BY THE REV. T. BLACKBURN. 855 



This species is closely allied to L. degener, from which it differs 

 as follows : the clypeus is very much less strongly emarginate in 

 front (resembling that of L. delicatula, but with the sides much 

 less rounded), the prothorax is more narrowed anterioi'ly and 

 much more sparingly punctured on the disc, the elytra are much 

 more sparingly and less confusedly punctured, the scales on the 

 upper surface are altogether hair-like, and the teeth on the outer 

 margin of the front tibige are considerably blunter. 



The three specimens before me appear to be of the same sex. 

 The club of the antennae is evidently longer than in the specimens 

 of L. degener meaationed above (being nearly as long as the pre- 

 ceding six joints together), the elytra are dilated behind the 

 middle, and the apical ventral segment is more than half as long 

 as the penultimate (as in all the specimens of the genus that I 

 have seen, except the one of L. Darwini mentioned above). 



Northern Territory of S. Australia; taken by Mr. J. P. Tepper. 



N.B. — It should be noted that in perfectly fresh examples the 

 surface of some of the above species may very possibly be more 

 densely scaled than I have described it, as the scales are very 

 easily rubbed off; and it is probable that few cabinet specimens 

 are quite as scaly as they were when freshly matured from the 

 pupa. 



Unless all the examples (with one exception) examined by me 

 of the preceding species be of the same sex, the sexual distinctions 

 are extremely slight. 



Palmerstonia, gen.nov. (Pimelopid^). 



Mentum in medio laminam compressam erectam conformans. 



Mandibula prominentia, librata, extus obtuse bidentata. 



Maxillae baud observatse. 



Palpi maxillares validi, articulo 1° parvo, 2° subcylindrico, 3° 

 parvo, 4° subconico antennaram clava paullo breviori. 



Palpi labiales toti aperti, articulo 1° subcylindrico, 2° parvo, 3° 

 subgloboso antennarum clava vix minore. 



