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144 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 13 
lower its vitality and make it susceptible to the attack of other insects 
or fungous diseases. Hence the importance of caring for shade trees 
even though the pest be small. There were numerous other aphids 
reported but they have been classed together with the exception of the 
maple phenococcus, Phenococcus acericola, which was quite conspicuous 
in northern Virginia. This species was also noticed in northern Ohio. 
Of the scale insects found on shade trees this year the oyster scale, 
Lepidosaphes ulmi , was probably the most abundant. In nearly every 
section it w^as reported on ash, Carolina poplar, willow and other shade 
trees. In many cases the limbs were coated over with these insects, 
so much so, that the men were handicapped when climbing because of 
the slippery limbs. The San Jose scale is not generally found upon 
shade trees other than fruit trees which may be growing in gardens or 
lawns. It is often found upon the mountain ash, and was so reported 
from Pittsburgh and Corning, N. Y. The pine leaf scale, Chionaspis 
pinifolice, was numerous at Detroit, in northern Ohio, Pittsburgh, 
Connecticut, and noticed at Albany, around New York, and Boston. 
The tulip scale, Toumeyella liriodendri , was noticed occasionally and 
was reported abundant from Washington to Philadelphia, in northern 
New Jersey, and numerous along the Hudson River and around Bos¬ 
ton, and noticed in other places. The principal scale on the elm is the 
elm scurfy, Chionaspis americana. At Chicago, Pittsburgh, around 
New York and at Boston it was abundant. Another elm scale, Gossy - 
paria ulmi, was plentiful near Poughkeepsie, N. Y., numerous at Al¬ 
bany, Pittsburgh, Cleveland, and Detroit and noticed in Connecticut 
and at Boston. The cottony maple scale, Pulvinaria vitis, is the 
worst scale on the soft maples and as these trees are planted in every 
section this insect is very common. Nearly every report mentioned 
this scale. At Chicago, Detroit, Pittsburgh, Baltimore, New York, 
and in Connecticut it was very abundant while it was more or less 
common around Boston, Philadelphia, Cleveland, and Cincinnati. 
The golden oak scale, A sterolecanium variolosum, was quite serious at 
Philadephia last spring. 
None of the leaf eating insects were reported as especially destruc¬ 
tive this year. The canker worms, however, were bad last spring in 
northern Ohio as well as at Detroit. At Cincinnati, Pittsburgh, 
around New York, and Boston they were also quite common, and 
noticeable in northern Virginia and in Maryland. The cottonwood 
leaf beetle, Melasoma scripta, was reported from Long Island and along 
the Hudson River. Euvanessa anhopa caterpillars were reported 
from Detroit and Boston. The bag or basket worms, Thyridopteryx 
ephemerceformis, were conspicuous in New Jersey at Red Bank, as well 
as south into Maryland and Virginia. They were also reported from 
