THE SOLDIERLESS TERMITES OF AFRICA 119 



mandible separated from molar prominence by distinct notch in surface view, complex ratio, 

 La/Li. L m , 7-53; points of apical and marginal teeth of right mandible approximately in line, 



anterior edges of first and second marginals nearly equal. Meso- and metanota moderately 



wide at constriction, M/W, 0-30. Pilosity of head capsule pale brown, rather even, almost a 

 pelt with longer emergent setae. 



Measurements (one specimen) in millimetres. 



Head width across eyes (VV) . . 121 

 Ocellus (O w x Oi) . . . 0-09 x 0-13 

 Ocellus to eye (O-E) . . . 009 

 Postclypeus length (Pel) . . 0-31 

 Antennal article III . . . 005 

 Antennal article IV 006 

 Antennal article V . . . 006 

 Left mandible, apical to first mar- 

 ginal (L A ) . . . . on 

 Left mandible, first to third mar- 

 ginal (Li) .... 018 

 Left mandible, third marginal to 



molar (L m ) .... 008 

 Right mandible, apical to first mar- 

 ginal (Ra) .... 010 

 Right mandible, first to second 



marginal (Ri) .... 0-14 

 Right mandible, second marginal 



to molar (R m ) • • • 0-08 



Mesonotum width (M) . . . 0-37 



Metanotum width (N) . . . 038 



Worker. Head capsule yellow-white, pilosity very sparse, inconspicuous pale yellow; 

 postclypeus moderately inflated, Pcl/W, 0-30, Pcl/Ri, 2-45. Apical teeth of mandibles fairly 

 short, L A /Li, o-66, Ra/Ri, 0-85; subsidiary marginal tooth of left mandibles just clear of molar 

 prominence in surface view, complex ratio La/Li. L m , 9-95; point of first marginal tooth of 

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

 second marginals approximately equal, RA/Ri-Rm. I2 "85- Fore tibia scarcely swollen, T]/T w , 

 4-96, third apical spur small but clearly present, not vestigial. Mesenteric overlap at junction 

 with proctodeum diagonal, to right of malpighian knot; enteric valve seating ventral in un- 

 opened abdomen, with three pronounced lobes, third lobe slightly smaller, attached to second 

 pouch of proctodeum by very long neck; membranous wall of valve beyond cushions with 

 minute spicules. 



Measurements (one specimen) in millimetres. 



Head width (W) .... 0-95 



Fore tibia width (T w ) . . . .0-15 



Fore tibia length (Ti) . . . .0-73 



Postclypeus length (Pel) . . . 0-29 



Left mandible, apical to first marginal (La) 010 

 Left mandible, first to third marginal (Li) . 0-15 

 Left mandible, third marginal to molar 



(L m ) 0-07 



Right mandible, apical to first marginal 



(Ra) 010 



Right mandible, first to second marginal 



(Ri) 012 



Right mandible, second marginal to molar 



(Rm) 0-07 



