377 
showing no less than 27 ecolour-patches varying in hue. E.g. the 
brownish-black bands to either side of the dorsal median stripe are 
by no means uniformly coloured, but show a mosaic of black 
and light seales. These bands pass on to the thorax almost unmodified. 
Especially the continuation of the subdorsal stripe on the thorax is 
striking, as the white bushes, which characterize this stripe on the 
abdomen, are also seen on the thorax. The epipterygial stripe 
evidently represents the prolongation of the epistigmal line, this line 
being likewise marked by yellowish-white busbes. Behind the eye 
the subdorsal and the epipterygial stripe unite into one. 
But traces of the diagonal stripes may, I believe, also be detected, 
at least in some specimens, in the shape of dark and light oblique 
bands on the sides of each segment, above the stigma. Those features 
which in celerto are either absent or very indistinct, are un- 
mistakably present in other species, e.g. alecto. About the wing- 
design of celerio we still want to remark that the considerable diffe- 
rence between the upper surface of the fore- and that of the hind- 
wing, in contrast to the nearly perfect similarity of both wings at 
their underside, probably points to the fact, that the upperside has 
become secondarily modified to an important degree. Now it is 
remarkable that at this side the forewings, in hues as well as in 
design, show greater similarity to the dorsal side of the thorax 
and abdomen than does the hindwing, notwithstanding the fact that 
on the first-named the V-diagonal design (as I have called it) is 
strongly expressed. Moreover this design, with regard to the direction 
of the diagonal-line, possesses a striking similarity to the oblique 
markings on the abdominal rings of the caterpillar. This similarity 
especially enters into evidence, when the wing is projected in the 
above-described way on the lateral wall of tbe thorax. 
In conclusion I wish to say a few words about the design of the 
pupae, which in Sphingids, as already mentioned in a foregoing 
paper, has been preserved more or less, especially in the group of 
the Chaerocampinae. It consists of dark blotches on a lighter ground: 
shape and size of these blotches is rather irregular, yet it is clear 
that they are arranged in rows, corresponding to the dorsal, sub- 
dorsal, epistigmal, stigmal, hy postigmal, subventral and ventral lines of 
the caterpillars and imagines. In a few specimens, which J found oceasion 
to investigate (amongst which was one of unknown derivation, the 
species therefore remaining uncertain to me) the number of these 
rows of spots is-much higher, which leads to astriking resemblance 
with the design of imagines, especially celerio. Though I could not 
yet find leisure to study in details the similarity between caterpillar 
