The second group, NOTODONTIDAE, are known as “Prominents” to English collectors from the curious angular form of the caterpillars, though this is not noticeable in our typical forms. The Banksia Moth, _Danima banksiae_, was named by Lewin after its food plant, though it feeds equally upon the Hakea bushes. It is a very handsome moth, nearly 3 inches across the wings, which are of a general slate brown tint; the thorax and tip of abdomen are thickly blotched with white, which is also sprinkled over the body and fore wings in the form of little white scales; the central portion of the abdomen is orange yellow. The caterpillar is a rather slender, cylindrical, ochreous brown creature with the tip of the body lead colour, and the whole surface irregularly blotched with white spots encircled with black, forming irregular bands round each segment. They are generally found feeding in groups of three or four, and when disturbed turn both the head and tip of the abdomen over the back, and protrude two red fleshy filaments from the under-surface of the first segment. The SATURNIDAE are our most important group for size and colour, and an immense fellow, _Coxinocera hercules_, is found in Cape York. Another very beautiful Chinese species, _Attacus cynthia_, which feeds on the foliage of _Ailanthus glandulosa_, has been accidentally introduced into Australia, and is sometimes taken about the Sydney gardens. [Illustration: =Figs. 124= and =125=.--Life history of the Australian Silkworm Moth. 124. _Antheraea eucalypti_ (Scott). Moth and Cocoon. 125. Caterpillar.]