294 



ENTOMOLOGICAL NEWS. [Oct., 'o6 



Glossina palpalis wellmani: a new Tse-Tsc Fly 



which disseminates human trypanosomiasis. 



By F. C. Wellman. 



Published under the imprimatur of the Amer. Soc. Tropical Medicine. 



(Plate XII) 

 INTRODUCTION. 



When in London last year I was asked by the Dipterologist 

 of the British Museum, Mr. E. E. Austen, to see if I could 

 establish the presence of Tse-tse flies in southern Angola, from 

 whence no specimens had up to that time been received. On 

 arriving at Benguella I accordingly made a short journey up 

 the Katumbela River for this purpose, and succeeded in taking 

 a number of specimens of a fly, some of which I sent to Mr. 

 Austen for determination. I then supposed from my amateur 

 examination of the flies that they were Gl. palpalis Rob.-Des., 

 as I knew that this fly is the principal Tse-tse fly of the west 

 coast,* although I had received some specimens of what I 

 believed to be Gl. morsitans from the interior to the east.t I 

 have since received a letter from Mr. Austen, however, con- 

 cerning them, in which he writes as follows: "The present 

 specimens show that the form of Glossina palpalis found in 

 Benguella represents a new subspecies, distinct from the typical 

 form. I have therefore named it in your honor — Glossina pal- 

 palis wellmani!' Although Mr. Austen's systematic descrip- 

 tion of the flyt is available, yet in view of the probable future 

 importance of the animal to medical men practicing in south- 

 west Africa, I have thought it worth while to in these columns 

 call further attention to this new subspecies. 



Glossina palpalis wellmani Austen (1905), Ann. and Mag. Nat. Hist, ser. 

 7, vol. xv, April, 1905, p. 390. 

 o", $. — Frontal stripe pale ochraceous; thoracic markings much re- 

 duced, so that the thorax in a well- pre served specimen appears spotted, 

 the antero-lateral markings taking the form of spots or blotches; the 



*Vide Austen, A Monograph of the Tse-tse Flies, 1003, p. 75. 



Wide New York Medical Journal, August 12, 1005, p. 329. This 

 collection was accidentally destroyed but I have sent to the same district 

 for more. 



JAnnals and Magazine of National History, Ser. 7, Vol. xv, April, 

 1905, P- 390. 



