4 [June, 



pygidium is more deflexed, and the apical segment of tlie abdomen is 

 smooth and shining in the middle, while in the female it is finely 

 punctured, each puncture bearing a fine yellow hair. 



2. PACHTTEICnA PALLEI^^S, Sp. n. 



Nigro-picea, supra nitida, mfra dense paUidelanosa,elytris testaceis, 



antennis riifescentibus, frotliornce dense p%mctato. 



Long. Corp. 14 Un. 

 ^ . tarsis anteriorihus, long. 6\ Un. 



$ . adhuc incognita. 



The only individual of this species before me evidently belongs to 

 the male sex ; it is extremely similar to the male of P. mnnda, and 

 differs from it as follows : it is a little narrower, and the elytra are 

 shorter and more convex, the legs are more slender and a little shorter, 

 the teeth on the front tibiae are less develpped, and the claws are 

 notably smaller. The wool of the under-surface is not so long, and 

 the abdomen is evidently more sparingly clothed. 



North-West Australia : Mr. Du Boulay. 



3. PACnTTniCHA EOBUSTA, sp. n. 



Picea, supra nitida, infra dense pallide lanosa, elytris castanets, 

 antennis rufescentihus, protliorace laterihus dense punctata. 



Long. coip. 17 Un. 



Of this very fine species I have but a single mutilated specimen 

 before me ; this individual, though it has lost all its tarsi, and the club 

 of its antcnnte, is,I think, a female, and there can be no doubt of its being 

 a distinct species from P. munda. It is much larger, notably broader 

 and more robust than that species, the punctuation of its thorax is 

 not so dense, the punctures not being confluent except at the front 

 angles, the labrum is longer and more prominent, the elytra are not 

 BO smooth, and are darker in colour, the pygidium is broader, and has 

 a deep impression at its extremity, the hind tibia? are more dilated at 

 their extremity, the last segment of the abdomen is much broader and 

 less conical in form ; and the fourth and fifth joints of the antennae are 

 much longer than in P. munda. This character will probably offer 

 an easy means of distinguishing the two species ; for in P. munda the 

 fourth joint is only about as long as it is broad, while in P. rohusta it 

 is much longer. 



This specimen was named Pacliytricha castanea in the collection of 

 Mr. W. W. Saunders ; but I find that it does not agree with "West- 

 wood'd figure (Trans. Ent. Soc, iii, pl# xiii, f. 4), and is, I have no 



