Jan., *08J ENTOMOLOGICAL NEWS. 27 



only is found. In the intermediate somewhat cooler regions 

 (Cazengo, Golungo-Alto, Ambaca, etc.) Gl. palpalis palpalis 

 and Gl. palpalis well ma ni are found side by side, while in the 

 comparatively cool southern part of the province (Catumbella, 

 Kubal and Cunene rivers, etc.) Gl. palpalis wcllmani is found 

 alone. From recent observations it appears that wellmani 

 exists as far east as Lake Muero and the Dikulwe and Lufira 

 rivers in the Congo Free State, and when sufficient additional 

 observations are recorded they will probably prove that the 

 fly extends right across Africa. This new 7 subspecies of 

 tse-tse fly has been proven to transmit human trypanosomiasis 

 and is thus directly connected not only with the development 

 of the country but also with the very existence of the native 

 races. I have elsewhere published papers on the habits * and 

 geographical distribution t of this fly. 



3- 



No. 635. Phoncr gates bicoloripes Stal. (Hemipt.) 

 This fine Heteropteron belongs to the Reduviidse and has 

 habits similar to Opisccrtns personatits L. except that instead 

 of preying on Clinocoris lectularins, P. bicoloripes pursues a 

 blood-sucking tick (Ornithodoros inonbata Murray) catching 

 it and mulcting it of its ill-gotten food. There would seem to 

 be no doubt that this bug preys especially on O. moubata as 

 I have taken several in the act and (while I have collected 

 many African Reduviidse) have never seen the one in question 

 except in native kraals, which swarm with ticks, and have 

 never found other species sucking the ticks. While various 

 Reduviidae will fly to light at night, yet P. bicoloripes is the 

 only local species I know of which actually lives in houses. 

 O. moubata is one of the most persistent and troublesome 

 suckers of human blood in Africa, its bite being very painful, 

 to say nothing of the fact that it transmits human spirochre- 

 tosis and filariasis. So the bug under discussion would be of 

 interest even were it not that it is itself capable of inflicting a 



* Notes on the Habits of Tsetse-flies, Annals and Magazine of Natural History, S> pt . 

 1906, p. 242. 



t Neue Bcobachtungen ueher die geojjraphische Vcrbreitung von Gl<*i>ia f>al/>alis 

 Roh.-Desv., Deutsche KntomoloRische Xeitschrift, Feb. 25, 1907, p. 199. 



