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width not more than a third of the whole length of the 

 insect — and its elytra with striae very faintly denned, inter- 

 stices equal, inter se, and flat, and fully the basal third black. 

 The male of jubatus is a much more robust and less elongate 

 insect — its elytra with well-impressed striae, interstices (especi- 

 ally the alternate ones) distinctly convex, and the base only 

 very narrowly black. The female of jubatus scarcely differs 

 from the male except in respect of sexual characters, which 

 however, include the absence of black colouring on the elytra 

 and variably lighter colouring in general of the pronotum 

 and under-surface. The specimens referred to above as pro- 

 bably females of dimidiatus differ from the males of 

 that species only as the females of jubatus differ from their 

 males, although, however, they are of a little more robust 

 form than I should expect in female dimidiatus. Both 

 species are fairly common. I have seen jubatus from South 

 Australia, Victoria, and New South Wales ; dimidiatus from 

 Tasmania, South Australia, Victoria, and (if the females 

 mentioned above are rightly identified) New South Wales. 

 The following I regard as varieties, but they may prove to 

 represent distinct species: (a) jubatus, v ar. female, entirely 

 ferruginous except frons and antennal nabella, convexity of 

 alternate interstices feeble (from Murray Bridge) ; fb) 

 jubatus, var. male, the parts usually black are pale fuscous, 

 not much darker than the other parts, male character of 

 claws feeble (from Sydney) ; dimidiatus, var. male and 

 female (very likely to be found a distinct species when more 

 specimens can be examined) striae more strongly impressed in 

 both sexes, male elytra with basal half black, form a little 

 less elongate (from G-isborne, Victoria). 



H. striatipennis , Blanch. Of this species I have seen 

 only a single female, which differs from the male (the only 

 sex previously described) as does the female of jubatus from 

 its male. 



H. liirtuosus, Blackb. Varies a good deal in colouring. 

 I described four varieties. It may be noted that all the 

 specimens with dark colouring on the elytra are males. 



H. jubatus, Blackb. For notes on this species see above, 

 under H . dimidiatus, Er. In describing it I expressed doubt 

 of its distinctness from //. striatipennis, Blanch., which I had 

 not then seen. It is, however, quite distinct, differing in its 

 wider and less cylindric form as well as in the sculpture of its 

 elytra. 



H. fraternus, Blackb. This species is in the unfortunate 

 position of the type having perished. It was described on a 

 unique example in the collection of the late Mr. J. Ander- 

 son. During the long illness of that gentleman (by whose 



