854 MR. NELSON ANNANDALE ON THE [Dee. 4, 
blue “ eye * ringed with black on the inner surface of the femur 
of the fore limb in this species ; and that the “eye” is concealed 
when the Mantis is at rest, because the two limbs are held folded 
together in front of the body. ‘* But when danger threatens,” to 
quote his own words, “the praying Mantis assumes a very peculiar 
and interesting attitude, which, so far as I know, was first described 
by Goureau. The long and narrow prothorax assumes a vertical 
position, so that the body is supported only by its two pairs of 
hind legs. Under these circumstances the insect widely separates 
the front pair of legs, giving to its long femora a horizontal position, 
so that the distal ends of them are directed on opposite sides. In 
this way the eye-spots, which are situated at their bases, stand out 
conspicuously and are most obvious, owing to their colour. The 
tibie of the front pair of legs are directed vertically upwards. At 
the same time the insect lifts up its tegmina and unrolls its wings, 
giving them a horizontal position, and it begins quickly to raise 
and lower its abdomen, which, rubbing against the posterior edge 
of the wings at the same time as these continual movements, 
produces a sound. The Mantis can produce the latter artificially 
by rubbing its wings against some extraneous object.” 
In the ‘ Entomologist’s Record’ for January 1900, Brunner von 
Wattenwy! calls attention to the markings on the fore limb of a 
species of Hierodula from Borneo. He speculates as to their 
origin, but does not assign them a use. 
TV. AnarmMiIne CoLour AND ATTITUDE. 
A Hooded Locustid (Caupnoptera sp. n. near C. staudingeri), 
Colour.— 2. Body and limbs dull green, marked with dark 
brown. Tegmina dull green, veined and spotted with dull blue and 
marked with black. Hind wings pale smoke-colour. Between 
the head and the thorax there is a rectangular bladder of vivid 
searlet. This is habitually concealed beneath the dorsal plate of 
the prothorax, but can be everted and project behind the head 
like a hood. When not in use the two corners most remote 
from its point of origin are inverted. When it was displayed 
these were everted, apparently by the forcing of blood into the 
hollow of the structure. ¢. Similar to female, but considerably 
smaller. The hood was equally well developed in both sexes. 
Habits and Attitude—The species is not uncommon in the jungle 
of Nawnchik, Patalung, and Jalor ; but the male is much rarer than 
the female. I only obtained a single specimen of the former. So 
far as I know, there is nothing peculiar about the habits of this 
species when it is left to itself, except that the saltatorial legs 
being less highly developed than they are in most Malayan 
Locustids, it is unable to take the enormous leaps of forms, like 
the “ Belalang Rusa” or Deer Grasshopper (Mecopeda), which 
are found in the same environment. When the hooded locust is 
taken in the hand it makes very little resistance. Leaving the 
consideration of its peculiar means of defence for a moment, this 
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