151 
It is considerably larger than those on Goose- 
berry bushes. In shape not so ovated, but both 
the head and hind pai’ts ai'e more gradually 
tapered to acute points than those previously 
mentioned are. It appears early in the spring, 
at which time seldom more than one or two are 
to be found on the under side of the leaf, where 
they appear to remain three or four weeks before 
any offspring are brought forth, previous to which 
they generally quit their former station, probably 
at the time of copulation, and principally fix on 
the ends of young shoots, where they soon vivip- 
ardusly establish a numerous progeny ; and no 
doubt each parent is the progenitor of several 
generations. From the middle of June to the 
middle of July they generally arrive at the per- 
fect or winged state, and emigrate into different 
pai-ts at greater and lesser distances from their 
original abode. They then establish their succes- 
sors, and I believe shortly after die. At the 
approach of winter, some of the latter cletch 
descend into the earth, and other concealments, 
and others deposit their eggs on the branches of 
the bush, which are brought into existence the 
fore end of April, about which lime the others 
leave their concealments, and ascend the trees. 
Mai’ks of the existence of those insects will be 
discovered generally from the curling of the 
twig ends and young leaves, but first more par- 
ticularly from the tumefaction of the most grassy 
leaves, of which they are the real cause, and not 
