OBSEKVATIONS ON SOME SOUTH AFRICAN TERMITES. 465 



right 2*2 mm. ; the left mandible is almost acicular ; the 

 antenna are XA^II-jointed, joints III and IV of the worker 

 XVIII-jointed fusing to form III of the XVII -jointed form. 



Worker. 



Measnrements. — Total length 7 to 11 mm.; head-width 

 3'1 mm. 



There appears to be only one caste, but the workers 

 may be gi-aded into three series upon the lengths of their 

 abdomens. 



Head. — Dark brown or dark reddish-brown, with clypeo- 

 frontal suture black, clypeus pale brown, epistome Avhite, 

 labrum-epipharynx yellow-brown. Dorsal outline U-shaped. 

 Vertex flatly arched, median region quite flat ; Y-suture 

 almost obsolete with paired elongate ocellus-like spots imme- 

 diately posterior to sutui-e and towards apices of arms (caudo- 

 mediad of antennal fossae). 



Frons with caudal area flat, with a round pit in fork of 

 Y-suture in which is a bright yellow spot ; cephalic area much 

 depressed posterior to clypeus ; this depression with a faint 

 median carina and a few transverse wrinkles. (If a submerged 

 specimen is examined, the face of a fox is distinctly pre- 

 sented on the frontal area, the pale spot in the pit in the fork 

 of the suture representing the nose.) 



Clypeus transversely elliptical, oval and bombous. 



Epistome plate-like, large with distal margin widely 

 rounded and with a large median lobe. 



Mandibles diffuse yellow-brown, teeth black. 



Antennas XVIII-jointed; joints II and III sub-ec^ual. 



Thorax and abdomen brownish-black. 



Hab. — Transvaal; Tzaneen, Barberton. 



A nest of this species was examined for the writer at 

 Tzaneen by Messrs. A. 0. D. Mogg and W. F. Behrens of 

 the Division of Botany. The king and queen together with 

 fungus-gardens were collected. The J" measures 13 mm. in 

 length, and has a head-width of 3 mm. ;' the female is 100 mm. 

 long, and both are characterised by crimson-brown heads ; the 



