138 THE CANADIAN ENTOMOLOGIST. 



I may add as a noticeable fact that I have this morning pinned a 

 brood of Cryptus nuticius, Say, bred from cocoon of Platysatnia cecropia, 

 numbering 21 $ and 19 $, neither sex, in this instance at least, being 

 remarkably predominant. — O. S. Westcott, Chicago, July 12, 1873. 



Phylloxera. -A very important paper has been printed by Government, 

 respecting the Phylloxera vastatrix, or new Vine Scourge. It commences 

 with a letter from Sir C. Murray, H. M. Ambassador at Lisbon, calling 

 attention to the ravages of the disease; and stating that the Portuguese 

 Government has named a Commission " to examine into the progress of this 

 dangerous evil, and to gather from all quarters, whether scientific or 

 practical (sic) suggestions for the best mode of extirpating it." A report 

 follows from Mr. Crawford, H. M. Consul at Oporto, on the scientific 

 aspects of the disease, as well as several others from French authorities, 

 including a very important one addressed to the Minister of Agriculture 

 and Commerce by the Commission instituted for the study of the new 

 disease, M. Dumas, president. The various papers having been referred 

 to Dr. Llooker for him to report upon them, he states that the only really 

 effectual remedy at present discovered, and this can obviously be only 

 very partially applied and not in the best districts, is flooding the vine- 

 yards in winter. He adds : " there is reason to believe that on the first 

 symptoms of attack in isolated cases, the prompt destruction of the vine, 

 its burning on the spot, and the subsequent treatment of the soil with 

 some approved insecticide, such as carbolic acid, would be of great 

 importance." Vines of American species appear at present to have 

 enjoyed immunity from its ravages in the Rhone district, but the disease 

 has undoubtedly appeared in this country on vines cultivated under 

 glass. — Nature. 



Exchanges. — As I have occupied myself for some time with Ento- 

 mology, and have in my collection a good number of duplicates of 

 insects in all the orders, I am ready to make exchanges with any of the 

 correspondents of the Can. Ent. I am in especial want of Neuroptera. 

 As I spend the summer in the collection of insects, I believe that I am 

 in a position to make numerous exchanges. — F. X. Belanger, Natura- 

 liste, Universite Laval, Quebec. 



Exchanges. — I am much in want of a Canadian correspondent in 

 Lepidoptera. I may say that every Canadian insect is a desideratum to 

 me, for I have not a series of good specimens of any species. I have 

 many, of course, but not a complete series, and there is not a butterfly 



