232 Records of the Indian Museum. [Voi,. VI, 



It is with the greatest pleasure that I sincerely thank those 

 gentlemen who have so kindly assisted me with notes on the types 

 of many of the species; information which has enabled me to 

 make the present paper far more complete than it would other- 

 wise have been. 



Through the kind introduction of my oldest friend in ento- 

 mology, Mr. C. O. Waterhouse, I have obtained from Mr. Hill a 

 very valuable series of notes on such types as repose in the 

 British Museum, these including the bulk of Walker's species, 

 Herr Handlirsch of the Vienna Museum has furnished me with most 

 useful information respecting such of Doleschall's types as remain 

 in the collection of that Institution, and Dr. F. A. Jentinck has 

 rendered me a like service concerning the types in the Leyden 

 Museum. Dr. J. C. de Meijere has supplied information respecting 

 types in the Amsterdam Museum, besides other notes of impor- 

 tance, whilst Prof. R. Gestro sent me a list of the species in the 

 Genoa Museum ; with their localities and the regret that they are 

 ''all in more or less mediocre condition." The useful notes from 

 Dr. A. Brauer of Berlin, Mr. Lundbeck of Copenhagen, Mr. Bedot 

 of Geneva and several others are incorporated, with due acknow- 

 ledgment, under the species they concern. 



A certain number of types are definitely known to be lost, 

 whilst many others, owing to the extreme fragility of the species 

 in this family, are reduced to mere fragments of no practical use 

 for identification, except as regards a few species where the con- 

 spicuous markings of the wings would probably determine the 

 species. 



Several of Doleschall's types I have been unable to trace; 

 Dr. Meijere writing me that they are certainly not in Holland, and 

 (respecting some of Van der Wulp's species) that this author's 

 collection was considerably damaged by anthrax, so that these are 

 probably lost. 



Of some of these species, however, there exist in the same 

 collection other specimens in better condition, these presumably 

 having been identified by means of the types before the latter 

 were reduced to fragments. 



A few of Osten Sacken's species described from the Philippine 

 Islands have not been traceable, and also some of Walker's, 

 described in his '' Insecta Saundersiana (Diptera)." Saunders's 

 collection was I believe disposed of in small portions in different 

 directions, and some of these are, apparently, not to be found. 



Subfamily PTYCHOPTERINAE. 

 PTYCHOPTERA, Mg. 

 Ptychoptera distincta, mihi, sp. nov. 

 9 . Darjiling. lyong. 9 mm. 



Head. — Frons, vertex and back of head, black: frons one- 

 fourth width of head. Epistome bulbous, shining brown, bare ; 



