-el- 
and North Central States by entering houses in very large numbers. 
The Argentine ant is occasioning- considerable alarm in many parts 
of Mississippi. 
OUTSTANDING ENTOMOLOGICAL FEATURES. INXANADA FOR APRIL, 1930 
n 
' The season of 1929 was characterized over the greater part of the 
'ominion by a cool, backward spring, 'followed by an exceptionally dry 
summer, and generally speaking the country as a whole was comparatively 
free from serious insect outbreaks, 
Jeather conditions were favorable to grasshoppers in 1929, and 
these insects, increased markedly over a considerable part' of Canada, 
particularly in the .dry cattle-range areas of British Columbia and in 
sections of the Prairie Provinces. They were not abundant enough, 
however, to cause serious crop damage; 
Moderate outbreaks of cutworms occurred in sections of New 
Brunswick, southern Ontario and the Prairie Provinces, but damage by these 
insects was- not considered excessive. The estimated loss to field crops, 
however, in 1929, in Saskatchewan alone, due to cutworm depredations, 
was placed at nearly one and one-third million dollars. 
Depredations by wireworms were reported from parts or Ontario, 
the. Prairie Provinces, and British Columbia, in 1929, but severe crop . 
damage was noted only in Saskatchewan and certain dry sections of Alberta 
and in the Okanagan Valley, British Columbia. The loss to grain and 
other field crops in Saskatchewan, due to wireworms, was estimated at 
approximately three and one-sixth million dollars. 
In Ontario, during 1929, the- European corn borer, Pyraasta 
nubilalis Hbn., in general, again showed a decrease in the area in which 
compulsory control is being enforced, clear decreases being determined 
in sixteen counties. In the counties of Essex and Kent, formerly the 
most severely affected, although the stalk infestation was lower, the 
number of borers was probably about the same as in the previous year. 
The infestation increased somewhat in eight other counties. In five 
counties outside the control area the infestation was low, the number 
of borers remaining about the same as in 1928. An interesting point 
noted was the apparent quite rapid increase of the borer on Manitouliii- 
Island. In Quebec, although not carefully surveyed-, the infestation 
on the average is considered to have remained about the same as in 1928. 
In New Brunswick .thejinf est at ion is still present. No sign of the borer 
was found in the localities infested in 1928, but it was discovered in 
very small numbers in other localities in Sunbury, Queens, and Charlotte 
Counties. The borer also was discovered in very small numbers for the 
first time in Nova Scotia, in the counties of Kings, Annapolis, Digby, 
and Yarmouth, and from the stage of development is presumed to be of 
