BY WILLIAM MACLEAY, F.L.S., &C. 821 



impressed. Elytra convex and punctate, with three distinct 

 geminate stride, Pygidiuin and propygidium densely and minutely 

 punctate, the former with a smooth central keel. Legs piceous, 

 anterior tibia? tridentate externally, the spine at the inner apex 

 short, the anterior tarsi thick, the first joint of the posterior tarsia 

 little shorter than the second, and the ungues of all the tarsi only 

 slightly diverging. 



Length, 4 lines. 



Hob. — South Australia. 



21. Liparetrus atratus, Burm. 



Handb. der Ent. IV. 2, p 196. 



Black, sericeous, thickly and coarsely punctate, the clypeus 

 renexed and sharply tridentate in the male, less so in the female, 

 the clypeal suture curved upwards in the middle. The thorax 

 with the median line marked behind. Elytra distinctly striated, 

 glabrous. The body beneath is cinereo-villose, the hairs on the 

 head and thorax are blackish. The anterior tibiae are reddish- 

 brown, and strongly tridentate, the tarsi are thicker in the male 

 than in the female. 



Length, 2| lines. 



Hah. — Tasmania and South Australia. 



I believe I know this species and have it from South Australia. 

 It is distinct, as Burmeister says, from iridipennis Germ. I do 

 not, however, add anything to Burmeister's description, as my 

 South Australian insects may be specifically distinct, and I should 

 only be making confusion worse confounded by giving additional 

 characters which may really not apply to the species. 



22. Liparetrus iridipennis, Germ. 



Linn. Ent. III. p. 194 ; Burm. Handb. der Ent. IV. 2, p. 196 ; 

 L. obscurus, Homb. and Jacq. Voy. Pole Sud, pi. 8, fig. 15 ; L. 

 sylvicola, Blanch, (not Fab.) Voy. Pole Sud, IV. p. 127. 



Entirely black, opaque, and more or less iridescent all over, but 

 chiefly on elytra and propygidium. The upper surface is glabrous, 

 the under cinereo-villose. The head is very minutely punctate, 

 impressed broadly and shallowly in the middle, and with the 



