THE BIOLOGICAL REVIEW. 1 5 



This species differs from several of its congeners in having 

 four conspicuous transverse white bands on dorsum of abdomen, 

 and in having wide white annulations on the legs. 



So far as yet determined the two parasites are restricted to 

 this gall, and I propose eregeroni as the specific name. Ormy- 

 rus eregeroni and Pteromahis eregeroni. 



It would appear to be the normal habit of the Diplosis larvae 

 to emerge from the galls in the fall season, and winter a short 

 distance under the soil, but the parasite larvae to winter in the 

 gall. 



W. Brodie. 



CALOPTENUS FEMUR-RUBRUM. 



During the summer of 1893 this grasshopper appeared in 

 large numbers in several of the middle and eastern counties of 

 Ontario, and did much injury to farm crops. 



The northern parts of the Counties of York and Ontario 

 suffered very severely. 



They were especially numerous in the Township of East 

 Gwillimbury, taking the village of Mount Albert as a centre, 

 with a radius of about four miles, extending into the Townships 

 of Uxbridge and Scott, and many thousand dollars worth of 

 farm products was destroyed over this area. 



It was observed they were especially numerous on light, 

 sandy soils, where a considerable acreage lay uncultivated. 



They appeared first about the middle of June and rapidly 

 increased, so that the injury done to the hay crop was very 

 considerable. They next attacked the grain crops, and 

 although oats were their favorite diet, they attacked, and in 

 many localities completely destroyed the other cereals. 



Later in the season they attacked all root and garden crops, 

 except parsnips, stripping the leaves, and in many cases eating 

 down into the roots. 



In passing over fields or along roadways they would rise in 

 immense, blinding swarms, numerous enough to devour every 

 green thing. 



