64 ENTOMOLOGICAL INTELLIGENCE AND NOTICES. 
also of the Chigoe or Jigger in the human foot, although during 
the dry season it multiplies incredibly in sandy and dusty places, 
evidently proves that the ordinary development of the majority of 
the individuals is elsewhere than in the foot, and consequently that 
its burrowing into the flesh is but an occasional habit. 
Land insects observed on the ocean. — u Several times, when the 
ship has been some miles off the mouth of the Plata, and at other 
times, when off the shores of Northern Patagonia, we have been 
surrounded by insects. One evening, when we were about ten 
miles from the Bay of San Bias, vast numbers of butterflies, in bands 
or flocks of countless myriads, extended as far as the eye could 
range. Even by the aid of a glass it was not possible to see a space 
free from butterflies. The seamen cried out, c It was snowing with 
butterflies! ’ and such in fact was the appearance. More than one 
species were present, but the main part belonged to a kind very 
similar to, but not identical with, the common English Colias 
edusa *. Some moths and hymenoptera accompanied the butterflies; 
and a fine Calosoma flew on board. Other instances are known of 
this beetle having been caught far out at sea ; and this is the more 
remarkable, as the greater number of the Carabidcs seldom or never 
take wing. The day had been fine and calm, and the one previous 
to it equally so, with light and variable airs. Hence we cannot 
suppose that the insects were blowm off the land, but we must con¬ 
clude that they voluntarily took flight. The great bands of the 
Colias seem at first to afford an instance like those on record of the 
migrations of Vanessa Cardui f; but the presence of other insects 
makes the case distinct, and not so easily intelligible. Before sun¬ 
set, a strong breeze sprung up from the north, and this must have 
been the cause of tens of thousands of the butterflies and other 
insects having perished.” (Darwins Journal, p. 185.) 
Species et Iconographie generique des Animaux articules.— 
Under this title M. Guerin Meneville announces the publication of 
a new work, to appear in parts, at the beginning of 1842, consist¬ 
ing of a series of illustrated monographs of insects, which will 
doubtless maintain the scientific reputation of their author. 
* “lam indebted to Mr. Waterhouse for naming these and other insects.” 
f Lyell’s Geology, vol. iii. p. 63. 
