1922.] 



86 



seen from the front it is gradually widened from the fastigium towards the 

 ocelhim, distinctly constricted below the latter and gradually widened farther 

 downwards, disappearing just before the clypeus ; its surface not strongly 

 impressed; the margins above the ocellum sharp and smooth, below it thick, 

 rounded and callous, irregular. Temporal foveolae scarcely marginated, 

 slightly impressed, indistinct, elongato-oval. Fastigium of the vertex strongly 

 sloping, in profile widely rounded, impressed, with an indistinct median 

 carinnla ; its margins scarcely elevated in the front half and more so in the 

 hind half where they are thick, callous, and slightly convergent backwards ; 

 the maximal width of the fastigium is just before the eyes and measures more 

 than a half of its length and twice as much as the maximal width of the 

 frontal ridge. Occiput smooth, but not shining. Lateral facial keels practi- 

 cally straight, feebly divergent downwards, fairly thick, callous, disappearing 

 before they reach the clypeus. Cheeks somewhat swollen, smooth, with the 



Fig. 1. — Sphingonotus angulatus, sp. n. 



puncturation more dense at the lower margin and scattered elsewhere. E\es 

 perfectly oval, their maximal length subequal to two-thirds of their height ; 

 their lower end almost acutely angular. Pronotum strongly constricted in the 

 prozona, which is a little longer than one-third of the whole pronotal disc and 

 regularly convex ; the fore margin slightly rotuudato-prominent with a shallow 

 emargination in the middle; the first and second transverse sulci^ well 

 distinct, narrow, bent backwards in the middle, parallel to each other ; the 

 fore part of the prozona (/. e., that between the fore margin and the first sulcus) 

 somewhat raised tectiformly, but "without a distinct median carinula, with two 

 shallow impressions sideways of the raised middle part; no trace of the 

 median carina between the first and the third sulcus; two transversely 

 elongate callous tubercles between the second and the third sulcus ; the meta- 

 zona feebly convex, slightly rugulose, with a feeble median keel : the hind 

 margin obtusely rounded, with the sides slightly sinuate ; shoulders distinctly 

 prominent, rounded ; lateral lobes much higher than long, tlieir front margin 

 practically straight, the front angle obtuse, not rounded, tlie lower margin 

 strongly oblique, scarcely sinuate before the middle, the hind angle acutel' 

 attenuate sideways, the hind margin practical!}' straight. Episternum 



