have been placed in that class, belong partly to the _Phanaeus_, and partly to the _Eurysternus_ Dalm. a remarkable species of the genus Ateuchus. The _Ateuchi_ are not less numerous in South America than in Africa; and here is found what may be looked upon as the intermediate link between _Copris_ and _Onitis_. No part of the world is so rich in _Rutelides_ as trophical America; and according to the narrow limits within which Mac Leay confines this family, it would seem to be exclusively restricted to this continent. The greater part have not the head divided from the head-shield by a line, and the breast is lengthened in front into a spine: this extensive division is peculiar to America. In the second division, the head-shield of which is bounded by a strongly marked line, those which are provided with a breast-bone are American. South America possesses also the intermediate genus between the _Rutelides_ and _Scarabaei_, in the genus _Cyclocephala_, _Anoplognathidae_ were hitherto known to us from New Holland, Asia, South Africa, and South America, and are characterised by the drooping form of the upper-lip, falling lowest in the middle, and by the inequality of their claws; the under-lip, at the same time, has either a projection in the centre, or consists of two parts lapping over one another. In the same way that the _Anoplognathidae_ of New Holland have the appearance of _Rutelides_ proper, are the South American _Anoplognathidae_ distinguished by their resemblance to _Melolonthidae_: those of Brazil have no breast-bone, and at least one claw to each foot is cloven, which distinguishes them from those of Asia. _Chelonarium_ and _Atractocerus_ fly about in the evening, and are attracted by a light. The Brazilian jumping beetles differ, almost all of them, in their form, from those of Europe. Among the _Heteromerides_, in the neighbourhood of Rio Janeiro, owing to the dampness of the soil, no unwinged beetle is to be met with; a few varieties of the species _Scotinus_ have been found upon the Organ mountains only.