The Tinted Delias, _D. argenthona_, is a Queensland species, with the outer half of the hind wings on the under surface black, enclosing a number of bright red blotches; while on the hind wings of the Striped Delias, _D. mysis_, the red forms a continuous broad curved band round the tips. In the Yellow-tinted Delias, _D. aganippe_, the wings of the male on the upper surface are creamy white, while those of the female are tinged with yellow, and the black extends further into the wing; on the under surface both sexes have the wings blackish, mottled with large white blotches, and yellow markings; a patch of bright red on the shoulders; and with a row of rounded spots of the same colour running round the hind wings. The larvae feed upon the foliage of _Loranthus_. The Dusky Delias, _D. nigrina_, generally flies high, and is not so easily caught; it has an extended range from Sydney to North Queensland; the upper surface is of the usual colour, but the whole of the under surface of the wings is dull black washed with grey; there is a band of yellow on the fore pair, and the hind pair is marked with the same colour and a horse-shoe band of red. The larvae when full grown are almost black spotted with yellow, and with fine white hairs; they are gregarious and also feed upon the _Loranthus_. _Catopsilia (Callidyras) pomona_ is a large light butterfly, with the upper surface creamy white tinged with yellow, and with dusky spots toward the tips of the wings; all the under surface is dull yellow, with a few white spots, and with pale purple markings, forming a darker patch in the centre of each wing. It is found from Sydney northward through the Malay Peninsula, and into Ceylon. Family 5. Swallow Tails. PAPILIONIDAE. The members of this group of butterflies are popularly known as “Swallow Tails” from the peculiar structure of the hind wings of the typical species, which are produced at the tips into spatulate lobes or tails; though in a large number these tails are wanting. They are all furnished with well developed legs; antennae distinctly clubbed; and the pupae are attached both by the tip of the body and a silken girdle. In this family many of the largest and most beautiful insects in the world are congregated.