380 Dr. G. A. K. Marshall on new 



Subfamily Otioebsynchinjs. 

 Systates sexspinosus, sp. n. (PL XIII, fig. 12.) 



<^ ? . Colour shiny blacky with markings composed of pale 

 metallic-green scales ; liead and rostrum with sparse seti- 

 form green scales ; pronotura witli a few green scales 

 scattered along the median line ; elytra with a broad 

 common sutural stripe of small separated scales, narrowing 

 from the top of the declivity to a point near the apex, and 

 a very irregular similar lateral stripe ; underside with sparse 

 green scales only on the jirosternum and mesosternum. 



Head with coarse, shallow, and usually confluent puncta- 

 tion, and a shallow median stria on the forehead, the vertex 

 transversely striolate. Rostrum a little shorter than the 

 head and separated from it by a rather shallow impression, 

 about as long as broad, the apex and base of equal width, 

 and the sides gently sinuate ; the dorsum with very shallow 

 confluent punctures, and with a faint central costa and an 

 ol)lique one on each side in the (J » these costse almost 

 obliterated in the $ . Antenna with the scape slender and 

 gradually clavate ; the funicle densely pubescent, with joint 1 

 rather longer than 2, the following being the order of 

 diminishing length : 1, 2, 3, (5, 7), 4, 6 ; the club elongate, 

 but little thicker than the funicle, and as long as 2^ of the 

 preceding joints. Prothorax a little broader than long 

 (5 : 4), subcylindrical, the sides gently rounded, broadest at 

 the middle, the apex only slightly narrower than the base, 

 both being truncate ; the upper surface closely covered 

 throughout with low granules, set with minute recumbent 

 pale setaj. Elytra ovate, broadest before the middle, 

 acuminate and jointly rounded at the apex ; the base on a 

 higher plane than the pronotum, sloping steeply forwards 

 and without a defined margin ; each elytron with two stout 

 sharp forwardly-directed spines above the shoulder near the 

 base, the anterior one being much the smaller, and a third, 

 usually larger aiul sharper, backwardly-directed spine in the 

 same line behind the middle ; the rows of punctures very 

 shallow and also irregular, except the three lying between 

 the suture and the row of spines ; the setse extreniely 

 minute, except along the sutural area, where they are short 

 and recumbent, becoming longer and erect towards the apex 

 along the suture and lateral margins. Legs long and slender ; 

 owing to the flattening of the lower surface the hind coxte 

 are very widely separated and, as it were, pushed out laterally 

 so that they are partly visible from above, especially in ^ ; 



