132 ME. E. E. AUSTEN OK NEW DIPTEROUS INSECTS. [Jan. 17, 



Fig. 22. Telcsto perronii (antenna and palpi X 2), p. 73. 



23. 3fofasiiiffha dirphia (antenna and palpi X 2), p. 73. 



24. Ceratrichia phocion (antenna and palpi X 2),_p. 117. 



25 a, J. lamhrix salsala (antenna and palpi X 2), p. Vf). 



26 a, h. Apaiistus mencs (antenna and palpi X 2), p. 9(i. 



27 a, b. Adopaa thaumas (antenna and palpi X 2), p. 98. 



28. Baoris oceia (antenna and palpi X 2), p. lOfi. 



29. Parnara mathias (antenna and palpi X 2), p. 10.5. 



30. Gegenes nostrodamiis (antenna and palpi X 2), p. 104. 



2. Descriptions of New Species of Dipterous Insects of the 

 Family Syrphida in tlie Collection of the British 

 Museum, with Notes on Species described by the 

 late Francis Walker. — Part I. Bacchini and Brachyo- 

 piNi. By E. E. Austen, Zoological Department, British 

 Museum. 



[Received December 2, 1892.] 

 (Plates IV. & V.) 



The following is intended to be the first of a series of papers on 

 the Syrphidce. in the Collection of Diptera in the British Museum. 

 For some time past I have been engaged in working on these 

 Insects, and it was my original intention not to publish anything 

 upon the subject until the re-arrangement of the Family had been 

 completed. But since it has been urged upon me that a saving 

 of time is effected by writing about a group ^hile it is fresh in 

 one's memory, I have decided to begin the preparation of these 

 papers at once. This is the reason why I have commenced in the 

 middle of the Family. 



Appended is a list of the species now to be described, with their 

 habitats. 



Ethiopian Eegion. 

 Bhingia semi-carulea, p. 162 Sierra Leone. 



Oriental Eegion. 



Baccha mibilipeimis, p. 136 Ceylon. 



„ triangiiUfera, p. 138 ,, 



„ pulchrifrons, p. 139 „ 



„ fallax,Y>. 142 



,, amphitlioe, p. 142, Wlk. (re-described) ... Mulmein, Sarawak, 



Ceylon. 



Australian Region. 



Baccha hicolor,T^.\Zl Mysol. 



„ refulgens, p. 138 Bouru. 



„ sM^ica, p. 144 Sula Is. 



