The Genus _Hesthesis_ contains a number of brightly marked yellow and brown beetles that mimic flower-wasps both in colour and shape, and are found in similar situations upon flowering shrubs. The wing covers are shortened into rounded pads only covering the shoulders, while the wings are exposed. _Hesthesis vigilans_, under ¾ of an inch in length, is black, mottled on the thorax, and barred with two bands of bright yellow on the abdomen, and one on the front of the thorax. _H. ferruginea_, slightly larger, is bright yellow banded with black; and _H. cingulata_, about the same size, is black, blotched upon the thorax, and marked with three white bands on the abdomen. _Distichocera macleayi_ has the smaller male black with feathered antennae, and deeply ribbed wing covers tapering to the apex. The female, nearly 1½ inches in length, and broader and thickset in proportion, has the dorsal surface clothed with rusty red pubescence. _D. maculicollis_ is a much smaller species, hardly over ½ an inch in length in the male, which is of a dull black faintly marked with white; the larger female is rusty red except a parallel stripe of black down the centre of the thorax. This species breeds in the stems of _Kunzea corifolia_; commencing under the bark the larva gnaws irregular passages backwards and forwards, finally hollowing out several large parallel chambers toward the centre of the stem, in one of which it pupates. Among the most beautiful of our flower haunting longicorns are the members of the Genus _Tragocerus_, with stout angular thorax and broad deeply ribbed wing covers almost truncated at the extremities. _T. lepidopterus_ is variable in size and colouration in the sexes, the smaller male being darker coloured than the large reddish brown female, which measures nearly 1¾ inches in length; both have the wing covers mottled with little patches of grey hairs. _T. spencei_ is a smaller species without the white patches, but having dark wavy bands crossing the centre of the back.