DESCRirirOX of GLOSSINA PALLTCEUA. 79 



Glossina pal/palis is the darkest of all the species of Glossina, 

 and cannot well be confused with any other, with the exception 

 of Gl. pallicera, Bigot (q.v. for distinctive characters). 



As compared with Glossina morsitans, Westw., the inner 

 margins of the eyes in both sexes are more parallel, and the eyes 

 are usually wider apai't at the vertex. Moreover, from this 

 species, as from Gl. longipalpis, Wied., it is distinguished at once 

 by the entirely black hind tarsi. 



Glossina pallicera, Bigot. 



(Plate II.) 



Glossina pallicera, Bigot, Annales de la Socitste Entomologique de France, 

 Ann^e 1891, Vol. LX., p. 378. 



(J , 9 • Length, 8 millim. (3= lin.); length of wing, 8 millim. 



Brown ; thorax mouse-gray * with broimi, sometimes confluent 

 marJcings ; antennse orange-huff,'\ ; abdomen with no conspicuous 

 markings, except a narrow pale median triangle on the second 

 segment, and yellmvish-cinerous triangular lateral markings {scarcelij 

 visible from above) on the segments from the third to the sixth ; legs 

 pale ochraceous ; hind tarsi, and tips of last two joints of front and 

 middle pairs, dark brown ; wings hrown. 



This species can only be confused with Gl. palpalis, ll.-Desv., 

 from which it is at once distinguished by the colour of the 

 antennse. 



Head. — Fiontal stripe ochraceous ; frontal margins yellowish- 

 cinei'eous ; face buff, with a whitish shimmer ; palpi ochraceous- 

 l)uff, infuscated at the tips ; bulb at base of proboscis pale 

 ochraceous ; arista buff-coloured, dark brown on the under side 

 at the base. 



Thorax. — The pattern of the dark-brown markings is the 

 same as in Gl. palpalis ; in the single ? before me the markings 

 are more or less confluent, so that the dorsum of the thorax 

 appears of a mottled brown colour; the impressed suture and 

 remains of the cinereous stripe on each side of the confluent 



*■ Ridgway, "Nomenclature of Colors" (1886), PI. II. 

 . t I'^'d. PI. VI. 



