THE ENTOMOLOGIST. 333 



and terminating posteriorly in three small blunt tubercles, 

 the middle one the longest. Metathorax separated from the 

 niesothorax by a strangulation, narrowed in front and rounded 

 above and behind, with a bright glassy spot, like an ocellus, 

 on either side. Scale of the peduncle large, ovate, with its 

 upper margin entire. Metathorax and abdomen punctured. 

 Abdomen subglobose. 



On the ground amongst loose sticks and leaves. 



17. A. Tnamillntiis, Lowne. — Worker less than 2 lines long. 

 Obscurely rufo-piceous. Head broader than the thorax, 

 emarginate behind. Carinaj on the face short. Eyes large, 

 ovate. Flagellum covered with short hairs. Ocelli obsolete 

 in the workers. Thorax narrowed anteriorly, subglobose 

 above, its anterior and lateral margins sharp. Mesolhorax 

 separated from the thorax by a slight groove, terminated pos- 

 teriorly in two small rounded tubercles. Metathorax sub- 

 globose above, transversely striated with a few scattered hairs 

 on its sides. Scale of the peduncle ovate. Abdomen globose. 



On the ground amongst loose sticks and leaves. 



18. A. Kirhii, Lowne. — Worker 2 lines long, bright chest- 

 nut-red ; abdomen shining black. Head broader than the 

 thorax, deeply emarginate behind. Flagellum enlarged 

 towards the apex. Ocelli obsolete. Thorax subglobose. 

 Metathorax flattened laterally and narrowed in front, termi- 

 nating posteriorly in two long blunt converging tubercles. 

 Head and thorax punctured. Metathorax longitudinally 

 rugose. Scale of the peduncle ovate. Abdomen globose. 

 The whole insect is covered with scattered hairs. 



Under loose bark in spring and early summer. 



Genus Polyrachis. 

 a. Maxillary falpi elovgaled. 



19. P. Ammon, Sm. — I found the workers of this species 

 apparently hybernating in small colonies under stones, where 

 they construct no galleries or chambers. The Australian 

 species of this genus remain concealed until sunmier is well 

 advanced, and I think it extremely probable that later in the 

 summer they may construct a nest of some papyraceous or 

 other material, like P. nidificans ; of this, however, I have no 

 proof. 



•20. P. Latreillii. — In cracks in stumps, in spring. In 



