F. M. VAN DER WULP ON TSETSE. 193 



88. 1884. F. M. van der Wulp. 



"Iets ovEii DE Tsetse Vlieg (Glossina) " (Tijdschrift 

 voor Entomologie, Zeveii en Twintigste Deel, Jaargang 

 1883-84, pp. 143-150). 



Includes a short bibliography. See also op. cit., pp. 

 xci-xcii. 



89. 1885. J. M. F. Bigot. 



" Genre Glossina " {Annates de la Socieie Entomologique 

 de France, 6® Serie, Tome Cinquierae, pp. 121-124). 



Synoptic table of six supposed species, in French ; also 

 the original description of Glossina ventricosa. 



90. 1885. J. Mik. 



Wiener Entomologische Zeitung, IV. Jahrgang, pp. GO- 

 BI. 



An abstract of G. Schoch's paper, "Die Tsetse Fliege 

 Af rikas " [Cp. 83]. The writer draws attention to the 

 fact that there are three additional species of Glossina in 

 Africa, while a fifth species, Gl. ventricosa, Big., is said to 

 come from Austi-alia. [As has been shown in the systematic 

 portion of the present work, this is certainly a mistake.] 



91. 1885. F. M. van der Wulp. 



Tijdschrift voor Entomologie, Acht en Twintigste Deel, 

 Jaargang 1883-8.5, pp. ciii-cvi. 



Report of remarks by Heer van der Wulp, with subse- 

 quent discussion, at a meeting of the Nederlandsche 

 Entomologische Vereeniging, held Jan. 25, 1885. — Certain 

 previously published papers are quoted with a view to 

 showing that Tsetse bite is not the cause of the deaths of 

 cattle commonly attributed to it, or that, at any rate, the 

 Tsetse merely disseminates noxious influences. Van der 

 Wulp's own opinion, which he says he shares with Baron 

 Osten Sacken, the well-known Dipterist, is that, although 

 the cause of the mortality in cattle in Africa is not alto- 

 gether clear, it is not, or at least not exclusively, due to the 

 bites of Tsetse-flies, which in all probability are not more 

 poisonous than European blood-sucking gnats and flies. 

 A subsequent speaker (Heer Veth) considered it not 

 impossible that by means of the Tsetse, as by other blood- 

 sucking insects, highly-poisonous contagious matters are 

 conveyed into tlia blood- 



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