154 A Revised Synopsis of the Tsetse-Flies. 



specimens kindly submitted to the writer by Dr. Brumpt 

 himself and also by Prof. Mesnil, of the Institut Pasteur, 

 leaves no doubt of their identity. The synonymy of GL 

 tachinoides is therefore as follows : — 



Glossina tachinoidesj Westw. 



Glossina tachinoides, Westwood, Proc. Zool. Soc. Lond. pt, xviii. p. 267, 

 pi. xix. fig. 2 (1850) ; Ann. & Mas-. Nat. Hist. ser. 2, vol. x. p. 147 

 (1852 J, 



Glosdiui Decorsei, Brumpt, Comptes rendus des seances de la Soci^te 

 de Biologie (Seance du 16 avril, 1904), t. hi. p. 628. 



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

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

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

 collected by \}y. Decorse have been presented to the Britisii 

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

 Collection lias also received a single specimen of GL tachi- 

 noides from the neighbourhood of Wushishi, Kadima River 

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

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



The iollowing interesting field-notes have been kindly 

 supplied to the writer by Mr. Gowers : — " Glossina 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 are 

 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 tlie Benue River in the area in 

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

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

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

 buffalo, waterbuck, and reedbuck are found in the swamps 

 near the river ; but in the 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 the 

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

 appears to be confined to the water^s edge. 



i^^•om Mr. Gowers^s statements there can be little doubt 

 that GL tachinoides, like GL niorsitans, pallidijyes^ and longi- 

 pennisj and possibly other species as well, is capable of 



