22 ROBERT NEWSTEAD A REVISION OF THE T8ETSE-FLIES (GLOSSINA), 



gradually attenuated and falciform ; bristles very long on both sides, and the 

 pubescence extending to the dark chitinous jjortion near the apex. Inferior claspers 

 (ic) relatively very small, and narrowly rounded apically ; they are also placed 

 much nearer the articulation of the hypopygium, and as seen in the dorso-ventral 

 position (fig. 8, »'c) the tips overlap so that a dark ovoid area is presented ; 

 bristles long and slender, extending considerably into the broadly dilated or 

 proximal portion. Harpes (h) with the larger process broadly bilobed and 

 completely covered with large squamose spines. 



Unfortunately the only two preparations in oar possession are mounted so as 

 to give a dorso-ventral view, and Ln this position it is impossible to give further 

 details of the other morphological characters. Be this as it may, the species is 

 markedly distinct from the other tsetse-flies belonging to this group, and, apart 

 from the S230tted character of the thorax, the males of Glossina longipennis may 

 be easily distinguished by the curious squamiform harpes, and the position of the 

 relatively small and overlapping inferior claspers. So soon as fresh material 

 comes to hand further details will be given, together with drawings of the 

 arm-ature in profile, so that they may be compared with those of the other 

 members of the fusca group. 



Glossina maeulata, Newstead. 



The type and only known example of this insect is unfortunately a female ; 

 otherwise I would sacrifice it so that its specific identity could be more definitely 

 established. It is nearly related to Glossina jJaljialis, but in its colour and 

 pattern is so markedly distinct as to be recognised from the latter without any 

 difficulty. It has been suggested that the characteristic dusky spots are due to 

 secretion from other flies which were enclosed in the same packet. This inter- 

 pretation I cannot accept, as the spots are not due to any such foreign matter. 



Glossina palpalis, Rob.-Desv. 



Genital armature of the male (fig. 9). Superior claspers {sc} widely separated 

 and connected by a membrane (cm) ; distal extremity suddenly attenuated and 

 tooth-like ; there are numerous long bristles on both sides of each clasper, but 

 those on the inner lateral margin gradually shorten towards the apex ; there is 

 iisually one rather long bristle near the base of the tooth-like projection. 

 Connecting membrane {cm) deeply divided centrally, and not nearly reaching the 

 tips of the claspers ; it is partly covered on both sides by minute spines. 

 Editum (e), or lappet-like extension of the body wall, with relatively short 

 bristles, the longest of which extends midway between the edge of the editum 

 and the juxta. Inferior claspers (;c) broad and spinose basally ; apices greatly 

 extended, the extension taking the form of a long leg-like process with a 

 suddenly dilated extremity, shaped somewhat like a human foot, and furnished 

 with a few minute spines along its lateral margin ; these appendages are deeply 

 folded basally (not shown in figure), and on either side is a relatively large 

 beak-like extension, often apparently a folded extension of the clasper. Harpes 

 (/() represented by minute narrow curved strips of chitin which curve upwards so 

 that the ends in some instances almost touch the lobe-like extensions of the 



