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far as he had observed,) that go into the earth as late as the 
20th of July, do not ascend that season, hut remain there in 
the pupa stage until next spring.” Dr. Tilton, in his account 
of the curculio, stated that “ it remains in the earth, in the 
form of a grub, during the winter, ready to be metamorphosed 
into a beetle as the spring advances.” According to M. H. 
Simpson, Esq., of Saxon ville, the larvae, or grubs, “go through 
their chrysalis state in three weeks after going into the ground, 
and remain in a torpid state through the season, unless the 
earth is disturbed.” * Dr. E. Sanborn, of Andover, has come 
to entirely different conclusions, from a series of experiments 
made upon these insects. It is his opinion that they do not 
remain in the ground, during the winter, either in the grub 
or in the beetle state ; but that, under all conditions of place 
and temperature, “ in about six weeks ” after they have en- 
tered the earth “ they return to the surface perfectly finished, 
winged, and equipped for the work of destruction ” ; and that, 
“ as neither the curculio nor its grub burrows in the ground 
during the winter, the common practice of guarding against 
its ravages, by various operations in the soil, rests upon a 
false theory, and is productive of no valuable results.”! If 
these conclusions be correct, these insects must pass the win- 
ter above ground, in the beetle state, and the place of their 
concealment, during this season, remains to be discovered. 
In July, 1818, Professor W. D. Peck obtained, from the 
warty excrescences of the cherry-tree, the same insects that 
he “ had long known to occasion the fall of peaches, apricots, 
and plums, before they had acquired half their growth” ; 
and, not aware that this species had already received a scien- 
tific name, he called it ffliynchcenus Cerasi , the cherry-weevil. 
His account of it, with a figure, may be seen in the fifth 
volume of the “ Massachusetts Agricultural Repository and 
* Hovey's Magazine, Vol. XVI. p. 257, June, 1850. 
t See Dr. Sanborn's interesting communications on the Plum Curculio, in the 
Boston Cultivator, for May 19, 1849, and July 13, 1860, and in the Puritan Re- 
corder for May 2, and the Cambridge Chronicle for May 80, 1850. 
