THE ANGOUMOIS GRAIN-MOTH. 503 
penetrated into Pennsylvania or passed the Delaware.” They 
remarked, moreover, that the insects ' “ appeared to be of 
the same kind with those that do the like mischief in Europe, 
as described to Mr. Duhamel by a gentleman of Angou- 
mois.” 
Mr. Louis A. G. Bose, who was sent by the French 
government, in 1796, to this country, where he spent several 
years, found the Alucita cerealella “ so abundant in Carolina 
as to extinguish a candle when he entered his granary in the 
night.” * This fly-weevil, or little grain-moth, has spread 
from North Carolina and Virginia, where its depredations 
were first observed, into Kentucky, and the southern parts 
of Ohio and Indiana, and probably more or less throughout 
the wheat region of the adjacent States, between the thirty- 
sixth and fortieth degrees of north latitude. But these are 
not the extreme limits of its occasional depredations, as it has 
been found even in New England, where, however, its propa- 
gation seems to have been limited by the length and severity 
of the winter. Wheat, barley, oats, and Indian com suffer 
alike from it, the hist especially when kept unprotected more 
than six or eight months. 
Several essays on this insect have appeared in agricultural 
journals, none of which, however, were known to me when 
my first account of the Angoumois moth was written. One 
of these is an elaborate article by Edward Ruffin, Esq., of 
Hanover County, Virginia, printed in “ The Farmers’ Regis- 
ter ” for November, 1833. The object of the writer is to 
prove, by a series of experiments, that there is a continued 
reproduction of the insect, in stored grain, at short intervals, 
throughout the warm season, or from the latter part of June 
till further increase is checked by cold weather. Mr. Ruffin 
thinks that but very few eggs are deposited on corn in the 
field, that these do not ordinarily hatch till the following 
summer, and that then they are sufficient to stock the whole 
* Encyclopddie Mdthodique, Agriculture, Tom. V. p. 243. — Mr. Bose, a con- 
tributor to this work, resided some time at Wilmington, North Carolina. 
