BPvEKDING HAUNTS OF GLOSSINA MOKSITANS. 



359 



At Siiioinbi, tlie Siuyaum Jiiver is met by a tributary stream, and the valleys 

 run north, south and west. Along these valleys and on the actual banks oi; the 

 streams a number of fine shady trees are found which are in fxdl leaf in August, 

 and here tlie tsetses congregate. On the hills around, the forest is leafless and 

 affords but little shade. Puparia, for the most part empty, were found at the 

 bases of the shady trees, mostly on sharply sloping ground, but not invariably. 

 The list of the situations where the puparia were found is as follows : — 



(7) One empty ptiparium found at the base of an unidentified tree, on the 

 sharply sloping bank of the river ; position shaded by bushes : soil sandy and 

 loose, with much humus, etc. 



(8) Baobab tree {Adnnsnnia diffitota) on sharply sloping bank of river. Thirty- 

 nine empty cases and three live pupae were obtained, mostly under exposed roots 

 on the sloping side. Soil loose and sandy, with abundant humus, etc. (PI. XX, 

 fig. 2). Two empty cases and one live pupa were taken fi'om a small hollow in 



Fig. 1. — Another view of the Baoliab tree sh^ 



Plate XX, fi-. 



the trunk on the upper side of the tree, about 2 feet 6 inches from the surface of 

 the ground. The hollow was cup-shaped inside and full of humus. Numerous 

 empty pupa-cases of other Diptei'a and Lepidoptera were present and also living 

 specimens of each (text-fig. 1). 



^9) P>aobab on hill above the river. Four empty cases from hollows and 

 under roots on the sloping side ; soil loose and sandy, leaf mould abundant. This 



220RG F 



