The intersting collection of Culicine mosquitos on which these notes are based was made during 1922 by Dr. H. P. Hacker, of the Malaria Bureau, Kuala Lumpur, Federated Malay States. Most of the material was obtained during an expedition to Cameron's Highlands, on the main range near Tapah, in September. A small amount of additional material from Ulu Gombak also yielded some specimens of interest.

The ambrosia-beetles of Ceylon comprise a number of genera of Scolytidae and Platypodidae. It is proposed only to deal with beetles belonging to the former family which are included in the subfamily Cryphalinae, adding a few notes on the Platypodids.

The results of the investigation may be summarised as follows: Two species of Glossina were encountered in the neighbourhood of Accra, namely, G.palpalis, R.-D., and G. longipalpis, Wied. They were found all along the range of hills to the west and north of the Accra plain, and extending thence a little way on to the plain, G. longipalpis spreading rather farther than G. palpalis. The greater part of the plain was found to be free from tsetse-flies and unsuitable for them. In the town of Accra itself no tsetse-flies were found, and although it is well known that occasional specimens reach it (probably being transported thither by motor vehicles and railway trains), no evidence was obtained that they had established themselves there or would be able to do so under existing conditions.

The present paper is a part of the results of my revisional work on the group Cyrtacanthacrini, which includes all the swarming locusts except Locusta migratoria (L.), the latter having formed the subject of a previous paper. The revision itself, being of a purely systematic character and dealing also with a large number of species of no economic interest, is being published elsewhere, but I thought it might be useful to economic entomologists to give here the principal conclusions arrived at concerning the species of known agricultural importance, especially because this presents an opportunity of discussing some important points in the bionomics of swarming locusts which would be out of place in the revision itself.

Through the kindness of Dr. G. A. K. Marshall, of the Imperial Bureau of Entomology, and Mr. F. W. Edwards, of the British Museum, we have been enabled to examine the two small but interesting collections of African Ceratopogoninae which form the basis of this paper. We have attempted to determine or describe the majority of the specimens, but those belonging to the genus Forcipomyia we hope to deal with at some future time. Several species were represented by single or but few specimens, some of them damaged; further material is therefore much to be desired not only to confirm and complete the descriptions given, but also to determine the ranges of variation.

The fourth stage larvae of A. superpictus, sergenti, funestus and aconitus are discussed. A. superpictus may be at once separated from the others by the absence of float-hairs, or rudiments of float-hairs, from the metathorax and first abdominal segment; also by the small extent of the dark markings on the head, and the narrowness of the dorsal plates of the abdomen. A. sergenti differs from A.aconitus and funestus (of which Edwards has suggested that it might be regarded as a variety) principally in the abdominal plates. A. aconitus and A. funestus differ from one another in details connected with the inner anterior clypeal (i.a.) pre-antennal (pr.a.) and vertical (v.) hairs, and in the shape of the abdominal plates, but they are evidently closely related, if larval anatomy is any evidence of relationship.

The discovery of a species of Phlebotomus in Australia is of considerable interest in view of the fact that the genus contains several exotic species known to be the vectors of specific fevers in man (verruga, pappataci fever, etc.).

The following notes are based, chiefly, on a collection of Coccidae, gathered by Prof. T. D. A. Cockerell and Mr. A. C. de Noronha during the winter of 1920–21.

During the course of plague investigations carried out in Kenya Colony in 1921 by the late Dr. R. Van Someren, and in Uganda during 1922 by the same collector in conjunction with Dr. C. A. Baker, some hundreds of Mallophaga and Anoplura were collected, mainly from small rodents. This material was sent to the Imperial Bureau of Entomology in two instalments, and the present paper deals only with a new species and variety represented in the first collection forwarded by Mr. T. J. Anderson, Government Entomologist, Nairobi. The rest of the collection will be dealt with later. The opportunity has been taken to add also the description of a very remarkable louse which infests an Indian tree shrew.

During the past fifteen years the attention of Economic Entomologists in Central America and the West Indies has been increasingly directed to the damage done by species of the genus Brassolis to the foliage of coconut and other palms. In some of the scattered papers (q.v. Review of Applied Entomology, Series A, 1913–22) dealing with these ravages one finds references to the natural control exercised by Hymenopterous parasites. So far as I am aware the only writers to mention by name any of these enemies are C.Schrottky (1909) and G. E. Bodkin (1917), who list four species between them. Since the spring of 1920 I have examined two small collections of Hymenopterous parasites of Brassolis from Trinidad and British Guiana respectively. In each of these the same one of Schrottky's species is represented, and in all I am now able to list seven species. Two of these have not been seen by me, and two more (Brachymeria and Spilochalcis) are probably recognisable from extant descriptions. In the case of the Telenomus it is hoped that the figures given may facilitate recongnition. Though Ashmead's description of this species is very incomplete, I have forborne for the present to supplement it, since the diagnosis of these minute parasites for any particular geographical area can be attempted best in a comparative key. only the Anastatus has been fully described.

As it appears to be a very unusual occurrence for tsetse-flies to breed in places entirely devoid of overhead shade, it is perhaps desirable to place on record two observations of this kind that I have made recently in Tanganyika Territory.