i66 



W. A. SANDS 



postclypeus moderately to strongly inflated, Pcl/W, 0-28-0-34, posterior margin evenly rounded, 

 median suture weakly developed or near absent. Apical teeth of mandibles short, L A /Lj, 

 0-50-0-60, Ra/Ri, 0-70-0-84; subsidiary marginal tooth of left mandible well clear of molar 

 prominence in surface view, complex ratio, LA/Li-L m , 5-33-7-72; points of apical and marginal 

 teeth of right mandible almost in line, anterior edges of first and second marginals about equal 

 in length. Meso- and metanota moderately wide at constriction, M/W, 0-28-0-34. Pilosity 

 of head brown, pelt with uneven emergent setae. 



Measurements (six specimens from six localities) in millimetres. 



Head width across eyes (W) 



Ocellus (O w xOi) . . . 0-07 



Ocellus to eye (O-E) 



Postclypeus length (Pel) . 



Antennal article III 



Antennal article IV 



Antennal article V . 



Left mandible, apical to first 

 marginal (La) 



Left mandible, first to third 

 marginal (Li) 



Left mandible, third marginal 

 to molar (L m ) 



Right mandible, apical to first 

 marginal (Ra) 



Right mandible, first to second 

 marginal (Ri) 



Right mandible, second mar- 

 ginal to molar (R m ) • • 0-08-0-09 



Mesonotum width (M) . . 0-31-0-40 



Metanotum width (N) . . 0-34-0-40 



Range 

 110-1-23 

 -009 x 0-09-0-13 

 0-07-009 

 0-24-0-27 

 003-005 

 005-006 

 0-06-0-08 



008-01 1 



0-16-0-19 



0-08-0-09 



009-010 



0-12-014 



Mean ± S.D. 

 1-161 ± 0049 

 0077 ± 0006 x 01 1 1 ± 0007 

 0080 ± 0-007 

 0254 ± OOI 5 

 0043 ± 0006 

 0058 ± 0005 

 0064 ± 0006 



0094 ± 0007 

 0174 ± 0010 

 0084 ± 0-006 



0095 ± 0005 



0128 ± 0-007 



0-083 i 0005 

 0360 ± 0029 

 0-375 ± 0-017 



Worker. Head capsule pale yellow, pilosity yellow, sparse. Postclypeus weakly to 

 moderately inflated, Pcl/W, 0-24-0-28. Apical teeth of mandibles fairly short, or a little longer, 

 La/Li, 0-64-0-73, Ra/Ri, 0-86-0-93; subsidiary marginal tooth of left mandible separated from 

 molar prominence by distinct notch in surface view, complex ratio, La/Li. L m , 10-28-13-06; 

 point of first marginal tooth of left mandible slightly behind line of apical to second marginal, 

 anterior edges of first and second marginals approximately equal, or first slightly shorter, 

 Ra/Ri-Riti, 13-68-17-10. Fore tibia slender, Ti/T w , 5-35-5-90, third apical spur minute, 

 vestigial, even absent in some specimens though seldom in all of one nest-series. Mesenteric junc- 

 tion with proctodeum slightly longer than diagonal; enteric valve seating with very short neck, 

 nearly dorsal in unopened abdomen; enteric valve cushion in position 1 sclerotized throughout 

 its length of which about half protrudes beyond tips of spines of other positions, dilated end 

 ringed with 23-38 (average 29-4) elongated spines, shaft and concave surface of dilated end with 

 scattered small spines, base of shaft wrinkled transversely; cushions in other positions with 

 1-10 (average 5-1) elongated curved spines, weakly hooked at tips, and smaller spines on re- 

 mainder of length; membranous wall of valve between and beyond cushions without detectable 

 spicules. 



Measurements (five specimens from five localities) in millimetres. 



Head width (W) 

 Fore tibia width (T w ) 

 Fore tibia length (Ti) 



Range 

 0-91-0-98 

 0-12-013 

 0-66-0-74 



Mean ± S.D. 

 0-948 -t 0-029 



0-122 ± 0-003 

 0-695 ± OO39 



