200 



ci,ioyuyjE. 



extremities. Pygidiuin prominent, sharply carinate all round, 

 with the upper and lower faces nearly flat. La.-^t pair of spiracles 

 prominent. Prosternum with a strong vertical process in front 

 of the coxae ; metasternum forming a narrow carina hetween the 

 middle coxae but not produced forward. Front tibia rather short, 

 armed with two slight external teeth, not closely approximate : 

 four posterior tibiae acutely digitate at the extremity and each 

 armed with a strong spine at the middle of the outer edge. Tarsi 

 not long, nor closely articulated. Basal joint of antenna not 

 very large. Mentum large, rather smooth and nearly flat. 

 The following species is only the second assigned to the genus. 



178. Platysodes jansoni, sp. n. 



Jet-black, very smooth and shining. The body is flat and long, 

 tapering slightly behind. The Jiead is broad, with the eyes not 

 very large or prominent, aud the chipeus short, rounded at the 

 sides and straight at the front margin, which is distinctly reflexed. 

 There are two shallow, punctured depressions 

 between the antennal orbits. The pronotum 

 is half as broad again as it is long, strongly 

 rounded at the sides, with the posterior 

 angles obliterated and the base distinctly 

 excised before the scutellum. The elytra 

 are rather broader at the shoulders than the 

 prothorax, gently sinuated at the lateral 

 margins and roundly narrowed to their 

 extremities. There is a narrow depression 

 at the anterior part of the suture, the latter 

 is bordered on each side by a deep stria, 

 and there is a very strong lateral furrow on 

 each elytron, not reaching the front or 

 hind margin. The intervening space is 

 smooth and bears only a few very minute 

 punctures. The pyijidium is almost semi- 

 circular in shape and has a strong carina all round, which divides 

 it into nearly equal dorsal and ventral faces. These are thinly and 

 rather minutely punctured and the dorsal surface is opaque and 

 gently carinate longitudinally in the middle. The meiastermim 

 and abdomen are smooth in the middle and feebly rugose at the 

 sides. 



The unique specimen described appears to be a male. 

 Len</t?i 24 mm. ; breadth 95 mm. 

 Assam : Khasi Hills. 

 Type in coll. Jansou. 



Fig. 44. 



Platysodes jansoiu. 



