154 A licvmed Synojisis oj the T.-^clse-FHi's. 



specimens kindly submitted to the writer by Dr. Briiin|)t 

 liimself and also by Prof. Mesnil, of the Listitut Pasteur, 

 k-aves no doubt of their identity. The synonymy of GL 

 tachinoides is therefore as follows: — 



Glossina tachinoides, Westw. 



Glossiua tachitwides, "VVestwood, Proc. Zool. Soc. Lond. pt. xviii. p. 2()7, 

 pi. xix. lig. 2 (1850) ; Ann. & Ma^. Nat. Hist. ser. 2, vol. x. p. 147 

 (1852 J. 



Glossina Decorsei, Brumpt, Couiptes rendus des seances de la Socitile 

 de Biologie (Seance du 16 avril, 1904), t. hi. p. 028. 



Dr. Brumpt's speciiuens were obtained not long ago by 

 Dr. Decorse in the b isin of the River Sliari and on the shores 

 of Lake Chad, into which the river falls. Seven of the series 

 collected by Dw Decorse have been presented to the Britisii 

 Museum by Prof. Mesnil and Dr. Brumpt; the National 

 Collection has also received a single specimen of GL tachi- 

 noides from the neighbourhood of Wusliishi, Kadima River 

 Valley, N. Nigeria, where it was obtained in the beginning 

 of March, 1904, by Dr. S. H. Jones. 



The lollowing interesting tield-uotes have been kindly 

 supplied to the writer by Mr. Gowers : — '' Ghssiaa tachi- 

 noides is found along the course of the Benue River between 

 Lau and Lokoja. No horses or cattle can be kept in this 

 area, except in one or two small spots. Above Lau, how- 

 ever, the river-banks are swarming with cattle, and there arc 

 large encampments of herdsmen in the dry season. After 

 the rains have commenced the fly is present on the river in 

 sufficient numbers to be an annoyance to travellers, and it 

 continually bites the canoe-men. In the dry season, however, 

 which lasts from October to April, it is much less numerous. 



" The game found on the Benue River in the area in 

 question, and on which the fly probably feeds, consists chiefly 

 of Kohus koh. On the banks of the river this is almost the 

 only species, and it is very numerous indeed. West-African 

 buflalo, waterbuck, and reedbuck are found in the swamps 

 near tlie river ; but in tlie Benue Valley there are, in the 

 immediate vicinity of the river, more kob than specimens of 

 all the other species of game put together.''^ 



According to Brumpt [loc. cit. p. 629), in the basin of tho 

 Shari River and on the shores of Lake Chad Gl. tachinoides 

 ajtpears to be confined to the watei-'s edge. 



From Mr. Gowcrs^s statements there can be little doubt 

 that GL tachinoides^ like GL viorsitans^ pallidipes, antX longi- 

 i/cnnis, and possibly other species as- well, is cajjablo of 



