1923 ] Ants of the Genera Mijopias and Acanthoponcra 
T79 
tate; upper surface of head, thorax, petiole, postpetiole and 
first gastric segment rather coarsely punctate, the punctures 
being smallest and most numerous on the head, largest and 
least numerous on the thorax and node and intermediate in 
size and density on the postpetiole and gaster. Legs rather 
finely and indistinctly punctulate. 
Hairs yellow, sparse, erect or suberect, longest on the 
gaster; short, abundant and subappressed on the appendages. 
Pubescence long, distinct only on the dorsal surface of the head. 
Deep ferruginous brown; clypeus and borders of mandibles 
darker; legs paler, dull brownish yellow. 
Described from two specimens taken by Mr. A. M. Lea at 
Hobart, Tasmania. 
This species seems to be very close to the two other known 
species of the genus. It differs from amhlyops in possessing an 
additional tooth on the mandibles, from crihriceps in having 
a shorter head and petiole and smaller eyes, and from both in 
having a small rectangular shelf-like lobe which projects from 
the upper part of the clypeus immediately under and between 
the lobes of the frontal carinae. This last character is of peculiar 
significance since a similar though longer rectangular projection 
is one of the peculiarities of Trapeziopelta Alayr, a genus in 
other respects very closely related to Myopias, as Emery has 
remarked. One might, indeed, go so far as to regard Trapezio- 
pelta as a subgenus of Myopias. 
Genus Acanthoponera Mayr 
Acanthoponera {Anacanthoponera) imhellis Emery 
(Fig. 2.) 
Acanthoponera imhellis Emery, Ann. Soc. Ent. Belg. 39, 1895, 
p. 346^ ; Gen. Insect. Ponerinie 1911, p. 36 g ; Forel, 
Ark. Zook 9, 1915, p. 10 ^ . 
The typical form of this species was originally described 
from Kamerunga, Queenssland, but seems to be widely dis- 
tributed in Australia. Forel has recorded it from Adelaide, South 
Australia (E. Mjbberg), and I have seen specimens taken by 
Mr. A. M. Lea at Port Lincoln and Gawler in the same com- 
