OBSERVATIUNS ON SOJJE SOUTH AFEICAN TEKMITES. 431 



{2) there is only one basal scallop on tlie right mandible. 

 Much like that of mossambicus, except that (1) the cephalic 

 margin of the pronotum is distinctly notched, (2) the caudal 

 margins of all three shields are more retuse, (3) the basal 

 scallop of mossambicus is not curvate. 



Legs pale brown ; in the majority of cases I with 3, II 

 with 4, and III with 3 spurs; occasionally I with 2, 11 with 

 5 to 6, and III with 4. 



Abdomen.— Whitish brown, sordid, paler than that of 

 111 ossambicus. 



Worker. 



Measurements. — Head-width 2'7 to 4'2 mm. ; totallength 

 8 '5 to 13 mm. 



Head. — Vertex a dark choculate-bruwn or paler, dark 

 colour extending forward over median area of frons; mediad 

 and laterad of antennal fossae pale sordid brown ; incised 

 portion of clypeo-frontal suture indicated by well-defined 

 dark brown bands ; epistome translucent ; clypeus usually 

 pale or basal area darker, when pale the ridge brown; labrum 

 translucent^ a sordid yellow brown ; trochantin of mandible 

 pallid ; there is always a small white median dot in the apex 

 of a pale V line in the caudal darkened area of the frons. 

 Dorsal outline open (J-shaped; cephalic extremity broadened; 

 sides convex, tapering sharply and merging into caudal margin, 

 not bending in mai'kedly to trochantin of mandible ; Y-suture 

 distinct ; vertex flatly arched. 



Frons with cephalic area very flatly depressed, with a very 

 faint median carina in depression. 



Eyes black, sub-reniform. 



Ocelli quite obsolete, represented by faint shallow punc- 

 tures. 



Clypeus with median length of clypeo-frontal suture 

 obsolete; with a ti'ansverse cephalic ridge; epistome plate- 

 like, broad, sides tapering; cephalic margin straight with a 

 small median lobe. 



Antenna? pale or dark brown ; apical joints tapering. 



