98 



W. A. SANDS 



Astalotermes impedians sp. n. 



(Text-figs 204, 205, 210, 211 & 220-225) 



Imago. Head capsule brown, not darker above ocelli; fontanelle short oval, less than half 

 size of ocelli, slightly depressed, pale brown; medial spot oval, flat, smaller than fontanelle, 

 brown; postclypeus pale brown, labrum pale yellow; frontal marks small rather indistinct 

 flat pale brown crescents; antennae pale yellow-brown. Pronotum, yellow-brown, meso- and 

 metanota pale yellow-brown, transverse sutures absent on meso-, very weak on metanotum ; 



226 



227 



Figs 214-231. Astalotermes, worker mandibles, mesenteric-proctodeal junctions showing 

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

 enteric valve seatings. 214-219, A. empodius (mandibles heavily worn); 220-225, 

 A. impedians; 226-231, A. irrixosus. 



