76 SPOLIA ZEYLANICA. 
Boarmia crepuscularia, Hub.—This Geometrid moth has 
been reared from a caterpillar feeding on the leaves of T’ecoma 
stans at Peradeniya. 
The twigs of this plant have a silvery-gray bark, and the 
caterpillar is of much the same colour. When not feeding it 
holds on to the twig by the two pairs of prolegs and projects 
at an angle, so that, by the human at least, its presence is very 
difficult to detect. 
The presence of a head is masked by the fact that the 
caterpillar has the power of crinkling up the thorax, so that 
over the thoracic region there is a conspicuous hump. 
The bark of this plant is minutely grooved, and on the 
caterpillar there are faint dark lines corresponding to the 
grooves. 
Along the dorsum and the exposed part of the venter are 
blackish spots. 
On the particular twig on which the caterpillar was resting 
there was nothing to correspond to these dark areas, but they 
bear a strong resemblance to patches of lichen. 
The spiracles are oval, and brown in colour, with black 
margins. The moth is one of those which rest by day on 
bark, to which their colour-scheme gives them a strong 
resemblance. 
In a shallow, stony-bedded stream running down a hill- 
side I encountered a flattish bug clinging to the stones 
under the surface of the water. I picked one up to drop it 
almost immediately again, for it pierced my finger, causing a 
pain not unlike that of a wasp’s sting, and which did not pass 
away for several minutes. I secured the bug, however, and 
it proved to be Heleocoris vicinus, Mtd. (Naucoride). There 
were no after-effects. 
There is a Reduviid bug that comes to the lights at night 
that should not be handled. It is Hctomocoris atrox. One flew 
into the writer’s mouth while he was speaking, and before he 
could eject it, it had pierced his tongue, causing a distressing 
