BY W. MACLEAY, ESQ., F.L.S. 175 



one near the front. The thorax has the faintest possible trace of 

 the median, line in the centre, has the lateral foveae deep, round, 

 near the posterior angles, and without other punctures near 

 them as in M. dilatatus, and has a shallow fovea containing two 

 or three punctures near the anterior angles. The elytra are of 

 the same form and sculpture as M. dilatatus. The fore tibiae 

 have their exter-nal surface punctured on the apical half only. 



334.— Mastochilus puncticollis. n. sp. 



Length 15 lines. 

 The sculpture of the head is much the same as in the last 

 species, but the space in front of the frontal ridge is shorter and 

 more perpendicular. In addition the whole insect is less nitid, 

 there is no trace of median line on the thorax, the fovete are more 

 filled with small punctures, and there is an accumulation of punc- 

 tures near the anterior angles. The fore tibiae also have their 

 external surface punctured almost to their base, and their ex- 

 ternal teeth are very obtuse. 



SCARAB^ID^. 



Sub-family Copridj;. 



Canthonosoma. n. gen. 



Body broadly ovate, convex. Head fiat, transverse, broadest 

 and angular in the middle, and broadly rounded behind and in 

 front, with a small semi-circular emargination between two small 

 tubercles at the apex. Eyes oval above and free on the posterior 

 edge. Mentum and labial palpi resembling those of Cephalodes- 

 mkis. Thorax transverse, convex, flattened on the sides, rounded 

 behind and emarginate in front. Elytra as broad as the length, 

 sub-convex, much narrowed at the apex with the marginal 

 epipleurge deep. Pygidium perpendicular, sub-triangular and 

 rounded at the apex. Legs moderately stout ; the anterior with- 

 out tarsi, with the tibiae slightly arcuated and furnished with a 

 small tooth on the outside near the apex, two short obtuse teeth 

 at the exterior apical angle and a strong acute spur at the inner 



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