The tropical Genus _Batocera_, containing many of the largest and most handsome of our longicorns, is well represented in our semi-tropical scrubs. _Batocera frenchi_ has a very wide range from the Northern Coast of N.S. Wales to Cape York. The great white grubs burrow in the trunks of native figs and other forest trees, and the collectors in Cairns, N. Queensland, capture the beetles by cutting down fig trees and waiting for them at twilight when they come to feed upon the bark. This species measures over 2 inches in length, has a spined rugose thorax, broad wing covers, and immense stout spined curved antennae; its general colour is slate grey to dark brown, with the elytra marked with irregular oval white spots. _B. sapho_ is a more reddish brown beetle, somewhat more slender, and with fewer spots on the wing covers: it is found in the forests of Cape York, N. Queensland. _Rosenbergia megacephala_ is larger still, and is of a beautiful creamy white tint, with the basal portions of the elytra finely spotted with black; the thorax is deeply ridged and spined: it is found at Port Darwin N.A., and Cairns, Queensland. Horace Brown informs me that this large beetle frequents fig trees in the forests of N. Queensland, where they can often be detected by the number of small branches scattered beneath, which have been cut off by their powerful jaws. _Thyada barbicornis_ is a very handsome greyish brown mottled beetle with an oval blackish spot on each side of the elytra, and the antennae are so thickly fringed with fine hairs that it forms a regular brush toward the extremities; it measures under ¾ of an inch in length, and is common on the foliage of native figs on the Tweed River N.S.W. The Genus _Hebecerus_ contains a number of moderate-sized, grey or brownish mottled beetles, many of which lay their eggs in the bark of the wattle trees; the larvae feed and pupate in the tips of the dead twigs. _Hebecerus australis_, a thickset greyish brown species about ½ an inch in length, has a wide distribution over Australia, and has been described under half a dozen synonyms: _H. marginicollis_ is a smaller beetle, with the sides of the thorax marked with buff. _H. crocogaster_ is smaller still, of a similar general tint, with the antennae barred with grey and brown.