Explanation of Plate XLTT. 



Fio. L Trux, sp. n. ? ; North Australia,' dorsal view. 



2. Trox omacanthits, lateral view. 

 2tt. „ ,, , dorsal view. 



3. Trox scaber, lateral view. 

 3«. „ „ , dorsal view. 



4. Trox penicillahis, dorsal view. 



4a. „ „ , ventral view of median lobe. 



5. Ceratognathvs niger, dorsal view. 



Descriptions on pp. 573, 577, etc. Explanation of the letters 

 used uniformly on pp. 481-483. 



