GIGANTIC TENT-CATERPILLAR. 409 



white, the head is fawn-coloured ; the eyes and the 

 antennae are black ; the thighs pale-yellow, and the 

 legs and tarsi black. This truly elegant species flies by 

 night in a weak and fluttering manner, and with a 

 peculiar oscillatory movement of the wings ; by day it is 

 sluggish, and reposes on the surface of leaves. Near 

 Ambong an Oiketicus is found feeding on the trees with 

 a case an inch and a half long, composed of dead and 

 withered leaves, forming externally a compact and hollow 

 cylinder, closed at the posterior end, and lined with a 

 well-woven, downy felt, of a dirty brown-colour, fabri- 

 cated from a finely-comminuted, vegetable substance. 

 The larva is tolerably active and very voracious, and the 

 imago is a large, dull-brown moth. Among the high 

 grass, I noticed the active black-and-yellow Gryllus 

 elegam (Guer) and, alighting on the leaves in sunny spots 

 of the forests, may be seen the Phytomia chrysorrkcea 

 (Guer) of a beautiful metallic-blue, with a golden tail, 

 and the large carnivorous Milesia gigas. 



During a ramble into the jungle, I was very much 

 amused by observing the great variety of Ants that 

 abound in these forests of Borneo. An Ant, usually 

 more solitary than its neighbours, which I have named 

 the " Bombardier," has a mode of defence similar to that 

 of Brachinus crcpitans. When irritated, it turns up the 

 caudal segments of the body in the manner of an angry 

 Staphylinus, and forthwith emits a continuous stream of 

 dense, white, acrid vapour. This Ant is nearly half an 

 inch long, with a large head and enormous mandibles. 

 It is of a shiny black colour, and has no sting. 



There is another ingenious species which constructs its 



