A shower of rain set the driver ants on the move, and about two hours after we had turned in we were overwhelmed by them.

They are called Kalandu or Nkalanda.
To describe this attack is utterly impossible.

I wakened covered with them: my hair was full of them.

One by one they cut into the flesh, and the more they are disturbed, the more vicious are their bites; they become quite insolent.

I went outside the hut, but there they swarmed everywhere; they covered the legs, biting furiously; it is only when they are tired that they leave off.
One good trait of the Balungu up here is, they retire when they see food brought to anyone, neither Babisa nor Makoa had this sense of delicacy: the Babemba are equally polite.
We have descended considerably into the broad valley of the Lake, and it feels warmer than on the heights.