ON NEW OK LITTLE KNOWN 

 AUSTRALIAN LOHGICORUIA. I. 



BY 

 J. R. H. IVI'^ËR VOORT VAIV DK POLL.. 



AMETROGEPHALINAE. 



Cyclo CR A NI UM v. d. Poll, gen. nov. 

 (^xrzAo,-, circulus; ^^àviov, cranium). 



I am obliged to propose this new genus for the reception of a 

 new insect , which , although closely allied fo Ameirocephala . 

 differs in so many important charactei's , that it is impossible to 

 place it in that genus. 



The head is still much more circular, the front as well as the 

 vertex being shorter, the former strongly swollen; eyes not quite 

 entire, the inner margin opposite the insertion of the antennae 

 having a very slight emargination. Antennae more robust (more 

 like those of Zorioit) , the scape strongly curved, the 3rd — Gtii 

 joints faintly incurvate. I^othoi-ax not so strongly narrowed an- 

 teriorly, but as broad at the tip as at the base, tiie sides pro- 

 duced in the middle into an obtuse tubercle, the disk highly 

 elevated and convex, strojigly depressed anteriorly and still more 

 so posteriorly. Scutellum short , broadly rounded. Elytra much like 

 those of Ochi/ra courctata Pasc. , sliongly rounded at the shoul- 

 ders , the sides rather deeply emarginate in the middle, then 

 swelling out before the tip, where they are conjointly rounded; 

 the upper surface is depressed in the middle and abruptly bent 

 laterally (forming a rather sharp border, which extends almost to 

 the shouldei-). whilst the erdai'ged apical portion is moderately 



