THE CANADIAN ENTOMOLOGIST. ‘2 00 
amount of the excision of the hind wings, and the size and shape of the 
labial palpi, and yet more in the habits of the larvæ. 
In the living insect the wings are deflexed in repose, thus differing 
from Depressaria, and some other allied genera. In many species, the 
posterior margin of the hind wings is deeply excised beneath the costa ; 
in others, the emargination is small or none. The antennæ are slender 
and simple, and usually about three-fourths as long as the wings. The 
maxillary palpi are microscopic, whilst the labial are long, overarching 
the vertex, with the third joint pointed, and about two-thirds as long as 
the second, which is enlarged, though not brush-like beneath. 
It is, perhaps, the largest genus among the Micros, and, widely as 
some of the species differ from each other, it has not yet been found prac- 
ticable to effect a natural division of it. The habits of the larve are very 
diverse, some of them being leaf miners, some making galls in stems of 
plants, some feeding inside of nuts and fruits, while others are external 
feeders. There is no “ pattern of coloration” peculiar to this genus, the 
species of which are of all shades and colours. It is a genus of very wide 
distribution, and some of the species are common, now at least (whatever 
they may have once been), to both continents, and to many regions in 
both. 
1. Gelechia Hermannella, Stainton. Nat. Hist. Tin., v. 9, p. 262. 
This unique and handsome species is described, and the synonymy 
given, by Stainton, with a good figure (fig. 3, plate 8). The longitudinal 
silyery streaks are, however, a little more elongated in the figure than in 
my specimens, so as to connect the transverse markings. It occurs 
almost all over Europe, but has not heretofore been recorded from this 
country. I have found it mining the leaves of species of Chenopodium in 
Kentucky and Wisconsin. The larva, at first, is white; but, towards 
maturity, eff crimson spots make their appearance on each segment ; 
four on top and two on each side. (Stainton says four, but in all of my 
specimens there are eight). Sometimes some of the spots are confluent. 
It enters the leaf from the upper surface, and frequently leaves an old 
mine to construct a new one. Frequently the leaves are scarred or 
blotched by numerous mines, and sometimes the whole leaf is mined, 
but in such cases there are several larvæ in a mine. The typical form 
of the mine seems to begin as a point, from which it passes, gradually 
widening, first to one side, then to. the other, in a series of loops, each 
extending a little farther than the preceding, like a band gradually widen- 
ing, wound around a cone. The frass is scattered through the mine. | 
