BY THE REV. R. L. KING, B.A. 105 



This minute species was discovered iindei' wood and stones, 

 in the grass at Elizabeth Bay, by W. S. MacLeay, Esq. I 

 captured a single specimen under a stone near the sea beach in 

 the same locality, August 3rd, 1863. The species comes very 

 near B. polita, but is much smaller. The antipenultimate joint of 

 the antennas is considerably longer but narrower than the penul- 

 timate, while the last joint is very large in comparison. 



Br-xaxis Elizabeth^;. 



Piceo-castanea polita non setosa ; antennis 10-articulatis, ai'ti- 

 culo penultimo 8^" et 10"° latiori, appendicnlato ; elytris 

 magnis ; abdominis segmentis sub-asqualibus vix mar- 

 ginatis. 



hong.rU- PI. VIL, fig. 8, 9. 



Sydney. 



This very distinct and interesting species was also discovered 

 by W. S. MacLeay, Esq., in his garden at Elizabeth Bay, and to 

 him I am indebted for specimens and permission to describe it. 

 Its 10-jointed antennge at once distinguish it from all its Australian 

 congeners hitherto discovered. There are three species of the 

 genus which agree with it in this character, (which indeed when 

 considered in connection with the scarcely margined abdomen is 

 almost of such importance as to indicate a new genus) described 

 from North America. Seen with a lens the antennae are remark- 

 able for the shortness of the joints, 3 to 7, and for the large size 

 of the penultimate joint. The former of these peculiarities, as well 

 as its general form, brings it near to B. Exiqua : when mounted for 

 microscopical inspection in Canada Balsam it is easily seen that 

 the external part of the 9th joint is curved downwards until it 

 almost touclies the preceding joint. 



It is probable that this and the preceding species are common 

 enough near the beach. But their extreme minuteness enables 

 them to escape any but a practised eye. 



Mr. William MacLeay has in his extensive collection a Pselaphi- 

 deous insect from the Cataract River, found under a stone. It 

 resembles the description given of Tyrus humeralis of Westwood, 

 a species found at Melbourne in ant's nests. The specimen how- 

 ever is not in a good position for cxaniination. 



