195 



not be repeated at full length; the puncturation of the two 

 presents no noteworthy distinction. The notably narrower 

 more parallel and more elongate form is, I think, a reliable 

 character in Rhopcea; the difference in the shape of the pro- 

 thorax is very noticeable when the two species are side by 

 side, and the very different structure of the 3rd antennal 

 joint prevents any difficulty in distinguishing either from the 

 other. In all probability these characters are distinctive of 

 the females also. The greater development of the elytral 

 costae in the unique type of R. consanguinea is perhaps not so 

 reliable as the other characters cited. 



North Queensland. 

 R. incognita, sp. nov. Mas. Modice elongata; ruf otestacea ; 

 fronte elytrisque pilis erect is fulvis sparsim vestitis, 

 sternis pedibusque longe fulvo-pilosis ; clypeo crebre 

 rugulose subtilius punctulato, antice alte reflexo; fronte 

 subgrosse rugulosa; exempli typici palpis maxillaribus 

 carentibus; antennis 10-articulatis, articulis 3° sat brevi 

 quam latiori parum longiori 5° brevi intus breviter spini- 

 formi, flabello 5-articulato (articulis 1° quam 2 US dimidio, 

 2° quam 3 US fere dimidio, brevioribus) quam articuli 

 ceteri conjuncti sat longiori; prothorace quam longiori 

 ut 10 ad 6 J latiori, antice fortiter angustato, sat crebre 

 sat fortiter punctulato, lateribus crenulatis minus fortiter 

 rotundatis, angulis posticis acute rectis, basi sat fortiter 

 lobata ; elytris longitudinaliter obtuse minus obsolet-e 

 costulatis, rugulose subgrosse vix crebre punctulatis; 

 pygidio subtillisime creberrime punctulato. 

 Fern, latet. Long., 11J 1. ; lat., 5J 1. 



This species is near R. morbillosa, Blaokb., but of nar- 

 rower form, its antennae similar, its clypeus a little less 

 strongly elevated in front, its prothorax more strongly nar- 

 rowed in front and having sides much less dilatate in the 

 middle and base more lobate, its pygidium more finely and 

 more closely punctulate. From R. planiceps it differs by, 

 inter alia, its clypeus very much more strongly reflexed, its 

 prothorax more strongly narrowed in front and more strongly 

 lobed at base and its pygidium much more closely and finely 

 punctulate. From both the above it differs by the much 

 better defined costulce of its elytra. 



Australia (locality uncertain, but I believe I took it in 

 the Victorian Alpine Region). 



R. planiceps, sp. nov., Mas. Minus elongata; supra sub- 



glabra, sternis pedibusque longe fulvo-pilosis ; rufo- 



brunnea ; capite pronotoque sat fortiter vix crebre 



punctulatis ; clypeo minus lato, antice parum reflexo ; 



g2 



