BY THE REV. T. BLACKBURN. 429 



reflexed margin obsolete in the middle and its surface nearly 

 evenly continuous with that of the rest of the head ; the clypeal 

 suture is marked by a faint wavy line. The prothorax is a little 

 more than half again as wide as long, its base a little less than 

 half again as wide as its front which is gently concave with 

 sharp but little prominent angles ; the sides are very gently 

 arched ; the hind angles (viewed from above) appear right angles, 

 but not sharply so ; the base is bisinuate, being moderately lobed 

 in the middle ; the surface is faintly impressed on the median line. 

 This is one of the few species of Heteronyx in which the elytra 

 have some appearance of being punctulate-striate ; on careful 

 inspection however it is seen that the lightly impressed punctura- 

 tion (which is rather small and close near the suture becoming 

 coarse, more sparing and sub-obsolete externally) is not really 

 linear in arrangement but appears so only through the presence of 

 some very obscure longitudinal costse on which the punctures are 

 more faint than on the general surface ; nevertheless there is cer- 

 tainly a tendency towards the kind of sculpture that prevails in 

 Scitala and other genera ; the lateral fringe is not continued round 

 the apex and there is little or no defined membranous border ; the 

 costa nearest to the lateral margin (which is practically non-existent 

 till close to the apex) becomes well-defined at the apex, and is bent 

 round just within the apex and reaches across towards the suture. 

 The sculpture of the underside is very obscure, consisting on a 

 minutely coriaceous ground of rather large scarcely impressed 

 punctures. The hind coxse are scarcely shorter than the meta- 

 sternum. The ventral series consist of hairs and are moderately 

 well-defined. The three teeth on the anterior tibise are acute, but 

 the uppermost is very small. The pilosity of the upper surface 

 is much more conspicuous on the head and prothorax, where it 

 has a golden tinge, than on the elytra. 



Resembles H. fortis (in Sect. I.), and H. suhmetaUicus, but difiers 

 widely from either in important structural characters. Immature 

 specimens are more or less ferruginous, with a slight metallic tone. 

 The pilosity is very deciduous. The black antennae of this and 

 some of its allies are characteristic. The produced apex of the 



