THE SOLDIERLESS TERMITES OF AFRICA 



209 



Anenteotermes hemerus sp. n. 



(Text-figs 540-543 & 554-559 \ PI- 7- fig- 8) 



Imago. Head capsule dark sepia-brown, darker above ocelli; fontanelle short oval, about 

 half as large as ocellus, slightly depressed, brown; medial spot oval, flat, smaller than fontanelle, 

 coloured as head; postclypeus sepia-brown, labrum yellow-brown; frontal marks flat crescents, 

 coloured as head; antennal yellow-brown. Pronotum sepia-brown, meso- and metanota 

 yellow-brown, transverse suture only present on mesonotum; femora pale yellow-brown, tibiae 

 and tarsi yellow. Abdominal tergites and dorsal and ventral stigmata brown, sternites pale 

 brown laterally, paler in middle; cerci yellow. 



Posterior margin of head capsule evenly rounded; ocelli medium-sized, separated from 

 compound eyes by two-fifths to slightly more than half own least diameter; postclypeus rather 

 weakly inflated, Pcl/W, 025, posterior margin bowed, median suture present, weak at each 

 end. Apical teeth of mandibles short, La/Li, 0-54-0-56, Ra/Ri, 0-66-0-69; subsidiary marginal 

 tooth of left mandible clear of molar prominence in surface view, complex ratio, LA/Li.L m 

 7-37-8-70; points of apical and marginal teeth of right mandible more or less in line, anterior 

 edges of marginal teeth approximately equal or first slightly longer than second, complex 

 ratio, Ri/Ra Rm (note difference from ratio used in worker caste), 20-60-22-30. Pilosity of 

 head capsule uneven, brown, not forming a pelt. 



Measurements (two specimens from one nest-series) in millimetres. 



Head width across eyes (YV) 



0-99-1-06 



Ocellus (O w x Oi) . 



008-009 X 0-11-0-14 



Ocellus to eye (O-E) 



004-005 



Postclypeus length (Pel) 



0-25-0-26 



Antennal article III . 



005 



Antennal article IV . 



005-006 



Antennal article V . 



006 



Left mandible, apical to first 





marginal (La) 



009-010 



Left mandible, first to third 





marginal (Lj) 



017-018 



Left mandible, third marginal to 





molar (L m ) .... 



007 



Right mandible, apical to first 





marginal (R A ) 



009 



Right mandible, first to second 





marginal (Ri) 



013-014 



Right mandible, second marginal 





to molar (R m ) 



0-07 



Mesonotum width (M) 



0-22 



Metanotum width (N) 



0-2I 



Worker. Head capsule yellow, pilosity orange-yellow, setae numerous but fine and not 

 conspicuous. Postclypeus rather weakly inflated, Pcl/VV, 0-26, Pcl/Rj, i-6i. Apical teeth of 

 mandibles short, La/Li, 0-57, R A /Ri, 064; subsidiary marginal tooth of left mandible just clear 

 of molar prominence in surface view, complex ratio, La/Li. L m , 1031; point of first marginal 

 tooth of right mandible slightly behind line of apical to second marginal, anterior edge of first 

 marginal distinctly shorter than that of second, R A /R|.Rm, 1207. Fore tibia slightly swollen, 

 Ti/T w , 4-50, third apical spur about half as long as other two. Mesenteric overlap with procto- 

 deum about four times as long as width of mesenteron at insertion of malpighian tubules; 

 enteric valve seating very weakly three-lobed, connected to second pouch of proctodeum by a 

 short neck, lateral in position in unopened abdomen; internal cushions of enteric valve all 



