THE CANADIAN ENTOMOLOGIST. 39 



grape-growers believe the Phylloxera came from America. They are 

 opposed to destroying the vines, and believe in studying the insect and 

 fighting it with manure and phosphates, ammonia, and potash. This 

 treatment succeeds in porous soils, and to obtain this porosity the learned 

 delegate had made use of dynamite, raising the ground thus from a great 

 depth without injuring the vines. He then puts some chalk and phos- 

 phorus at the foot of the stock and irrigates. A gas is disengaged by the 

 •humidity, which destroys great quantities of insects, and by this means he 

 obtains a crop. M. Lichtenstein added to this communication the result 

 of his personal observations, that from the 15th August to the 15th 

 September the Phylloxera takes wing and departs. He was not able to 

 distinguish the sexes, but there was a time when the insect laid an egg 

 which gave birth to the mother of the legions which devastate the vine- 

 yards. At this time the insect is within reach, and should be destroyed. 

 In studying the Phylloxera of the vine the speaker discovered the 

 Phylloxera of the oak. 



Viscount de Saint Trivier, delegate from the Rhone, gave a history of 

 the progress of the Phylloxera in his neighborhood, where it appeared 

 three years ago. He pulled up some vines in April and June, but found no 

 Phylloxera ; but in July they appeared, which fact made him think, with 

 M. Cornu, that the temperature must be at least 15 cent. He obtained 

 good results by covering the stocks with a sort of paste made of saw-dust 

 and coal-tar. M. Denis employed boiling water, to which he added one- 

 tenth of tobacco-waste. 



M. Loubet did not believe in medicines, but advocated patient re- 

 planting till the disease disappeared of itself, as he believed it soon would, 



CORRESPONDENCE, 



INTERESTING CAPTURES. 



Last summer, while camping out with a party of friends on some of 

 the small lakes north of Lake Ontario, ostensibly for the purpose of 

 fishing, I kept on the alert for entomological rarities, and was rewarded 

 by the discovery of two specimens of a Giapta, which I immediately 

 recognized as G. satyr us Edw., though much astonished at the occurrence 

 of the species so far from its usual habitat — the Pacific coast and Sierras 

 of California — and hitherto not found at all on this side of the Rocky 

 Mountains. Yet they were unmistakeably satyrus, and Mr. Edwards, on 

 receiving one of the specimens, corroborated my opinion in the matter. 



