126 Claude Fuller 



E. Pronotum somewhat trapezoidal, anterior 

 corners broadly rounded, sides faintly incur- 

 vate, hindmargin half the length of front 

 margin and either straight or faintly in- 

 curvate. Pron. always longer than half its 

 width and wider than head between the eyes. 



/. Meta. bilobed and rather deeply incised,, 

 processes rounded; meso. flatly incurvate 

 l^ioldier: Clypeus short, grooved, margin 

 broadly incurvate. 



Mandibles with short necks and pointed, 

 somewhat introse teeth. 



H. gunni sp. n. 

 //. Meso. and meta. both broadly incised, meta 

 the more broadly and deeply. 

 Soldier: Clypeus short, grooved, margin in- 

 curvate. 



Mandibles with short necks, teeth pointed 

 and retrose. 



H. londonensis sp. n 

 ///. Meso. and meta. both incurvate, processes 

 short, blunt; incurvature of meso. deeper 

 and wider than that of meta. Meta. of 

 male more narrowly and shallowly in- 

 curvate than that of female. 

 Soldier: Clypeus short, grooved, broadly 

 incised. 



Mandibles with long necks and retrose 

 teeth. 



H. zuurJyergi sp. n. 

 ////. Meso. and meta. both broadly incurvate; 

 meso. more deeply and widely than meta. 

 Soldier: Clypeus short, plainly bilobed. 

 Mandibles with long necks, teeth retrose. 



H, kellyi sp. n. 

 EE, Pronotum not trapezoidal, sides somewhat 

 curvate, hindmargin slightly incised, corners 

 not broadly rounded. Meso. rather deeply in- 

 curvate, meta. rather broadly and deeply in- 

 cised. 



Soldier : Clypeus short, grooved and somewhat 

 truncate. 



Mandibles with short necks, teeth somewhat 

 introse and points obliquely truncate. 



H. capicola Silv. 

 DD. Clypeus wholly or partly castaneous, almost as 

 dark as head. 



F. Head longer than wide, anterior corners of 

 pron. broadly rounded. 



ff. Clypeus wholly castaneous, Meso. broadly 

 incised, meta. somewhat bilobed, less 

 v\ idely and more deeply incised than meso. 

 Soldier : Clypeus long, bilobed, deeply cleft. 

 Mandibles with short necks, teeth solme- 

 what introse and acute. 



H. scJioombiensis sp. n. 



