SEPTEMBER. 
295 
spin another^ but it did not attempt it. The caterpillar was 
dull black, with large red spots down the back ; the chry- 
salis brown, with rusty marks ; neither of them handsome. 
F, — I lately observed a larva of the Violet Tip Butterfly 
( Grapta C. Aureum ) attached by the tail to a growing 
stalk of grasS;, and, of course, hanging parallel to it, as yours 
just mentioned : one would suppose they would prefer to 
hang from a horizontal plane. 
C, — From the willows, I have lately obtained many of 
those handsome caterpillars which produce the Twin-eyed 
Hawk-moth ( Smerinthus Geminatus ), in different stages of 
growth. When full grown, they are very rough, pale green, 
with diagonal light-yellow stripes ^ on each side : the anal 
horn is small, curved, and blue ; the head has two yellow 
stripes down it. In some that sloughed their skins, I ob- 
served that for some time before the moult, the new head 
was seen bulging out the neck ; and these yellow lines on it 
appeared distinctly through the skin. One that I took from 
the same trees, differed from the others in this particular, 
that it had two rows of reddish purple spots on each side, 
one of which contained the spiracula ; but for this, they were 
exactly alike ; I doubt it is not specifically distinct. One of 
the largest is, this morning, become a pupa, not very large, 
naked, deep brown. Many other kinds of caterpillars have 
occurred : I have described only the more remarkable. The 
plan of shaking or beating branches of trees over an um- 
brella is a most productive one, yielding to the practical 
entomologist a great number and variety of species, that 
might otherwise elude his keenest research. 
F, — Going to the village a few days since, I made an 
addition or two to my stock of entomologic lore. Standing in 
a house there, I observed a large insect, flying backwards 
and forwards before the door, and on going out succeeded in 
catching it with my hand ; it proved to be a female of the 
