THE SOLDIERLESS TERMITES OE AFRICA 



205 



shorter mandibular apical teeth, a more prominent postclypeus with evenly rounded 

 posterior margin, and a more distinct fontanelle. A. hemerns is much larger, has 

 a less inflated postclypeus and shorter apical teeth. A. improcinctus and A. nanus 

 are smaller, with the compound eyes markedly flattened against the sides of the head. 

 A. improelatans has wider meso- and metanotal constrictions, the posterior margin 

 of the postclypeus is evenly rounded, and the first marginal tooth of the right 

 mandible is longer. A. polyscolus is smaller, usually with a large conspicuous oval 



560 



561 



Figs 548-565. Anenteotermes, worker mandibles, mesenteric-proctodeal junctions showing 

 attachments of malpighian tubules and positions of malpighian knot, and views of 

 enteric valve seatings. 548-553, A. disluctans; 554-559, A. hemerus; 560-565, A. 

 improelatans . 



