XVIII. REVISION OF THE O R I E N T A Iv TiPUIvIDAE WITH DESCRIPTIONS OF NEW SPECIES. By E. Brunetti. The present paper may be regarded as an annotated catalogue of Oriental Tipulidae; composed of (r) the species given in Van der Wulp's catalogue with such notes as appear to be of interest.^ It is significant that no corrections are necessary as to their generic location. This is directly due to the fact that Osten Sacken, who must be regarded as, par excellence, the principal authority on this family, had already worked through them and placed practically all of them in their proper genera:. (2) such species as have been described since Van der Wulp's catalogue: (3) the disposition of the types of as many species as possible with notes on their present condition : (4) over fifty new species herein described, preserved in the Vienna Museum, Indian Museum, Pusa collection or my own; and (5) the erection of eight new genera, formed, in two cases by the splitting of Moni^oma and Cladura into three genera each, and in other cases through t:.e discovery of several new forms that cannot be satisfactorily placed in any of the existing genera. It is not without considerable hesitation that these new genera are proposed, since Osten Sacken repeatedly warned students in this famih^ of the necessity of great circumspection in this matter, owing to a general tendency in the Tipulidae to adventitious variation, more especially in the venation. I have little doubt, however, of the generic stability of all those now suggested. Moreover there are sev^eral undescribed species in the Indian Museum the generic position of which is still most uncertain. One genus, Tyichocera, I venture to remove from the Limnophilini to the Amalopini, regarding it, after mature delibera-tion, more akin to the genera of the latter section. It may be noted that in addition to the new species herein described I have descriptions completed in MS. of nearly 140 others from different parts of the East, and these will be published in my forthcoming work on certain families of Nemocera in a volume for the ''Fauna of British India" series. This will make the total number of species of Tipulidae known to exist in the Oriental region, over 370. an increase of over 150 per cent, on the number known only fifteen years ago ! ' Of th^se (about 140 in number), since Van der Wulp's catalogue is easily accessibl', it seems unnecessary to aid references, but references arc given to all species described since the publicaiion of that catalogue. These latter are forty-five in number.