M. D. Leonard (March 21): Cankerworms, mostly Faleacrita 
vernata Peck, were observed in considerable numbers ascending trunks 
of oaks and other woodland and shade trees at Ridgewood. The worms 
were mating freely. 
TENT CATERPILLARS ( Malacosoma spp. ) 
Vermont. H. L. Bailey (March 26): Egg masses of forest tent caterpillars, 
(M. d isstria Hbn. ) are abundant in Windham, Windsor, and Rutland Counties, 
southern Vermont. Scouting records show an average of from 5 to 20 egg 
masses per tree. 
Arizona. C. D. Lebert (March l6) : Small webs of Malacosoma sp. were ob- 
served on cottonwoods north of Phoenix. The trees are scarcely in leaf 
at this date. A few webs were found on a crab apple tree in this same 
area. The caterpillars had done no damage. 
WHITE-MARKED TUSSOCK MOTH "(He merocampa leucostigm a S. & A. ) 
Illinois. W. F. Flint (March 23): It is practically impossible to find 
tussock moth eggs anywhere in the northern half of Illinois. This is 
probably because the severe winter of 1935-36 killed nearly all of the 
eggs above the snow line. 
BOXELDER ' 
A BOXELDER LEAF ROLLER ( Cacoecia negundana Dyar) 
Colorado. S. C. Mc Campbell (March l6): Eggs of the boxelder leaf roller 
( Archips negundana Dyar) are more abundant than for many years and have 
come through the winter in viable form in Weld County, north-central 
Colorado. 
C. R. Jones (March 26): In towns in northern Colorado consider- 
able dormant spraying is being done on boxelder and cottonwood trees 
for control of the boxelder leaf roller. 
ELM 
EUROPEAN FRUIT LECANIUM ( Lecanium corn i Bouche) 
Oklahoma. F. A. Fenton (March 20): The infestation on elms in many localities 
in the State is serious. Males are emerging and female scales are about 
one-third developed at Stillwater. One species of parasite has been 
reared. The -oercentage of parasitization of scale appears to be quite 
high. 
