1900.} INSECTS OF THE ‘‘ SKEAT EXPEDITION.” 855 
is not surprising, as the chief resistance that the ordinary large 
Locustid can offer is that performed with its third pair of legs, 
which are incredibly powerful in some species and often armed 
with formidable spines. Instead of resisting, it lowers its head, so 
as to separate it from the thorax, and erects the hood. If this 
does not cause its enemy to let it loose, its resources are at an end. 
The sudden apparition of the vivid scarlet patch on the dull and 
inconspicuous body of the insect may well be disconcerting to its 
natural enemies. To a human observer it appears that he has 
injured his specimen, and that some brilliantly coloured portion 
of its internal anatomy is issuing from its neck. 
Malay Name.—The Jalor and Rhaman Malays call this and allied 
species “ Belalang Gambor,” or linage Grasshopper, perhaps because 
they recognize a likeness between it in its alarming attitude and 
images of Buddba overshadowed by Cobras with expanded hoods. 
A colossal statue of this kind exists in a cave-temple near Biserat. 
When I asked for the “ Belalang Gambor” at Aring, the natives 
brought me a large Locust (Acridium succinctum), that is known to 
the Malays at Biserat as “ Belalang Babi,” or Pig Grasshopper. 
Remarks.—In the jungle near Kota Bharu, Rhaman, I found a 
single specimen of another species (Capnoptera, sp. nu.) which had 
the same peculiarity of structure and attitude as this form, but 
differed from it in that the brilliant coloration was not contined 
to a part of the body which was concealed when the insect was at 
rest. Its head and body were of a dull neutral green; its tegmina 
pale, dull translucent yellow, barred and spotted with black ; and 
its legs magenta. Magenta was also the colour of the hood, which 
in form and extent resembled that of the commoner species. 
The action of these two grasshoppers may be compared with that 
of certain caterpillars, e.g. of one which is not common on ponme- 
granate trees at Biserat in the month of June. It is a fair-sized 
form, probably belonging to the Lymantriide, which reaches a 
length of from 4 em. to6cem. The dorsal surface is covered with 
long hairs of a pale lemon-yellow colour, those on the 4th to 7th 
segments being shorter and more closely set than the others. 
Between the 4th and 5th segments a black bar of a peculiar velvety 
appearance extends right across the body. This bar is surrounded 
by a kind of white halo, and is almost completely concealed when 
the caterpillar is feeding or walking ; which it does in rather a 
peculiar manner, always resting after every few paces, and twisting 
its body about, as if it were feeling round to see that there was 
nothing wrong. If one blew upon the caterpillar, or irritated 
it in any other way, it suddenly bent the anterior and posterior 
regions of its body together, thus causing the black bar on the 
back to become stretched and be conspicuous, and to appear like 
a gaping, cavernous mouth, of which the bunches of hair behind 
and before formed the jaws. The phenomenon was first pointed 
out to me by Mr. D. TI. Gwynne Vaughan, then botanist to the 
Expedition. 
Some such cases come near to mimicry; for the one just 
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