164 



w. 



A. SANDS 







Range 



Mean 



Head width across eyes (W) . 



090-1 01 



0-938 



Ocellus (O w x Oi) . 



008-009 X 0-10-013 



0-084 x 0-118 



Ocellus to eye (O-E) 



005—007 



0061 



Postclypeus length (Pel) 



0-21-0-25 



0-231 



Antennal article III 



003-005 



0035 



Antennal article IV 



004-005 



0048 



Antennal article V 



004-005 



046 



Left mandible, apical to first 







marginal (L A ) 



007-009 



0082 



Left mandible, first to third 







marginal (Li) 



013-016 



0143 



Left mandible, third marginal 







to molar (L m ) 



007-008 



0070 



Right mandible, apical to first 







marginal (Ra) 



007-009 



0082 



Right mandible, first to second 







marginal (Ri) 



010-013 



O-III 



Right mandible, second mar- 







ginal to molar (R m ) 



007-008 



0-072 



Mesonotum width (M) . 



0-25-0-31 



0279 



Metanotum width (N) . 



0-29-0-34 



0306 



Worker. Head capsule pale yellow, pilosity yellow, sparse. Postclypeus moderately in- 

 flated, Pcl/W, 0-26-0-28. Apical teeth of mandibles short, La/Li, 0-53-0-58, Ra/Ri, 0-71-0-74; 

 subsidiary marginal tooth of left mandible with proximal end just clear of molar prominence 

 in surface view, complex ratio, La/Li. L m , 10-12-10-83; point of first marginal tooth of right 

 mandible distinctly behind line of apical to second marginal, anterior edge of first marginal 

 about half length of that of second, R A /Ri-Rm, 12-13-13-80. Fore tibia scarcely swollen, 

 Ti/T w , 4-72-5-00, third apical spur nearly vestigial, about one-quarter length of other two. 

 Mesenteric junction with proctodeum diagonal; enteric valve seating sessile on second pouch 

 of proctodeum, very nearly dorsal in unopened abdomen; enteric valve cushion in position 1 

 sclerotized throughout its length, half of which protrudes beyond tips of spines of other positions, 

 spines confined to dilated distal end, shaft smooth ; spines on rim of dilated end 30-40 in number, 

 middle portion of wider part inflated, with a second row of long spines, and scattered smaller 

 spines behind them; cushions in other positions with 3-6 elongated curved spines, evenly 

 tapered and almost straight at tips, few weakly hooked; membranous wall of valve beyond 

 and between cushions without detectable spicules. 



Measurements (two specimens from two localities) in millimetres. 



Head width (W) .... 0-75-0-85 



Fore tibia width (T w ) . . . 0-11-0-12 



Fore tibia length (Ti) . . . 0-53-0-59 



Postclypeus length (Pel) . . . 0-19-0-24 



Left mandible, apical to first marginal 



(La) ...... 0-07-0-08 



Left mandible, first to third marginal 



(Li) 0-13-0-14 



Left mandible, third marginal to 



molar (L m ) .... 0-05-0-06 

 Right mandible, apical to first mar- 

 ginal (Ra) ..... 0-07-0-08 



