374 



GERALD F. HILL. 



and generally directed slightly forward. Labrum large, convex, rounded on the sides 

 to the bluntly rounded apex'. Ciypeus large, slightly convex, emarginate in front, 

 divided medially by a deep depression. Fontanelle very indistinct. Antennae 

 (tig. 9,b) very long and slender, 19- or 20-jointed, rarely 18 ; 1st joint twice as long 

 and about half as wide as 2ad ; 2ad nearly cyhndrical, one- third longer than 

 3rd ; 3rd narrowest at base, wider than 4th at apex ; 4th shortest of all ; 5th a 

 little longer and wider than 4th ; 6th nearly as long as 2nd ; 7th longer and 

 narrower than 6th. 



Fig. 9. Proximal segments of antenna of soldier of 



(a) Drepayiotermes perniger, Frogg. ; {b) D. daliensis, 



sp. n. 



Pro thorax similar to that of D. silvestrii, but anterior half narrower. Legs long 

 and slender, wdth scattered hairs except on inner side of tibiae, which are fringed with 

 longer and stouter hairs ; mid-tibiae with two short stout apical setae on upper side, 

 which are absent in hind tibiae ; first three tarsals verv short, 4th ver\- long ; 

 tibial spurs 3:2:2. 



Abdomen as in D. silvestrii, sp. n. 



Measurements : — 



Woykey. — Colour of head zs in soldier ; ciypeus and jaws (excepting teeth) tawny 

 olive ; labrum, palpi, antennae, thorax and legs cla3'-colour. 



Head large, rounded behind and on the sides, widest near the mieidle, a pale coloured 

 and very distinct median suture extending from back of head forwards, spreading 

 out around the fontanelle, which is a sharply defined, small, broadl\-oval depression ; 

 frons sloping slightly to the base of the ciypeus, very faintly rugose. Labrum large, 

 very convex, covering apex of jaws, narrower than anteclypeus at base, swelling out 

 sharply in the middle to the rounded apex. Anteclypeus large, middle of anterior 

 margin produced into a point. Postclypeus large, twice as wide as long, convex, 

 truncate in front, strongly arcuate behind, median suture hardly visible, with 

 very few hairs. Antennae 19- or 20-jointed ; 3rd, 4th and 5th joints short ; 

 4th shortest. 



Prothorax as in soldier, entire surface with stout reddish hairs. Legs long and 

 slender, as in D. silvestrii, sp. n. 



