OF INSULINDE. 67 
and other remnants they could find. They attached these 
pieces by taking them with the mandibles, then bent the 
head on the back and put them on the bristles. Probably 
these objects only fasten by adhaesion, they are not spun 
on it and there is no sticky fluid on the hairs as nothing 
of it could be de- 
tected under the 
lens, and with a 
pencil the objects 
were easily brushed 
away, what would 
not be the case if 
they were sticked. 
I once observed that 
a larva put pieces 
of a spider’s web, 
which was found 
on a leaf, on its 
back, and I presume 
that this fact, what 
will often pass in 
nature, has lead to 
the wrong suppo- 
sition that they- 
selves spin the rem- Chrysopa jacobsoni, n. sp. 
Larva, first stage. 
nants together. 
At the evening of the first and second day, all returned 
to the egg-scales and rested there in the attitude above 
mentioned. 
On October 12th they did not eat and became slow, 
they moulted on the 13th. Then they were very glutinous 
and sucked out many Aphidae. It was interesting to observe 
how they turned their victims on the tips of their mandibles, 
to empty them perfectly. One larva was killed and sucked 
out by its fellows. 
On October 17th they moulted for the second time. The 
moulting specimens become very easily the victims of 
Fig. 20. 
Notes from the Leyden Museum, Vol. XX XI. 
