192 



solutiou — the last is a deodoriser and is harmless to plants. 

 Sodium arsenate is fatal to larvae, but dangerous to handle. 

 Quicklime, one litre of petroleum per cubic metre, renewed every 

 six months, or a mixture of equal parts of crude schist oil and 

 water, should be thrown into cesspools. The Entomological 

 Station at E-ennes has distributed a summary of the above sugges- 

 tions throughout Brittany, and in Florida the Health Bureau 

 has done the same, laying stress, inter alia, upon the cleansing 

 of spittoons and the keepiag away of flies from the sick. 



RouBAUD (E.). Supplement a la repartition et a la variation geogra- 

 phique des Glossines. [Further particulars as to the distri- 

 bution and geographical variations of Glossina.'\ — Bull. Soc. 

 Path. Ej-ot., Pari,, vi, no. 5, 14th May 1913, pp. 347-350. 



The author has made a careful study of the Glossina in the 

 collections of the Institute Pasteur and the Paris Museum. He 

 finds that the great majority of the specimens from the French 

 Congo are referable to G. tahaniformis, Westw. This species 

 is found at Sangha, Ogove, Lefini and Alima. The true fusca 

 appears to be rare on the Congo and the author only found one 

 example from the Upper Sangha. In Western Africa G. fusca 

 appeared to be distributed along the lower portion of the Ivory 

 Coast ; numerous specimens were found in the collections from 

 Little Bassam, Azaguie, the Lower Sassandra and Bingerville. 

 G. nigrofusca and G. viedicorum have been found at Azaguie, 

 and the latter occurs also in Lower Dahomey, in the Zou district. 

 The author also found on the wooded banks of this same river 

 G. jjalpalis and G. tachinoides. Amongst the specimens of 

 G. morsitans in the Museum were two G. ausfeni, Newst., taken 

 bj' Vasse, at Genge, in the Pungwe Yallev, Mozambique, in 

 1906. 



The author goes on to say that the study of the material at 

 his disposal showed that a given species varied considerably 

 according to its geographical distribution, especially in the 

 hypopygial characters. He considers that ISTewstead s name, 

 siihmorsitans, should be used to characterise the western form 

 of viorsitans in which the structure of the forceps of the hypo- 

 pygium is clearly peculiar. The distinction between these two 

 geographical sub-species is more or less comparable with, though 

 not so marked as, that which exists between the eastern G. palli- 

 dipes and the western G. longipalpis. 



G. palpalis is also diiferentiated into geographical forms. 

 Those in the damp forest regions of the west (Gabun, Middle 

 Congo, Lower Ivory Coast) are generally of larger size and 

 darker coloration ; some forms on the Lo^^•er Sangha are almost 

 black, and in all, the superior hooks of the hypopygium are 

 very strongly developed. The western forms found in the neigh- 

 bourhood of the French Sudan are generally smaller and lighter 

 in colour. The autlior himself has collected very pale, small 

 specimens at Bani, and says that the same form exists west of 

 the Niger between Buniba "and Kirtashi (130-14° J^. lat.). The 

 superior claspers of the hypopygium in this variety are much 



