219 



atis, sulco laterali aequali, angulis anticis sat rectis parum 

 product-is posticis (superne visis) sat rotundatis, basi vix 

 bisinuata, margine basali sequali ; elytris sat subtiliter 

 vix crebre punctulatis (trans elytron puncturis circiter 

 24) ; pygidio leviter minus crebre punctulato, longi- 

 tudinaliter carinato ; coxis posticis quam metasternum 

 sat multo brevioribus, qnam segmentnm ventrale 2 um 

 paullo iongioribns ; tarsornm posticornm articnlo basali 

 quam 2 US paullo breviori, 3° sat aequali : unguiculis posticis 

 appendiculatis, parte basali quam apicalis multb longiori, 

 variat corpore toto ferrugineo. Long., 3 1. ; lat., If 1. 



The trilobed outline of the head is very feeble and not 

 divided, the middle lobe about two-thirds of a lateral lobe 

 in size. The species of the aggregate AA, BB, CC, DD, 

 EEE, EF, GG, are all obscure and small insects bearing 

 much general resemblance to each other. I believe the char- 

 acters indicated in the tabulation as distinguishing them, inter 

 se, to be reliable and constant, but think it desirable to add 

 some notes on some of their other distinctive characters. H. 

 concolor and suturalis have a fringe of stout bristles at the 

 apex of the elytra which is absent in the other species. I 

 have seen a sufficiently long series of H. calidus and incon- 

 spicuus to satisfy me that the fringe is constantly absent in 

 them, but it is possibly wanting through abrasion in some of 

 the others. The elytral puncturation is very notably closer 

 in H. subcylindricus and puer than in any other of the aggre- 

 gate. H. inconspicuus differs from all the others of the aggre- 

 gate in its prothorax being at its widest notably nearer to 

 the base, with sides feebly arched and hind angles less rounded 

 off. The pygidium is more or less strongly carinate in all 

 except H. oscillator, parvidus, suturalis, and puer. H. con- 

 color and puer alone have hind claws subbifid. 



Victoria; Mildura. 



SUPPLEMENT. 



The following species must be added to Groups already 

 treated in the present Revision. Most of them have been 

 received since the publication of the Memoirs in which they 

 must stand. On the pages following the descriptions some 

 general remarks will be found, and also some notes on the 

 described species that I have not been able to tabulate: — 



Group II. 

 II . confertus, sp. nov. Sat elongatus, postice sat dilatatus; 

 minus nitidus ; piceo-ferrugineus, antennis palpis pedi- 

 busque dilutioribus ; supra pilis adpressis sat brevibus 



