236 CEEAMBTCID^E. 



Group THRANIINL 



Head rather strongly sloped above ; the front vertical, flat, 

 large and rectangular ; eyes finely facetted, feebly emarginate, 

 the upper lobe very short ; gula without mentigerous process. 

 Antennae cylindrical, shorter than the body in both sexes. Pro- 

 thorax parallel-sided, the disc more or less raised in front. Elytra 

 long, deflexed at the sides only where they cover the thorax, flat, 

 narrow and more or less dehiscent posteriorly, acuminate at the 

 apex. Femora clavate, the hind pair much shorter than the 

 abdomen. Front coxae rather prominent, contiguous, their 

 acetabula open posteriorly. Acetabula of middle coxae extended 

 to the epimera. Episterna of metathorax very broad in front, 

 gradually narrowed to a point posteriorly. Wing-vein Cu 1 

 simple, Cu 2 absent. 



This group is formed for a single genus, Thranius, Pasc., which 

 was included by Lacordaire in his group Necydalides. The 

 affinities of this genus are doubtful, but it certainly cannot be 

 associated with Necydalis, a genus which is now generally recog- 

 nised as belonging to the Lepiuriiue. 



Genus THRANITJS. 



Thranius, Pascoe, Trans. Ent. Soc. (2) v, p. 22 (1859) ; Lacord. 



Gen. Coleopt. viii, p. 470 (1869). 

 Singalia, Lacord. Gen. Coleopt. ix, 2, p. 834 (1872). 



Type, T. gibbosus, Pasc. 



Banye. Oriental Eegion and Japan. 



Head strongly inclined above ; front vertical, flat and sub- 

 quadrate ; palpi short ; eyes rather large and prominent, feebly 

 emarginate, with very short upper lobes which do not extend 

 behind the antenniferous tubercles, the latter somewhat prominent 

 on the inner side. Antennae extended to the apical fifth or fourth 

 of the elytra in the <3 , and a little past the middle in the $ ; 

 the joints cylindrical, first slightly curved, third as long as the 

 fourth and fifth united ; fourth to tenth subequal in length, 

 eleventh a little longer than the tenth. Prothorax parallel-sided, 

 scarcely longer than broad ; the disc raised in front so as to form 

 a more or less distinct laterally compressed gibbosity. Elytra 

 elongate, almost flat above, deflexed at the sides only where they 

 cover the thorax, narrowed from the base up to the middle or 

 nearly so, and thence either parallel-sided or gradually widened 

 to within a short distance of the apex, each acuminate at the apex, 

 usually ended in a spine. Front coxae contiguous, their acetabula 

 open posteriorly ; acetabula of the middle coxae extended to the 

 epimera. Femora clavate, the hind pair much shorter than the 

 abdomen ; tarsus of the hind legs about half the length of the 

 tibia, with the first joint as long as the next two united. Episterna 

 of metathorax very broad in front, narrowed almost to a point 

 posteriorly. 



