138 Journal of the Asiatic Society of Bengal. [March, 1910. 



Nemestrinidce, Therevidce, Cyrtidce. — Probably but few 

 additions will be as yet made to these families. 



Asilidce. — Over 450 species were mentioned by Van der 

 Wulp. The family is likely to remain in its present state for 

 some considerable time, for until a complete examination of all 

 the types has been made, in conjunction with a very careful 

 study from a chsetotactic point of view, it would be wholly 

 unwise to describe new species. It has always been my desire 

 to attack this group, there being a considerable amount of 

 material at my disposal. 



Empidce. — Prof. Bezzi has added a score of new species l 

 to the half dozen described since 1896, when 12 only were 

 known. The few additional ones existing in the Indian Mu- 

 seum will be worked out by me on finishing the few papers 

 now approaching completion. 



Dolichopidce. — In this family extensive additions are cer- 

 tain. Of the 100 species recorded in 1896, a great number are 

 Walker's and must therefore be received with caution. Herr 

 Lichtwardt is at present identifying the Indian Museum 

 specimens, and some time ago, in separating them from the 

 mass of undetermined material, a casual inspection caused me 

 to estimate the number of species therein contained, at 

 least 50. 



In my own collection there are probably 20 to 30 species 

 collected by me in various parts of India and the Far East, 

 some of which are in all likelihood new. 



Pipunculidce , Platypezidce. — Some few additions have 

 been made ; in the former by Herr Kertesz, 2 and in my " New 

 Oriental Diptera" will be described nearly a dozen more. 



Syrphidce. — Certain genera in this family were revised by 

 me recently, 3 whilst Herr Meijere has dealt with certain other 

 genera and described over 40 new species in his studies on 

 South Asian Diptera. 4 Altogether, a little over 100 new 

 species have been described since 1896, but genera like Erista- 

 lis, Syrphus, Sphceropkoria , Syritta, Bacha, Graptomyza, and 

 some others, require careful and complete revision, for the 

 reason that a number of well-known palaearctic species 

 occur in the east (at least in the Himalayas, some extending 

 also to the plains), either in typical or slightly varietal form. 

 A number of new species are still at my disposal. 



Conopidce. — Judging from the descriptions, the 14 des- 

 cribed species appear distinct; to these will be added three or 

 four others. 



Oestridce. — Apparently only 4 species known from the East. 



1 Ann. Mus. Hung., ii, 320. 



* Ann. Mus. Hung., i, 465. 



8 Notes on Oriental Syrphidse, i, Rec. lad. Mus., vol. 

 XI, XII, XIII), vol. ii, 49-96, text, 42 sp. nov. described. 



* Tijd. v. Ent.,ii. 



