285 



latter species ; for I passed over the description of the pro- 

 thorax with the remark that that segment scarcely differed 

 from the same in "porcellus (? )." At the time I had in mind 

 other distinctions which are very strongly marked between the 

 two species and overlooked the less conspicuous (but certainly 

 quite obvious when attention is drawn to it) difference in the 

 basal outline of the prothorax. 



The King Island specimen agrees with P. duhius in hav- 

 ing only a single transverse carina on the external face of the 

 middle and hind tibiae but differs from it (and agrees with 

 decip/enx) in the robust posteriorly-swollen form of its elytra, 

 — whicli is, I suppose, what Erickson refers to when he calls 

 the elytra of porcellus 'Ventricosa." 



From the above remarks it appears so evident that the 

 true P. porcellus, Er. (at any rate this species from King 

 Island) is intermediate in structure between P. decipiens and 

 P. duhius that there need be no further hesitation in asso- 

 ciating those species generically. As the specimen from King 

 Island does not fit well into the tabulation of specific charac- 

 ters of Pimelopi which I furnished in Tr.R.S., S.A., 1896, 

 p. 256, it will be well to substitute the following tabulation : — 



A. Posterior tibire unicarinate externally. 

 B. Base of prothorax snbbisinuate. 



C. Elytra strongly and subrngulosely 



pnnctiilate and swollen behind ... porcellus, Er. 

 CC. Elytra very feebly and sparsely 



punctulate and subparahel ... dubins, Blackh. 



BB. Base of prothorax very strongly bi- 



sinuate ... sydneyaniis, BJackh. 



A.K. Posterior tibia? bicarinate externally. 

 B. Elytral puncturation obsolete on 



lateral and siibapical parts ... ... crassus, Blaclch. 



BB. Elytral puncturation continiions ... decipiens, Blackb. 



P. decipiens, sp. nov. This name is proposed for P. por- 

 cellus, Er. (?), Blackb., Tr.R.S., S.A., 1887, p. 220. 



P. duhius, Blackb. For amendment of original descrip- 

 tion vide sujjra under heading P. porcellus, Er. 



CISSID^. 



Cis. 

 C. leanus, sp. nov. Minus latus; vix pubescens; sat nitidus; 

 supra brunneo-testaeeus, pronoto antice sat late et in 

 lateribus anguste elytris in sutura et latera versus incerte 

 inf uscatis ; capite sat crebre minus subtiliter nee rugulose, 

 pronoto confertim fortiter sat rugulose, elytris quam pro- 

 notuni paullo minus crebre nee rugulose, punctulatis ; his 

 circa scutellum subgibbis ; antennis pedibusque testaceis, 

 horum f emoribus illarum clava infuscatis ; corpore subtus 



