204 NOTES ON AUSTRALIAN COLEOPTERA, 



IPHIASTUS DISPAR, Sp.nOV. 



Pic<^o-ferrugineus ; pube versicolori (sc. grisea albicla anranti- 

 acaque) vestitus ; pube aurantiaca in capite piothoraceque 

 lineatim in elytris maculatim disposita; elytris apice truncatis, 

 truncatura externe aiigulato-prominenti, parte basali granu- 

 lata. [Long. 12, lat. -4^ lines. 



This species must certainly, I think, be referred to Iphiastus^ 

 although its markings and vestiture are not much like those of the 

 typical species (/. heros^ Pasc). Mr. Pascoe originally described 

 /. heros as a SymphileteSj but afterwards founded Iphiastus for it 

 on the ground chiefly of its antenna! tubers being more prominent 

 and approximate than those of Synii^hiletes ; he mentions several 

 other characters, but says that they are all merely those of 

 Sympliiletes exaggerated. The prominence of the antennal tubers, 

 however, appears to me a really good generic character, and I 

 notice also a character Mr. Pascoe did not mention in the much 

 greater length of the lesfs. These characters are well defined in 

 I. disjoar. 



In the present species (as in so many species of Rhytiphora and 

 Symphiletes) the whole surface, including the legs and antennae, 

 is closely covered with a fine pubescence (it is of a slate colour 

 tending to whitish on the metasternum) which may be regarded 

 as forming the ground colour of the insect, while pubescence of 

 another colour (orange-red) is superadded and forms the markings. 

 The slate-coloured pubescence is pitted on the elytra and under- 

 surface with small denuded spaces which give the appearance of 

 a multitude of little dark spots. The orange-red pubescence forms 

 the following markings : on the head a line on either side of the 

 impressed median line, a ring round each eye, a line behind each 

 eye, and a patch at the ba«e of each mandible ; on the prothorax 

 six transverse lines, the 2nd and 3rd (counted from the base) being 

 irregular ; on the elytra a number of small spots very evenly dis- 

 tributed over the whole surface (very much as the ferruginous 

 spots are distributed in Rhytiphora Waterhousei, Pasc, and 



