150 W. MILNE ON THE 



were seen adhering to the trunk. It is rather a sluggish creeper, 

 with a very deliberate slow pull-up of the foot. It seems to avoid 

 the open, and to prefer to withdraw under shelter ; and on 

 account of this habit, and its small size, it is very difficult to 

 examine. 



The rostrum is very narrow, but the double lamella is quite 

 prominent. The antenna is long and stout, and has very charac- 

 teristic brushes of setae. These brushes are extremely long, and 

 always show the same graceful curve, and so .clear are they that 

 they are easily distinguished with a 1 inch objective. There are 

 prominences on each side of the antenna, like those seen on the 

 spined varieties of Macrotrachela. The dental bulb is heart- 

 shaped and there are two teeth. 



The foot is short and the ankle very narrow. The spurs are 

 rather short, and have their outer borders convex and the inner 

 curves concave, producing a converging effect. 



The shape and character of the antenna brushes and the spurs 

 are very constant and distinctive. 



The corona is equal in width to the prominent collar, and the 

 sulcus is extremely narrow on the ventral side, the wheels almost 

 approaching each other. The upper lip is glaucous, and re- 

 fraction from parts below causes optical difficulties. What 

 appears to be the upper lip consists of a triangle over an oblong. 

 It is not easy to make sure whether the oblong belongs to the 

 upper lip or is part of the rest of the corona. The apparent 

 upper lip shows fully higher than the corona, broad across. 

 A\^ien the lip is looked straight down upon — that is, when the 

 animal is feeding in a perpendicular position — the upper edge is 

 convex dorsally and shows three parts (PI. 10, fig. Ic). The 

 middle part seems to be the cross section of the triangular part 

 lying on the oblong. The triangular part was not always 

 well seen. The oblong may possibly be a high ridge from wheel 

 to wheel crossing the sulcus, and shown up by the triangular part. 

 The base of the upper lip is thick and raised like a frill. 



Habitat. — Not very often seen, but possibly common enough, 

 as I saw samples from three different places. They are easily 

 overlooked on account of their small size and their habit of 

 resting under the rubbish. 



Found in ground or rock moss Grahamstown, also Euphorbia 

 Kloof and Draaifontein farm, Uitenhage district. 



