138 THE CANADIAN ENTOMOLOGIST. 
I may add as a noticeable fact that I have this morning pinned a 
brood of Cryptus nuncius, Say, bred from cocoon of Platysamia cecropia, 
numbering 21 f 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 7Ay//oxera vastatrix, or new Vine Scourge. It commences 
with a letter from Sir C. Murray, H. M. Ambassador at Lisbon, cailing 
attention to the ravages of the disease; and stating that the Portuguese 
Government bas 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. Hooker 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.—lVature. 
ExXCHANGES.—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 
