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Massachusetts 
Pennsylvania 
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Ohio 
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FOREST AND SHADE-TREE INSECTS 
SADDLED PROMINENT (H eterocampa guttivitta Walk.) 
J. V. Schaffner, Jr. (July 23): Mr. C. E.Hood reports that 
woodland defoliation by this species is beginning to show up 
in the Berkshires. 
BAG7/0RM ( Thy r i dop t e ryx ephemerae f o'rmi s Haw. ) 
J. N. Knull (July 24): There have been .numerous complaints 
of the bagworm doing damage to evergreens and broadleaf trees 
in Franklin County. 
E. N. Cory and assistants (July 17): Bagworms are quite 
generally abundant throughout the State. 
L. Bash (July 20): This species is seriously defoliating 
evergreens on the estate of General Louis Bash in rorthwestern 
Washington, D. C. 
G. T. French (July 2l): Many people are sending in the bag- 
worm this month. It seems to be unusually common and destruc- 
tive and is attacking not only evergreens but certain broad- 
leaved trees and shrubs as well. We have seen one or two 
pussy willow trees nearly defoliated recently. 
H. G. Walker and G. E. Gould (July 24): Several cases of 
moderate injury by bagworms on evergreens have been brought 
to our attention, both in and around Norfolk and on the Eastern 
Shore. 
E. W. Mendenhall (July 17): The bagworm is quite bad on 
arborvitae and Norway maples in some localities in Dayton. 
The trees are stripped of their leaves before the owners 
notice the damage. Reported from Springfield, Columbus, and 
Dayton. 
Z. P. Metcalf (July 21 ): The bagworm is more abundant and 
destructive than I have seen it in 20 years. 
CECROPIA MOTH ( Samia cecropia L , ) 
J, A. Munro (July 18): Cecropia caterpillars are causing 
injury to trees in Golden Valley and Adams County. 
ELM SPANWORM ( Snr.omos subsignarius Hbn.) 
J. N. Knull (June 24): There has been an extremely heavy 
infestation of this worm in the vicinity .of Edgemere. Practi- 
cally all of the species of forest trees in that vicinity show 
some feeding. Many of them have been entirely defoliated. 
About 50 per cent of the moths had emerged on July 4. 
