BY THE REV. T. BLACKBURN. 1231 



tlie labrum is turned upward as in Section III., but not so strongly 

 that its summit surpasses the level of the clypeus ; the clypeus is 

 strongly emarginate in the middle (its reflexed margin being carried 

 evenly all round the edge of the emargination) and this emargina- 

 tion opens a gap through which the labrum is very conspicuously 

 discernible : or the clypeus is more nearly truncate in front, the 

 species having it so being distinguishable from nearly all of Section 

 III. by their clypeal outline not having from any point of view a 

 " trilobed " appearance. 



As the number of species belonging to this group described in 

 my former paper was small, and I have a good many to add now, 

 I think it will be convenient to give a new tabulation, as follows : — 



A. Antennae 8-jointed rubescens, Blanch. 



AA. Antennae 9-jointed 



*B. Front of clypeus more or less truncate 

 or lightly concave 



C. Surface of the elytra normally 

 pubescent 



D. Hind coxse very much shorter 

 than metasternum, — their 

 external hind angles quite 

 rounded off 



E. Clypeus punctured very much 

 more closely than the hind 

 part of the head 



F. Prothorax considerably 

 wider at base than in 

 front ffranu7n, Burm. 



* H, granum, Burm., verges towards " BB " in the form of its clypeus, 

 and H. obesus verges to\V'ards "B," the clypeus of the latter being scarcely 

 very much more deeply excised in the middle than that of JI. granura. 

 There can be no mistake as to which of these groups any of the other 9 

 species fall into. 



