82 DESCRIPTION OF GLOSSINA MOESITANS. 



in the median line, not reaching the lateral margins, and not ex- 

 tending beyond the basal three-fourths of each segment, if so far ; 

 tips of the last two joints of the front and middle tarsi dark brotcn 

 vr black, sharply contrasting with the rest of the leg. 



JJead. — Pale yellow, occipital surface entirely clothed with 

 cinereous dust ; frontal stripe varying from buff to ochraceous, 

 face paler, clothed at the sides and below with yellowish silvery 

 ilu&t ; sides of front and ocellar triangle also clothed with yellowish 

 or gi'eyish-yellow dust ; a more oi* less distinct dark brown spot 

 on each side of the front below, and the upper portion of the 

 frontal stripe also sometimes infuscated ; base of each vertical 

 bristle marked with a -dark-brown spot, but not connected by a 

 dark-brown band ; bristles on the vibrissal ridges not extending 

 higher than the middle. Chitinised patches in roof of buccal 

 cavity brown. Antennse greyish-buff to cinereous, third joint 

 often strongly infuscated, except at the extreme base ; second 

 joint usually more or less brown in front, except at the tip ; 

 arista buff, dark-brown at the base beneath. Bulb at base of 

 proboscis dark-brown to reddish-brown. Palpi buff, more or less 

 cinereous above, the tips infuscated. 



Thorax. — The markings on the dorsum are vestiges of those 

 described in the case of Gl. palpalis ; they are usually more or 

 less indistinct ; pleurae cinereous ; in rubbed specimens the dorsum 

 may appear reddish-brown. Scutellum buff, with the usual patch 

 on each side of the median line greyish-brown. 



Abdomen. — In addition to the interrupted dark-brown bands, 

 an ill-defined brown patch on the second segment on each side, 

 not extending to the lateral or hind margins; the dark-brown 

 interrupted bands taper towards the lateral margins, and at 

 the median interruption, though sometimes straight-cut, are 

 generally more or less rounded off; on the posterior angles of 

 the segments the pale hind margins are continuous with what in 

 Gl. palpalis and Gl. pallicera are the lateral triangles ; seventh 

 segment and hypopygium in the ^ cinereous buff; seventh 

 segment in the $ with a more or less distinct indication of 

 the interrupted dark-brown band at the base. 



Legs buff-coloured, the front femora on the inside, the middle 

 and hind femora on the outside more or less infuscated ; some- 

 times a small dark patch on the outside of the front femora also 

 beyond the middle; hind tarsi with the last two joints (except 

 the extreme base of the penultimate) entirely black. 



