by J. A. O'Neil. 163 
Second instar. ight ochreous or creamy-yellow ; head _ brick-red. 
In the middle of each segment a transverse shining blue-black band, 
bearing six erect strongly setigerous tubercles of the same colour. 
Segments smooth. 
Third instar. Similar to preceding after the moult; but as the 
caterpillar grows the ground-colour becomes nearly white with a light 
bluish tinge, and the tubercles grow longer and more slender. 
Fourth instar. Light blue above, light bluish-green on lateral 
surfaces, each segment armed with six upright burnished gold spines, 
the two dorsal much longer and more slender than the four lateral 
ones. Head, post-cephalic plate and two large triangular patches on 
the claspers chocolate-brown. Several small golden-yellow granules 
on each side of the post-cephalic plate. Stigmata black. 
Fifth instar. Similar to preceding, but the golden spines are longer 
and curved backwards and the stigmata are dark red. Just before 
going to earth the whole body becomes pale milky blue. 
The caterpillar feeds on our two local species of Drachystegia and 
also on Cassia, sp. 
CYRTOGONE BILINEATA, Roths. & Jord. 
This is a dark-coloured, but handsome, moth, the female of which 
looks very much like a Lasiocampid. It is common at Salisbury, 
where the gregarious caterpillars may be seen feeding in numbers on 
Brachystegia. When adult they are ringed with broad crimson and 
black bands, separated by narrow rings of bright yellow. Each of 
the crimson bands bears six short black tubercles densely set with 
long black sete, and the entire body is covered with long downy white 
hairs. If the caterpillar is touched it causes a burning sensation on 
the hand. It feeds rapidly and pupates about the end of January. 
The moth sometimes emerges three weeks later, but more often 
remains in its pupal state until the following summer. It always 
emerges during the daytime. 
The fore-wing of the male moth is acuminate at the tip and strongly 
sinuate along the hind-margin; very dark-purple in the basal and 
median areas, turning to light ochreous mottled with light reddish- 
brown in the outer half. | Hind-wing fuscous, with the basal half of the 
costa deep pink, and the inner- and outer-margins light or dark ochreous, 
mottled with brown. The female has the wings of normal shape. 
The whole of the fore-wing is dark blackish-purple, with two narrow 
black transverse bands and a small median flavous patch. The hind- 
