216 Proceedings of the Royal Society of Victoria. 



A. — Antennje in repose lying in deep) proster- 



nal sulci. 

 B. — Basal part of metasternum bearing a 

 short longitudinal sulcus. 

 C — Prosternal sulcus closed behind - - - Arisus. 



CC. — Prosternal sulcus open behind 



Dyscharachthis (nov. gen.) 

 BB. — Metasternum devoid of sulci. 



C. — Prosternal sulcus not narrowed by the 

 eye in passing on to the head. 

 D. — Prosternal sulcus about as wide as 

 the distance from its inner margin 

 to the prosternal suture - - - Anabolus. 

 DD. — Prosternal sulcus much narrower - Dromjeolus. 



CC. — Prosternal sulcus narrowed by the 

 eye in passing on to the head. 

 D, — Prosternal sulcus margined within 

 by a continuous elevated line. 

 E. — Joint 4 of tarsi produced beneath. 

 F. — Prosternal sulcus as wide as the 

 distance from its inner margin 

 to the prosternal suture - Galbodema. 



FF. — Prosternal sulcus notably less wide. 

 G. — Basal joint of hind tarsi as 

 long as all the other joints 

 together ----- Fornax. 

 GG. — Basal joint of hind tarsi 



notably shorter - Discaptothorax (nov. gen.) 

 EE. — Joint 4 of tarsi not produced 



beneath . - - . Phtenocerus. 

 DD. — Prosternal sulcus margined within 

 by an elevated line only in its 

 hinder part - Dystrigonisthis (nov. gen.) 



AA. — Antenna? not received into prosternal 

 sulci. 

 B. — Disc of pronotum bearing (at least near 

 base) a supplemental carina near the 

 lateral edsrinsr. 



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