•"• L8 MR. P. G. SINCLAIR OK ORE [^^'- 3, 



each side of the indented part. Just above the upper lip there is 

 a roughly triangular depression with four bristles at the edges. 

 The frontal furrow does not come to the level of the antennae. 



The surface of the head is covered with granules and tubercles. 

 Posteriorly the frontal sulcus comes close to the edge of the 1st 

 tergite. 



1st tergite. Anterior border curved, marginal ridge covered with 

 tubercles, depression behind it. There are twelve distinct tubercles 

 on the ridge, towards the sides the tubercles become confused and 

 indistinct. The tergite is wider than the head. The posterior 

 margin lias eight distinct tubercles; it is slightly indented in the 

 middle The marginal ridge does not extend to the sides. The 

 lateral margins are cut so as to make the siiape of the tergite 

 roughly hexagonal. The whole surface of the tergite is covered 

 with irregular tubercles. 



2nd tergite widely opened, aud not coming much below the 

 first. Three irregular rows of tubercles can be distinguished. 

 The ends of the keels are bluntly rounded. 



'3rd tergite projects less downwards than the 2nd, no regular 

 rows of tubercles can be distinguished except at the posterior edge, 

 where there are fourteen tubercles arranged somewhat irregularly. 

 The lateral edge of the keels begins to be straight instead of 

 curved. 



Ath tergite. There are nineteen tubercles on the posterior 

 margin. Anterior angle still acute. Xo trace of shoulder. 



hth tergite. Shoulder present; anterior angle still acute. The 

 anterior angle is not quite a right angle till the 8tb. The anterior 

 edge of the keel is very slightly if at all convex ; in the 9th the 

 posterior edge begins to be concave. The first beginning of the 

 posterior hook is just visible in the 6th somite. The teeth on the 

 posterior margin are first visible on the 10th, those on the anterior 

 not till the 13th. The posterior hook is never very pronounced. 



The ancd sternite is indistinctly 5-lobed ; the longitudinal ridges, 

 of which only four are present, are not very pronounced. The 

 sterna are smooth and granulated, without a transverse furrow. 



Pla.tyrhac.us subalbls Pocock. 



From Tapelung, Patahmg State. 

 Length * s l mm., greatest width J 1 mm. 



PLA TYRHACUS XANTHOPT7B Pocock. 



Prom Bukit Jala, Jala District. 



Genus Strong ylosom a Brandt. 



Stroxgylosoma noditlosum At terns, var. nov. (Plate XXXII. 

 fig. 89.) 



From Bukit Besar, Jala District, and Kuala Ariug, Kelantan 

 State. 



Length 33 mm., width 3 mm. 



This species closely resembles the one from Borneo described 



