174 LFCANIDiE. 



yellow hair. The head is flat, very finely coriaceous above, 

 except at the sides, whidi are coarsely rugose. The front 

 margin forms a i)rominent trisinuatci ridge, the lateral margins 

 are nearly straigiit and parallel, veiy feebly swollen just in front 

 of the ])ronotum. Th(^ pronotani is smooth, with a rather 

 narrow densely punctured or rugosi^ band almost completely 

 surrounding it, but interrupted in the middle of the front margin. 

 The front angles are a little produced but blunt, the sides 

 nearly straight, the lateral angles very well marked but not 

 acute. The elytra are also smooth, with a narrow rugose strip 

 at the base, and the shoulders are sliarply angular. The hairy 

 sides of the nirfasteruKm leave a well-delined bare median sjiaco, 

 triangular in slia])e, which is smootli and sliining but with 

 minute scattered ]uuictures at the sides. Tlie abdomrn is very 

 smootli beneath. 



Variation of the wale. In a rather small male specimen 

 found by Mr. H. G. Champion at Pemayangtse the head is 

 strongly transverse, the mandibles are not longer than the head 

 but narrow, strongly curved and tridentate, the jironotum is 

 scarc(^ly broader than the head and its sides are straight and 

 parallel. In the large tyi)e-specimen the head and pronotum 

 are very broad, the head i-elatively longer and the pronotum 

 shorter, the nuxndibles long and slender, gently curved, forked 

 at the tip, with a fairly strong triangular internal tooth a little 

 beyond the base, the sides of the prothorax feebly concave, 

 converging towards the lateral angle. The front tibiae are 

 rather more slender. 



(^. Length (with mandibles), 83-50 mm. ; (without man- 

 dibles) 29-37 mm. : breadth, 13-15-5 mm. 



81KKIM : Pemayangtse, ()00() ft. (//. G. Champion, May). 



Type in the British Museum. 



Tlie habitat of the type-s])ecimen was given as North India 

 and j)ossibly Kashmir, but the discovery of a second example 

 in Sikkim renders the suggested locality very iniprobable. 



Genus ^GUS. 



/Egns Macl., Horae Entom. i, 1S19, p. 112 ; Arrow, Trans. R. Ent. 

 Soc. Ixxxiii, 1935, p. 11.3. 



Type, JiJgvs chelifer Macl. (Malaya). 



Range. Tlio Indo-Mnlayan, Pa])uanand Polynesian Region. 



Male and female dissiuiilar. Body generally compact, with 

 rather short but not stout U\gs and antenna', the club of the 

 latter composed of three short joints, the seventh joint some- 

 times slightly ])roduced. Canthus nuH^ting the gena and 

 com])letely dividing the eye into upper and lower halves. 

 ClyjH'us V(>ry short. Maxilla not very long, the inner lobe 

 without chitinous hook, the uuixillary j)alpus with the first 



