126 EKNEST WARKEN. 



Swarming takes place in the afternoon about 3 pan. from 

 November to April. Sometimes it occurs after a shower, but 

 not necessarily so. When swarming-, the imagos fly around 

 some object, such as a bush, just like ants. On pairing, the 

 male attaches himself to the under surface of the abdomen 

 of the female with his head directed posteriorly. He now 

 generally contrives to shed his wings, and the female flies off 

 with him in the direction of the wind. 



Termes bilobatus Haviland. 



This species occurs in the higher districts of Natal up to an 

 altitude of about 4500 ft. It has not been met with at the coast. 



Winged imagos are 5*5 mm. long, head-breadth, 1"1 mm. 



Soldiers and workers are of one size only. 



The soldiers are 6"5 mm. long, head-breadth, 1'5 mm.; the 

 workers are 4'5 mm. long, head-breadth, 0*98 mm. 



Mr. Haviland never found more than about fifty soldiers in 

 a nest, and sometimes no soldiers at all were present. 



In fairly low altitudes the nests are practically on the sur- 

 face of the ground, and consist of a low mound of hard earth 

 with moderately large, thick-walled inter-communicating cells. 

 In high altitudes the termites occur, but no distinct nest has 

 been located. The nest is sometimes placed below the surface 

 of the ground, and in that case its limits are not well defined. 



Only one king and one queen are generally found in the 

 nest, and they can move freely about. Neoteinic forms have 

 been found on one occasion. 



At Ulundi (altitude 5000 ft.) Mr. Haviland found a king 

 and queen beneath a stone with a few workers. They were in 

 a concavity under the stone, which formed a cell for them. 

 No soldiers have been found at these high altitudes, and 

 mounds with hard material do not occur. 



Nymphs are present in the nest in the winter (May- 

 September), but during this season no eggs or larvte are to 

 be found. Even as early as May there may be winged imagos 

 in the nest, but it is not usual for them to fly before September. 



