172 W. A. SANDS 



Measurements (two specimens from one locality) in millimetres. 



Head width across eyes (W) 



1-16-1-24 



Ocellus (O w x Oi) . 



0-11-0-12 x 015 



Ocellus to eye (O-E) 



003-005 



Postclypeus length (Pel) 



031-034 



Antennal article III . 



004-005 



Antennal article IV . 



0-05-0-06 



Antennal article V . 



005-006 



Left mandible, apical to first marginal 



(La) 



010 



Left mandible, first to third marginal 



(Li) 



016-018 



Left mandible, third marginal to molar 



(L m ) 



008-009 



Right mandible, apical to first marginal 



(Ra) .... 



010 



Right mandible, first to second mar 





ginal(R,) .... 



0-11-0-13 



Right mandible, second marginal to 



molar (R m ) .... 



0-08-0-09 



Mesonotum width (M) 



0-35-0-37 



Metanotum width (N) 



038 



Worker. Head capsule pale yellow, pilosity yellow, sparsely scattered. Postclypeus moder- 

 ately inflated, Pcl/W, 030. Apical teeth of mandibles fairly long, La/Li, 0-72-0-74, Ra/Ri, 

 0-96; subsidiary marginal tooth of left mandible separated from molar prominence by deep 

 notch in surface view, complex ratio, La/Li.Lmi, 11-19-11-50; points of apical and marginal 

 teeth of right mandible very nearly in line, anterior edge of first marginal slightly longer than 

 that of second, equal if worn, RA/Ri-Rm, 13-52-15-27. Fore tibia slender, Ti/T, v , 5-20-5-64, 

 third apical spur smaller than other two, vestigial or up to nearly half their length. Mesenteric 

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

 of proctodeum, dorsolateral in unopened abdomen; enteric valve cushion in position 1 sclerot- 

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

 dilated and fringed with 15-23 (average 18-5) spines, shaft and concave surface of dilated end 

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

 positions with 2-7 (average 4-3) elongated curved spines, sharply tapered and distinctly 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 (two specimens from one locality) in millimetres. 



Head width (W) . 



Fore tibia width (T w ) . 



Fore tibia length (Ti) 



Postclypeus length (Pel) . 



Left mandible, apical to first marginal 

 (L A ) • • • 



Left mandible, first to third marginal 

 (Li) 



Left mandible, third marginal to 

 molar (L m ) .... 



Right mandible, apical to first mar- 

 ginal (R A ) 



0-91-0-98 



013 

 0-65-0-72 

 0-27-0-29 



Oil 



006-007 



