3S6 TlMEHRI. 
and, especially at the dorsal aspe6t of the sub-terminal 
ring, they are yellow tipped as though coloured with a 
fine yellow powder. The long hairs are of a pale 
yellowish-brown tint. The usual position of these tufts 
is the horizontal ; but at frequent intervals, the dorsal 
series are elevated by the little animal to a vertical 
position. 
The specimen was found on the soil, so that nothing 
is known of the food that it selects ; and as this was the 
only one met with, nothing is known as to its life- 
history. At certain times, it bears some resemblance to 
a tarantula, while again it is not unlike a coloured plant- 
like tuft ; and doubtless these resemblances serve to 
screen it from the observation of its enemies. 
From the foregoing description, the little animal will 
easily be recognised if met with, and possibly some one 
wandering about the country may be able to trace out 
the other stages of this curious inse6t. Another cater- 
pillar which is most likely related to it, is commonly to 
be found on the rose-tree ; but this latter differs in being 
of a brownish yelllow colour, with deep brownish-black 
areas along the back, destitute of the long hairs, and in 
having flattened instead of cylindrical lobes along the 
sides of the body. In this latter species, when the cocoon 
is about to be formed, the flattened lobes become bent 
under the body proper to form the external covering ; 
and doubtless the cylindrical lobes of the former species 
serve the s^me purpose. 
Identifications of Guiana Timber Trees. —I am 
indebted to Mr. RoDWAY for the following list of the 
identifications of some of our timbers. The list which 
