G. LONGIPENXIS : DISTINCTIVE CHARACTEES. 105 



•disseminated by it are known to the natives by the name 

 " aino," Glossina longipennis was the only Tsetse encountered' by 

 him from July to October, 1901. A field-note attached to the 

 specimen obtained in West Somaliland by Mr. C. Y. A. Peel, 

 as mentioned above, says : — " Fly-belt sharply defined from 

 Biermuddo to Boholo Deno." 



Bionomics. 



No observations on the bionomics of Glossina longipennis 

 have yet been placed on record. It ma}' be pointed out, however, 

 that the note attached to the specimen taken by Mr. R. B. 

 Woosman ax, the Tsavo River, East Africa Protectorate {vide 

 supra), shows that the present species, like 6^. hrevipalpns, Newst., 

 and G. pallidipes, Austen, enters railway carriages on the Uganda 

 Railway.* 



Preliminarv Stages. 

 Not yet observed. 



Affinities and Distinctive Characters. 



Glossina longipennis, Corti, which belongs to the Glossina 

 hrevipalpis group, is one of the most easily recognisable of the 

 known Tsetse-flies, since the characteristic and distinctive dark 

 brown spots on the dorsum of the thorax, and the sharply 

 defined brown or dark brown tip to the proboscis bulb sufiice to 

 prevent it from being mistaken for any other species of its genus 

 jet described. Further points of difierence from G. hrevipalpis 

 Newst., the only species with wdiich G. longipennis can possibly 

 be confused, are mentioned in the diagnosis printed in italics 

 ^bove. 



* Sec also p. 62. 



