242 WHEELER. 



than the similar posterior surface. The ventral surface bears in front 

 a thick, backwardly directed tooth. Postpetiole broader than the 

 petiole, couAex above and on the sides, a little broader than long, 

 with marginate sides and a small, flattened tooth on the front of the 

 \entral surface. First gastric segment scarcely broader than the 

 postpetiole and of a similar shape. Pygidium with a narrow, median, 

 longitudinal impression in front, its sides indistinctly marginate and 

 spinulose. Legs rather long and slender; claws nearlv' straight; 

 hind coxfe with a large rounded, translucent lamella at the tip on the 

 inner side. 



Surface of body smooth and shining. Mandibles coarsely punctate. 

 Sides of front punctate-rugulose. Upper surface of body with very 

 sparse, coarse, piligerous punctures; legs with finer and more numer- 

 ous punctures. Sides of pygidium finely and densely punctate. 



Hairs moderately abundant, coarse, bristly, erect, grayish or yellow- 

 ish in some lights, blackish in others, long on the gaster, especially at 

 its tip, shorter and sparser on other parts of the body, quite as long, 

 erect and abundant on the legs and antennse as on the head, thorax 

 and petiole. Pubescence absent. 



Rich red throughout, appendages not paler. 



Described from a single example taken in Queensland (Mus. South 

 Austr.). 



This handsome species is readily distinguished by its large size, the 

 shape of the antennpe and petiole, peculiar pilosity, etc. 



15. Phyracaces singularis Forel. 



Cerapachys singularis Forel, Ann. Soc. Ent. Belg. 44, 1900, p. 69. 

 y ; Froggatt, Agric. Gaz. N. S. W., 1905, p. 14. 

 Phyracaces singularis Emery, Gen. Insect. Fasc. 118, 1911, p. 11. 

 South Australia (Wroughton). 



16. Phyracaces singularis Forel subsp. rotula Forel. 



Cerapachys (Phyracaces) singularis Forel race rotula Forel, Rev. 

 Suisse Zool., 18, 1910, p. 21, ^ . 



Cerapachys singularis var. ratula (sic!) Froggatt, Agric. Gaz. N. S. 

 W., 1905, p. 15. 



Phyracaces singularis var. rotula Emery, Gen. Insect. Fasc. 118, 

 1911,' p. 11. 



New South Wales: Inverall (W. W. Froggatt). 



