192 



serrulatis, elytris tuberculis parum elevatis subseriatim 



dispositis. Long. 2 1. Lat f 1. (vix.) 

 Antennae red, club not darker ; tbird joint considerably nar- 

 rower, but not sborter, tban second, longer than broad ; 4-9 

 small and subequal ; tbe last two forming a large abrupt club. 

 Head very strongly dilated in front of tbe eyes, tbe dilated 

 portion forming on either side a large obliquely elevated lobe 

 which completely covers the basal joint of the antennae ; the 

 space between these lobes is occupied by the clypeus, and the 

 outline of the entire surface thus formed in front of the eyes 

 consists of about a dozen straight lines (of very unequal lengths) 

 placed at angles to each other. The surface of the thorax is 

 uneven, the disc being occupied by two costae wich run in a zig- 

 zag manner from the front margin to the base (the space 

 between them being depressed), outside which are some other 

 less-defined costae running both longitudinally and transversely, 

 with depressed interspaces. The sides of the thorax are widely 

 explanate, the greatest width (which is towards the front) of 

 either explanate margin being about one-third the width of 

 the whole space between the explanate margins. The general 

 form of the explanate margins is comparatively narrow at the 

 base gradually dilating all the way to the level of the anterior 

 margin and then running on forwards in a projecting lobe 

 which attains the level of the front of the eye, this projecting 

 lobe narrowing, to its apex, which is quite acuminate. The 

 exterior edge of the explanate margin is serrate, the incisions 

 becoming deeper, wider, and more parallel sided from the 

 front backwards till in the hinder half they reach half way 

 through the explanate margin and are only about four in num- 

 ber ; the deepest and widest incision of all, however, is at the 

 oniddJe of the margin. The surface of the head and thorax 

 appear to be coarsely but very obscurely granulate. The 

 margins of the elytra are not explanate but are conspicuously 

 serrulate along their whole length. The middle of the disc of 

 each elytron is nearly black, and the whole surface is striated, 

 also is occupied by a system of coarse transversely confluent 

 puncturation which seems to have no relation to the striation, 

 and also bears three rows of large but slightly elevated, 

 rounded, pale tubercles, the rows (counting from the suture) 

 containing six, five, and two tubercles respectively, the inner 

 two rows extending the whole length of the elytra, the exter- 

 nal one being behind the middle and the tubercles in all 

 the rows becoming more defined towards the apex. The whole 

 surface is thinly clothed with short erect scale-like setae, which 

 tend to gather into pencils on the tubercles. The apex of 

 each elytron is separately acuminate and a little produced. 

 This extraordinary insect must be very closely allied to the 



