The DANAINAE are brightly coloured butterflies of a general reddish brown tint with blackish markings; the larvae are smooth cylindrical caterpillars with the tips of the body ornamented with a fleshy tail. The Genus _Danais_ contains six species, of which the best known in Eastern Australia is the “Monarch” or “Brown Gypsy,” originally a North American insect but now almost world wide in its range; it is known under at least four names, and though usually figured as _Danais archippus_, its correct name is _Danais menippe_. The handsome banded black and cream coloured larva feeds upon the introduced “bladder-weed” (_Gomphocarpus fruticosus_), and turns into a beautiful pale green pupa with metallic markings. This large, deep reddish brown and black lined butterfly is too well known to require description. [Illustration: Plate XIX.--LEPIDOPTERA. Family PIERIDAE. 1. _Pieris teutonia_ (Fabr.). Eggs on foliage. 2. _Pieris teutonia_ (Fabr.). Eggs enlarged. 3. _Pieris teutonia_ (Fabr.). Caterpillar. 4. _Pieris teutonia_ (Fabr.). Caterpillar (enlarged). 5. _Pieris teutonia_ (Fabr.). Pupa (enlarged). 6. _Pieris teutonia_ (Fabr.). Pupa on leaf. 7. _Pieris teutonia_ (Fabr.). Showing upper surface. 8. _Pieris teutonia_ (Fabr.). Showing under surface. This butterfly is now known under the name of _Belenois java_ (Sparrman).] [Illustration: _Plate XIX.--LEPIDOPTERA._] _D. petilia_, a much smaller butterfly, has broader white markings on the tip of the fore wings and none round the edges of the hind pair. It has a wide range over Australia, across Asia to Europe. The caterpillar is of a lavender colour and feeds upon the cotton grass; it transforms into a beautiful green chrysalis marked with scattered golden spots and a band of the same colour round the abdomen. _D. hamata_, a fine pearly blue and black species, is recorded by Olliff from Cape York to as far south as Shoalhaven, N.S.W., but is a rare insect in the south. Fourteen species of the Genus _Euploea_ are described, of which _E. corinna_ is a mottled black and white species, very abundant in sheltered gullies in N. Queensland, also ranging southward to Sydney. The larva feeds on a creeper (_Mandevillia_); it is a slender, dull-coloured caterpillar with four pairs of fleshy tentacles on the back. The pupa is suspended to a leaf, and is a rich, bright metallic silver. * * * * *