For the past two years the writer has studied the Oriental CULICIDAB at intervals, with a view to preparing a tabular synopsis of the species. During this time it has become evident that a large number of names will have to be rejected or changed in some way, and it seems desirable to call attention at once to some of these proposed changes, as it will inevitably be a considerable time before the thorough revision of the Oriental mosquitos which the writer has in view can be published. The present paper is intended merely to deal with nomenclatorial questions, points of systematic interest being introduced only in so far as they are necessary to explain or justify the writer's conclusions. The classification here indicated may be taken as approximately final, but the limits of certain genera and their arrangement may ultimately require modification, while their number may not improbably have to be reduced. Over 80 specific names are here for the first time definitely sunk, while the probable synonymy of 8 or 10 others is suggested. On the other hand two new names are proposed owing to the preoccupation of the original designation of the species.