Ceylon Coleoptera, Sfc. 43 



pits at the base posterior margin with two sinuosities. The 

 shoulder ridges of the elytra are short, but rather strongly 

 marked. The tibiae are narrowed, sub-cylindric and hairy at 

 the apex. Joints 2-3 of the tarsi are subequal, the anterior 

 pair more, the intermediate less contracted. 



33. Scydm^enus graminicola. N. 



S. gracilior ; long. corp. f lin. Antennae art. 3 et 4, 6 et 7, 9 et 10 

 inter se subsequalibus, 5o adjacentibus paulo longiore,3-7 subcylindricis, 

 8 subgloboso, 9-10 fortiter globosis cum llo clavam formantibus. Palpi 

 maxill. art. 3° inverte conico, 4° mediocri. Mandibulae apice arcuatae, 

 medio acuminate 1-dentatee, basin versus sensim dilatatcs. Thorax obcon- 

 icus basi depressus, 2-sinuatus et 2 foveolatus, rectangulatus. Pedes 

 tibiis elongatis basi apiceque arcuatis. 



Of the usual brown color, legs and antennas lighter, tarsi 

 and palpi quite so, femora nigrescent at the apex, hairs of occi- 

 put and thorax rather long, The former slightly narrowed 

 behind, the head thus of a somewhat rhomboid form. Anten- 

 nal club composed of 3 joints, the 2 first of which are strongly 

 globose, the last being acuminated and slightly cut way on 

 one side at the apex. The mandibles are furnished with an 

 acuminated tooth at the middle, bent at the apex, and, what 

 is rather uncommon in this g., gradually enlarged towards the 

 base. The thorax is obconic, rather longer than broad. The 

 elytra are somewhat more stretched than usual in this group, 

 the rudimentary humeral costae are rather prominent, they 

 are separately rounded off at the apex. Tibiae, more or less 

 elongated, slightly bent at the base and apex, at the latter 

 place sub-cylindric and hairy. Tarsi with joints 2-3 subequal, 

 first pair slightly contracted. A sexual distinction appears to 

 be expressed in the length of the tibiae, which are less elon- 

 gated in certain individuals, which are at the same time less 

 robust than the others. The insect is easily distinguished by 

 its general appearance. 



