The length of this larva when full grown is nearly 3 inches. Its colour is dirty white, becoming darker on the back. The head is dark brown, very rough and horny; the three first segments are also horny on the dorsal surface. The rest of the body is very much softer, and is furnished with several horny tubercles, each of which emits a long bristle.
This larva is very lively when disturbed. It usually disgorges a large quantity of black juice from the mouth, biting meantime, in order no doubt to frighten its enemies. It feeds on the roots of various grasses.
The perfect insect appears in January, February and March, and is often extremely abundant at light.
APPENDIX.
By FLORENCE W. HUDSON.
A BRIEF DESCRIPTIVE LIST OF THE PLANTS MENTIONED IN THIS WORK.
The following list of trees, shrubs, &c, has been prepared to assist entomologists in recognising the various food-plants mentioned in connection with the insects described in the foregoing pages. In order to meet the requirements of beginners, all botanical terms have been omitted. Those desiring precise scientific information on these plants, will of course consult works specially dealing with botany.
Aciphylla squarrosa (Spear-grass). A plant often found on the sea-coast, or open hilly country, with long, very sharp spines instead of leaves. The flowers are very small, and are placed round a tall central shoot, which is also covered with spines.
Asclepias (Milkweed).
Astelia solandri. A plant found growing on the stems of large forest trees. It has very long, narrow, dark green leaves springing from the base of the plant, and lemon-coloured flowers arranged on a long stem. The berries are bright crimson.