During the course of work on coconut pests in the British Solomon Islands Protectorate, from August to October, 1928, I took the opportunity to make a collection of mosquitos. Ten weeks were spent in the country, but most of this time was occupied in travelling round the group on brief visits to many islands, and on only two occasions were more than three days spent in any one locality. It was not possible, therefore, to make anything like an exhaustive collection of the mosquito fauna.