450 CLAUDE FULLER. 



Legs concolorous with abdomen ; last joint always longer 

 than the remaining three taken together. Tibia of I with 3, 

 II with 4, and III with 2 spurs. For a series this 3, 4, 3 

 feature is fairly constant. 



Abdomen. — A bright golden yellow and always in sharp 

 contrast with head. 



Worker. 



Measurements. — Total length 6 to 8'5 mm. ; head-width 

 1*6 to 3 mm. 



Head. — Reddish-yellow or chestnut-red; when pale, 

 colour uniform, Y-suture paler, eyes black and in strong 

 contrast, aerolate yellow patches at ocelli ; when dark, colour 

 uniform but Y-suture not pale, ocelli areas pale, clypeuspale. 

 Surface highly polished. Dorsal outline broadly U-shaped ; 

 cephalic extremity broadened; sides nearly straight and 

 parallel, bent in sharply to trochantiu of mandible ; vertex 

 rather roundly arched. 



Frons twice depressed ; caudal depression very shallow ; 

 cephalic depression merging into clypeus and with a median 

 elevation ; cephalic and caudal depressions separated by a 

 low transverse ridge. 



Eyes dark chestnut brown, sub-reniform. 



Ocelli obsolete, represented by pale spots. 



Clypeus differentiated from frons by a transverse furrow ; 

 cephalic margin straight and elevated, forming with the 

 epistome a transverse ridge ; epistome translucent, cephalic 

 margin narrow, faintly curvate, sides oblique. 



Labrum a bright orange-yellow. 



Antennae pale yellow throughout ; joints annular to half the 

 length, then broad and short, then elongate. Apical portion 

 tapering very faintly. 



Thorax. — Concolorous with abdomen; cephalic margin of 

 pronotum arched, acutely curvate and eutire ; processes 

 deeply incised at junction with arch of cephalic margin ; 

 caudal margin widely bilobed. 



Mesonotum long and broad ; caudal margin broader than 



