-24- 
Cregon 
New Mexico 
FOREST TENT CATERPILLAR (Malac osoraa plu vialis Dyar and 
■M„ di s stria Huebn„ ) 
Don C» Mote (March 5): The tent caterpillars, Mai ac o soma 
pluvialis and M n di s stria , will probably be common but not 
sensationally abundant this season, A partial survey of the 
region which was heavily infested last year yielded l6o egg 
masses in about throe hours with four persons scouting. Although 
alder and willow are the major hose plants, they contained 
very few overwintering egg masses, following excessive 
defoliation of last spring. Most of the egg rings were found 
on vine maple (Acer sircin a tum) which apparently had not been 
attacked the previous season c , A microscopical examination of 
the egg masses yielded the following data: 
Caterpillars , 172 
Undeveloped • 397 
Egg parasites ........... _81_ 
Total eggs examined 65O 
BAG-T70RM ( Thyridopteryx ephg&eraef ormis Haw. ) 
R„ Middlebrook (March 11) : The bagworms are more numerous than 
usual . 
ELM 
Nex Mexico 
EUROPEAN ELM SCALE (G- ossypari a spuria Modeer) 
R B Middlebrook (March 11): The European elm scale is increasing 
in the northern part of this State* 
MAPLE 
New York 
New York 
District of 
Columbia 
PIGEON TREMSX (Tremex col umb a L.) 
E» P. Felt and M. D„ Leonard (December 6): Sugar maples in 
Champlain, Chateaugay, Messena, Moira, and Bombay were all 
more or less badly affected with the pigeon horn-tail and 
showed evidence of the work of the attending parasite Thalessa. 
SUGAR -MAPLE BORER ( Glycob ius speciosu s Say) 
E. P. Felt and M. D. Leonard (December 6,1923): Observed rather 
commonly in Champlain, Chateaugay, Messena, Moira, and Bombay, 
New York. Many sugar maples in these towns are in a dying or 
greatly weakened condition from the attacks of this pest. 
BOXSLDER PLANT-BUG (Leptocor is tr ivit tatus Say) 
V7m, Middleton: The boxelder plant -bug has been an annoying 
house guest in the neighborhoods of Sheridan Circle and 
Georgetown, Washington, D. C. 
