the larva of Euliphyra mairifica. 511 
which are provided with somewhat irregular interlocking 
processes. One of these plates is shown highly magnified 
at fig. 6. Each has a scale-socket, but, apparently, does 
not bear either a scale or a brush-like tuft. 
Fig. 9 shows one of the spiracles. Most, if not all, of 
these have the openings represented on the plate, although 
it is sometimes difficult to be sure of the presence of all 
three. Protection is afforded by stiff pointed hairs, for the 
most part curving inwards towards or over the spiracular 
orifices. Finally, the hard chitinous ridges of the dorsal 
groove are armed with very short hook-like spines and there 
are a few spines or hairs on the underside of the mantle 
edge, so arranged as to preclude entry if the mantle were 
raised at any part. 
On turning the larva over its lepidopterous character 
becomes more ‘evident (see fig. 3). The head, three pairs 
of true legs, and five pairs of prolegs can now be seen. 
The true legs seem to be progressively slightly larger as 
we proceed backwards, whilst the last pair of prolegs are 
much smaller than the remainder. The prolegs are of 
what Dr. Chapman has described as the ‘‘ Macro ”’ type, 
having hooks only on the inner margins of the feet. 
The head calls for special remark, owing to its modifica- 
tion in adaptation to the habits of the species. It is 
elongated and somewhat conical in form, and when with- 
drawn there is round the base a deeply invaginated fold 
of the cuticle. At fig. 10, I have prepared a semidiagram- 
matic illustration of the anterior portion viewed from 
beneath, to show the mouth parts, etc., though it must be 
understood that in the actual specimen the parts are all 
very small and close together, and cannot be distinguished 
so easily. There are six ocelli situate at o, four of which 
are anterior and lie in a small semicircle, the remaining 
two being rather more posteriorly placed. The antennae, 
a, are placed laterally just above the labrum, /, and be- 
neath the latter, and in a dorsal view concealed by it, 
are the mandibles, md. These have four ridge-like 
teeth. The maxillae, m, have two large lobes each with 
two small points, and in the actual specimen lie close 
together, forming what looks like a pointed organ project- 
ing from beneath the labrum, when viewed from above. 
There are large maxillary palpi, mp, and the labium, /8, is 
long and somewhat pointed, and has on it a small papilla, 
possibly a tactile organ. There is some evidence of a 
