116 EKNEST WAKKEN. 



for many yards in the hope of finding- the queen and larvae. 

 The tunnels frequently run horizontally at a depth of about 

 18 in., Imt they sometimes reach a depth of even 2h ft. The 

 tunnels may open into little lenticular-cells about ^ in. high 

 and 2 in. in diameter ; the floor is flat, and a dozen or more 

 individuals may be found in the cell. From these cells three 

 or four tunnels may branch out in difl^erent directions. 



These termites cut grass, but it is not stored in the cells. 

 The only grass that was found occurred in a pocket of a 

 tunnel near tlie surface of the ground. 



Mr. Haviland noted that the workers in the deeper tunnels 

 were of the smaller kind, while those at or near the surface 

 were generally of the larger variety. The proportion of 

 soldiers to workers in the burrows was about one to four. 



C a 1 o t e r m e s d u r b a n e n s i s Haviland. 



This species was found in the Umbilo bush, Durban, also in 

 the Botanical Gardens. 



The body of a winged imago is strikingly like that of a 

 Avorker, and it is about 8 mm. in length. 



There is only one size of soldier and one of worker. 



The soldier is about 8 mm. long, and the breadth of the 

 head is about 1"8 mm. The number of segments of the 

 antennee varies from 10-14. In Calotermes the antenna3 

 are more inconstant in the number of segments than in 

 Termes. 



The worker is about 8 mm. long, and the breadth of the 

 head is about 1*5 mm. 



The termite lives in the trunks of trees, and they have 

 been found in orange trees, although it has been stated that 

 orange trees are not attacked by Calotermes. Burrows are 

 made in living wood, and the wood around the borings 

 becomes discoloured and decayed. The decay extends 

 further in the direction of the long axis of the fibres 

 (vertically) than in the transverse direction. 



At the time of swarming it has been noticed by Dr. Grassi, 



