312 ON THE PSELArniDJ^ OF AUSTRALIA, 



The trausverse line on the faca distinguishes this species. 

 The 9th joint of the antennae is hardly larger than the 8th, so 

 that the club appears to be composed of only two joints. 



Sp. 55. B. (Eupines) exijua. 

 Brijaxis exijua. (Part T., p. 50.) 



Castanea non setosa ; aiitonnis brevibus clava tri-articulata, 

 articulis gradatim ab 8^" crescentibus antepenultimo sub- 

 transverso ; thorace antice rotundato angulis acutis subito 

 post medium contracto ; abdominis segmento 2'"''' majori. 

 Long. 0'03 Paramatta. 

 A very distinct species. In the figure given, (PI. VII., fig. 

 10) the penultimate and antepenultimate joints of the antennas arc 

 not sufficiently transverse. The description given of the antennae, 

 page 50, is more correct. The thorax comes near E. Victorice. 



B. — Antennae ten-jointed. 



Sp. 56. B. (Ea-pines) EUzahef.hm. 

 (Part IL, p. 105, PI. VII., 8—9.) 

 Long. 0-03. 

 The thorax, as figured in the plate, is hardly correct. It 

 should be briefly obcordate. The antenna figured is also rather 

 longer than it should be. 



Genus XI. Bythinus. Leach. 



Sp. 57. B. iinpressifrons. 

 (Part TIL. p. 173.) 

 Long. 0-05. 

 The Clyde River. Mr. Masters. 



Sp. 58. B. niger. 



Niger politus non-setosus ; capite subquadrato ; thorace obcor- 

 dato, capite sublatiori ; elytris magnis, linea suturali nulla 

 discoidali ; abdomine minute setoso ; pedibus piceis. 



L<mg. 0'04. 



Victoria. In Dr. Howitt's collection. 



