170 W. A. SANDS 



Measurements (seven specimens from four localities) in millimetres. 



Range Mean ± S.D. 



Head width across eyes (W) . 1-04-1-30 I-I 77 ± 0-089 

 Ocellus (O w x Oi) . . . 0-08-0-13 x 0-11-0-15 0092 ± 0020 x 0-131 ± 0-016 



Ocellus to eye (O-E) . . 0-08-0-10 0-087 i 0-007 



Postclyepeus length (Pel) . 0-24-0-31 0-285 ± 0-022 



Antennal article III . . 003-008 °°45 i 0-017 



Antennal article IV . . 0-06-0-09 0066 ± 0-012 



Antennal article V . . . 0-05-0-08 0-064 ± o-on 

 Left mandible, apical to first 



marginal (La) • • • 0-09-0-10 0-096 ± 0-004 

 Left mandible, first to third 



marginal (Li) . . . 0-16-0-19 °' I 73 i o-oio 

 Left mandible, third marginal 



to molar (L m ) . . . 008-009 0085 + 0006 

 Right mandible, apical to first 



marginal (Ra) • • • 009-0-11 0100 i 0-005 

 Right mandible, first to second 



marginal (Ri) . . . 0-11-0-14 0-124 ± o-on 

 Right mandible, second mar- 

 ginal to molar (R m ) . . 008-010 0087 ± 0-007 

 Mesonotum width (M) . . 0-33-0-41 0-366 ± 0-038 

 Metanotum width (N) . . 0-33-0-43 0-380 ± 0-036 



Worker. Head capsule and pilosity pale yellow, setae sparsely scattered. Postclypeus 

 moderately inflated, Pcl/W, 027. Apical teeth of mandibles fairly long, La/Li, 0-70-0-71, 

 Ra/Ri, i-oo-i-oi ; subsidiary marginal tooth of left mandible separated from molar prominence 

 by deep notch in surface view, complex ratio La/Li. L m , 8-90-11-09; point of first marginal tooth 

 of right mandible slightly behind line of apical to second marginal, anterior edges of first and 

 second marginals equal, Ra/Ri-Riti, 14-99-15-05. Fore tibia slender, Ti/T w , 5-29-5-64, third 

 apical spur vestigial, even absent in some specimens, rarely in all of any nest series. Mesenteric 

 junction with proctodeum diagonal; enteric valve seating connected to second pouch of proc- 

 todeum by very short neck, dorsolateral in unopened abdomen; enteric valve cushion in position 

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

 positions, dilated end fringed with 15-18 (average 16-3) elongated spines, shaft and concave 

 surface of dilated end with scattered small spines, base of shaft weakly wrinkled transversely; 

 cushions in other positions with 3-5 (average 3-5) elongated curved spines, sharply tapered and 

 weakly hooked at tips, and smaller spines on remainder of length. Membranous wall of valve 

 beyond and between cushions with definite spicules fringing small lobes. 



Measurements (three specimens from three localities) in millimetres. 



Head width (W) 



Fore tibia width (T w ) . 



Fore tibia length (Ti) .... 



Postclypeus length (Pel) 



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 marginal to molar (R 



Range 



Mean 



0-94-0-99 



0-967 



— 



0-127 



0-69-0-71 



0-700 



0-25-0-27 



0-260 



O-IO-OII 



0-105 



014-015 



0-148 



006-008 



0071 



OIO-O-II 



0-107 



OIO-OII 



0106 



0-07-0-08 0-070 



