Lea — Australian Dung Beetles 395 



deep oblong ones in the large depression; front, tibiae shorter, stouter, more 

 dilated at apex, with larger and more acute teeth, and without an inner hook. 



Hal. Northern Territory : Groote Eylandt (N. B. Tindale). Type, I. 15433. 



Consistently larger and more metallic than P. gcminata, prothoracic excava- 

 tion with distinct punctures only in the female, elytra nongranulate, etc. 

 Numerous specimens were obtained on the island. 



EXPLANATION OF PLATES, vi-ix. 



Plate vi. 



Pigs. 1, 2. Canthonosoma macleayi Har. 



3, 4. C. castelnaui Har. 



5. Copraecus hemisphaericus Guer. 



6. Labroma horrens Sharp. 



7. Merodontus calcaraUis Ma.-l. 



8. 9. Aulacopris reichei White. 

 10, 11. Coptodaetijla duccdis Blackb. 



Plate vii. 



Pigs. 12-14. Onfho'phafjus hnninatus Macl. 



15. 0. cowleyi Blackb. 



16. 0. pugnacior Blackb. 



17. 0. pugnax Har. 



18. 0. atrox Har. 



19. 20. 0. sloanei Blackb. 

 21,22. 0. fissiceps Macl. 

 23,24. 0. ferox Har. 



25, 26. 0. pentacanthus Har. 



27. 0. promts Er. 



28, 29. 0. leal Blackb. 



30. 0. opaclpennis Lea. 



Plate viii. 



Pigs. 31-33. Onthophagus australis Guer, 



34,35. 0. mastersi Macl. 



36, 37. 0. macrocephalus Kirby 



38, 39. 0. consplcuus Macl. 



40, 41 . 0. nodullfer Har. 



