454 CLAUDE FULLER. 



head ; from the foramen a distinct, grooved ridge slopes 

 down to the cephalic margin. 



Labrum short and broad, distinctly divided into two convex 

 regions by a median groove, which forms a continuation of the 

 clypeus groove and permits any secretion from the clypeo- 

 frontal foramen to flow to the apex of the labrum ; cephalic 

 margin of chitinised portion distinctly bilobed, and with a 

 distal plate-like extension whose curvate margin is fimbriate ; 

 on the disc behind the fringe are several (six to eight) stout, 

 spine-like bristles ; sides bicurvate, at first diverging then 

 converging. 



Mandibles deep red-brown in sharp contrast with head 

 colour ; short and stout with long incurved apical points ; 

 left with two acute teeth ; right with one ; neither with a 

 basal process ; incisions above teeth very acute. 



Antenna? with I stout and cylindrical ; II cylindrical, 

 shorter than I ; III elongate, sub-obconic, much narrower at 

 base and longer than II ; IV and onwards moniliform ; IV 

 large and broader than III and longer and broader than V ; 

 V-XVI sub-equal; XVII not longer than XVI, tapering a 

 little, and roundly truncate, XV to XVI-jointed ; IV and V 

 fused in XV-jointed. 



Grula with free apex short ; distal margin incurvate ; nearly 

 straight ; sides diverging and incurvate. Inserted stem 

 narrow, long, sides slightly incurvate; concolorous with 

 ventral gense, with dark stripes in lateral sutures. 

 Thorax. — Concolorous with head ; polished. 

 Pronotum broadly sub-oval; median region convex ; cephalic 

 margin broadly curvate ; sides tapering and merging into 

 caudal margin which is faintly bilobed. 



Mesonotum large ; sides broadly curvate, diverging widely ; 

 caudo-lateral corners rounded ; caudal margin as wide or 

 faintly wider than pronotum, curvate and faintly bilobed. 



Metanotum with oblique, slightly cui'vate sides ; caudal 

 margin not as wide as that of pronotum, curvate, nearly 

 straight ; caudo-lateral corners rounded, but more acute than 

 those of mesonotum. 



