... -425- 
The aspen poplar leaf beetle is widespread and appears to he increasing 
in southern sections of *!anitoba. 
The walnut caterpillar is again in outbreak form in southwestern Ontario, 
defoliating many trees. '■'■ . : 
Reports indicate that mosquitoes, black flies, and certain other biting 
flies' have been unusually scarce in many parts of eastern Canada, and probably 
also in- the Prairie Provinces. 
