868 MR, NELSON ANNANDALE ON THE { Dec. 4, 
the insect might be by its legs), it is obvious that the whole 
structure would fly off into the air at a tangent; only supposing 
that the pressure was slightly oblique at any point. I have 
no doubt that this is substantially what oecurs in the case of 
Hotinus ; but in the living insect the action is far too rapid for 
the eye to discriminate its details, and dead specimens cannot be 
made to leap in this way, because it is impossible to force the legs 
to perform their part of the action. In two specimens of Hotinus, 
which I observed on tree-trunks at Aring, the wings were spread 
after the insects had leapt into the air, but not immediately they 
left their perch. Both of them distinctly bent down their heads 
before they jumped. 
The nose is perfectly hollow, and does not appear to contain 
any muscle. It differs, of course, from the whalebone in respect 
of its hollowness, and also in that it is only flexible at one point. 
In specimens preserved in spirit it is largely filled with liquid, but 
contains a bubble of air, which naturally rises to the tip when the 
apparatus is in its resting position, and runs towards its base 
when the head is lowered. 
When I had made the discovery in my first specimen of Hotinus, 
I examined some Fulgorid larve, almost certainly those of Pyrops 
nobilis, which had been brought to me by a native at Ban Sai Kau 
in Nawnchik, and which I had preserved in spirit. The nose was 
well developed in these, although the abdomen was stil] small and 
unexpanded and the wings as yet mere stumps. I found that the 
joint was present in these specimens also, and still retained a 
certain amount of springiness, though they had been dead for a 
month. 
Since coming home, I have been enabled, by the kindness of 
Professor Poulton, to examine dried specimens of twenty-six 
species of long-nosed Fulgoride, belonging to nine genera. In 
individuals of sixteen of these species | am able to distinguish 
a crease running across the nose in exactly the saine position as 
it does in my specimen of Zotinus. All of the remaining ten 
species in the Hope Collection, of which species Pyrops nobilis is 
one, have either comparatively short, spiny, or otherwise peculiar 
noses. I have no doubt that the joint would be found in 
them also, were fresh specimens examined; even in my larve, 
in which it is still flexible, there is no external sign of its exist- 
ence except a slight translucency of the integument. The members 
of the bulbous-nosed American genus Fulgora probably use their 
heads in the same manner as the less highly modified Oriental 
forms. There is a deep hollow across the noses of the former 
which seems to correspond to the crease in that of Hotinus; and I 
have satisfied myself at any rate that a certain very limited 
flexibility exists at this point even in dried specimens. What 
is wanted is a series of instantaneous photographs from life. 
Malay Name.—At Biserat Hotinus spinole goes by the name 
of “Raja Legeh,” but this is probably a corruption of some more 
direct appellation. 
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