19 



Glossina brevipalpis, Newst. (Austenina brevipalpis, Towns.) 

 (Plate III). Austen's diagnosis of this Tsetse-fly is as follows : " Large 

 species, somewhat resembling G. longipennis, Corti, but distinguished 

 inter alia by the front being narrower, and by the absence of a dark 

 brown ocellar spot, of a brown tip to the proboscis bulb, and of the 

 characteristic dark brown spots on the dorsum of the thorax ; dis- 

 tinguished from G. fusca, Walk., inter alia by the proboscis and palpi 

 being much shorter, the head (especially in the <^) distinctly wider 

 and in both sexes closer to the thorax, the front in the $ relatively 

 narrower, the frontal stripe and general coloration of the dorsum of 

 the thorax and of the wings paler, the usual longitudinal markings on 

 the dorsum of the thorax generally less strongly developed, the size 

 being often larger and the general appearance usually bulkier." 



Of the abdomen of G. brevipalpis Austen writes: "Dorsum dark 

 brown, first segment, and also second segment to a greater or lesser 

 extent, paler, ochraceous-buff or cinnamon-coloured, extreme hind 

 margins of second to sixth segments, inclusive, usually pale (cream- 

 buff), posterior angles of these segments drab-grey or smoke-grey, 

 dark brown area occupying third to sixth segments inclusive, some- 

 times distinctly broken up into a series of interrupted transverse 

 bands ; seventh segment in both sexes yellowish-grey or fawn-coloured 

 pollinose ; . . . . third, fourth and fifth segments very short 

 (shorter than corresponding segments in G. fusca)." 



As to the distribution of this species, Austen wrote in. 1911 : 

 " Glossina brevipalpis, to which the name G. fusca has hitherto been 

 applied in error; is the common large Tsetse-fly in many parts of south- 

 central and East Africa, but, although found in the Congo Free State 

 [Belgian Congo], it does not, so far as our present knowledge goes, 

 occur in West Africa proper. Reliable records and the data attached 

 to the specimens available for examination show that G. brevipalpis 

 exists in Portuguese East Africa, the Nyasaland Protectorate (where 

 it has a wide distribution, being abundant at certain seasons in and 

 near the Songwe Valley, at the north end of Lake Nyasa, besides 

 occurring in and on the edge of the Elephant Marsh, near the Lower 

 Shire River, to the south of the lake), North-Eastern Rhodesia (where 

 it has hitherto been met with only in the Luangwa Valley, in the 

 vicinity of Hargreaves (Chutika's), and in very small numbers), German 

 East Africa [Tanganyika Territory] (where it is found in large numbers 

 in the vicinity of Amani at the foot of the Usambara Mountains and 

 also elsewhere), the (British) East Africa Protectorate [Kenya Colony], 

 the Katanga district of the Congo Free State [Belgian Congo], 1 and in 

 Angola." 



Glossina medicorum, Austen. The following is the original 

 diagnosis of this species, as published in Austen's " Handbook " 

 (1911) : " Medium-sized, or in the ? sex (which, so far as may be 

 judged from the three specimens of each sex available for examination, 

 considerably exceeds the $ in size), fairly large species, allied and 

 presenting a superficial resemblance to G. brevipalpis, Newst., but 

 distinguished in both sexes by the wings having the appearance of 

 being uniformly coloured (the upper portion of the anterior transverse 

 vein, the posterior transverse vein, and the portions of the fourth 

 longitudinal vein, that in G. brevipalpis are conspicuously infuscated, 



1 According to Gerard (55), it is likewise found in Upper Lukuga, between 

 the R. Lualaba and Lake Tanganyika. 



