305 



Femiiiae antennarum flabello 6-articulato, quam maris multo 

 breviori, articulo flabelli 1" quaiii .'3'" circiter duplo bre- 

 viori ; pygidio gibbo nuUo modo carinato. Long, 12-14 

 1. ; lat., 6J-7 1. 



An extremely distinct species, the only one known to me 

 (of the genus) having a well-developed lateral sulcus on the 

 prothorax, and the flabellum of the female antenna 6-jointed. 

 The male has its antennal flabellum notably longer than in 

 any other Haplonycha of the same group (known to me) except 

 pilosa, Blackb., from which species it is easily separable, i7iter 

 alia, by its pygidium, impunctulate, much more nitid, glabrous, 

 somewhat tumid, and much more widely truncate (and not 

 triangularly impressed) at the apex. The prothorax and 

 elytra in both sexes are notably more nitid and finely and 

 sparsely punctured than in the other species having a flabel- 

 lum with more than three joints. The geminate striation of 

 the elytra is very feeble, scarcely indicated except by the inter- 

 stices between stria and stria of each pair being evidently con- 

 vex and much narrower than the interstices between pair and 

 pair. 



Western Australia ; Swan River, etc. 

 H. jjilosa, sp. nov. Ovata, longior ; subnitida ; ruf obrunnea, 

 elytris subiridescentibus ; corpore subtus pedibusque ful- 

 vo-pilosis, capite prothorace elytrorum basi pygidioque 

 pilis elongatis erectis subtilibus vestitis ; capite crebre 

 rugulose, prothorace obsolete subcrebre, elytris (his gemi- 

 nato-striatis) sat crebre minus subtiliter, pygidio sparsim 

 perspicue, punctulatis ; antennis 9-articulatis ; prothorace 

 quam longiori duplo latiori, postice retrorsum sat late 

 declivi, lateribus (et basis lateribus) sulco marsfinali (hoc 

 granulis piliferis conferto) impressis, basi minus perspicue 

 sinuata : elytris ad apicem suturalem s-at fortiter denti- 

 formibus. 

 Maris antennarum flabello 6-articulato, quam articuli omnes 

 prgecedentes conjuncti sat longiori, arcuato : pygidio 

 minus convexo, ad apicem profunde triangulariter im- 

 presso. 

 Fem. latet. Long., 11^ 1. : lat., 5^ 1. 



The antennal structure at once separates this species strongly 

 from all its known allies except H. aiitenncdh, from which 

 it differs as indicated under the heading of that species. The 

 flabellum of its antennae is even longer than in the corres- 

 ponding sex of antennalis. The sparse, erect, very fine, and 

 inconspicuous hairs on its head disc of prothorax and base 

 of elytra are a valuable specific character. 



Australia. I am not certain of the exact locality, but 

 believe it to be Eyre Peninsula. 



