TnilA.MUS. 



237 



I. Ehjtra dehiscent only near the apex; each more than half as 

 broad at middle as at hase. 



266. ThranillS gibbosus, Vascoc, Trans. Ent. Sac. (2) v_, p. 22 (1859). 

 Sin^alia spiuipeuuis, Lacord. Gen. Coleopt. ix, p. 835 (1872). 



Pulvous or testaceous ; the head marked in front with a median 

 dark brown hne or band ; prothorax brown above ; elytra with a 

 laro-e brown spot at the base surrounding the seutellum, a dark 

 bro°wn patch on each before the middle and another behind the 

 middle ; these dark brown areas so variable in extent that in some 

 specimens the elytra might more fitly be 

 described as dark brown, with an arcuate 

 fulvous band near the base, another at the 

 middle, and the apex also broadly fulvous ^ 

 antennae dark brown, with the eighth and 

 ninth joints pale fulvous. Pronotum raised 

 in front in a rather strong laterally com- 

 pressed gibbosity, which is finely asperate 

 on top. Elytra densely and somewhat 

 asperately punctured, approximate at the 

 suture for almost their whole length, 

 gradually narrowed from the base to the 

 middle, "and thence to the apex of almost 

 equal width, each acuminate at the apex 

 and terminated in a sharp spine. Body 

 faintly covered above with very short 

 tawny grey pubescence ; somewhat more 

 densely clothed beneath with grey pubescence that gives silvery 

 reflections in certain lights. 



Length 14-22 ; h-eadth 3-5 mm. 



Hah. Southern India : Nilgiri Hills ; Ceylon. 



Fig. 89. 

 Thranius gibhosiis, 

 Pasc, §. X J. 



267. Thranius simplex, Guhan, Ann. Mns. Civ. Genov. xxxiv, p. 15 

 (1894). 

 Dark brown, or sometimes almost black in colour ; the head 

 and prothorax faintly clothed with yellowish pubescence; the 

 breast in the middle and the abdomen testaceous ; the legs more 

 or less testaceous, with the clavate portion of the femora and the 

 tibiae in part piceous or black ; antenna dark brown or black, with 

 the eio-hth and ninth joints fulvous yellow. Antennas extended 

 to the^apical fifth of the elytra in the 6 , and to the apical third 

 in the $ ; first joint closely and rather finely rugulose-punctate. 

 Prothorax with a strong, laterally compressed gibbosity on the 

 fore part of the disc which is subvertieal in front and almost 

 horizontal above ; the gibbosity rather densely asperate. Elytra 

 approximate at the suture for almost their whole length ; nar- 

 rowed slightly from the base for about one-third of their length, 



