new Ants from Australia. 431 



black colour. The terminal joints of the funiculus arc 

 distinctly shorter than in jii/osu/u. 



Myrmecia chasei, For., var. ludlowi, nov. 



^ . Agrees with Ford's description of chasei with the 

 following differences : — Some specimens slightly smaller. 

 Mandibles ^'f) mm. long, somewhat longer than the head 

 (as long as head in type). Shoulders of pronotura apparently 

 not so pronounced. Clypeus widely but not deeply emar- 

 ginate. First node once and a half as broad as long (almost 

 twice as broad as long in type), second node twice as broad 

 as long (two and a half times as broad as long in type). Head 

 densely reticulate between the rugse, but on the thorax and 

 first node the space between the rugre is more or less smooth 

 and shining. The neck of the pronotum is transversely striate, 

 the rest longitudinally, the striae slightly diverging in the 

 direction of the base of the segment ; the second node is 

 irregularly longitudinally rugose. There is a prominent 

 central ridge on the first node. 



Colour similar, but there is a black patch on the lower 

 lialf of the mesosternum, and a small one on the raeta- 

 sternum. 



The mandibles in their complete form have the typical 

 long curved apical tooth of Myrmecia, sensu stricto, ])ut in 

 all the series, except two specimens, this tooth is completely 

 worn away, leaving the mandibles with an oblique point. 



Ludlow, W.A. {Clark, no. 12). 



Type W.C.C. coll. 



This ant builds a cone-shaped earth-mound about one 

 foot in height, with an entrance on the top about two inches 

 in diameter, but there are also other entrances in the 

 ground beyond the mound. It is an active and fierce 

 insect. 



Myrnic, id iiiichaelseni, F(»r., var. fekthensis, nov. 



^ . Length ]() nun. (without mandibles) ; manddjles 

 I2"5 mm. DilTcrs from the type as below : — 



michdclseni. var. perthensis. 



Black; point of mandibles and Dark brown; mandibles, antennae 



funiculus, and tarsi brown. and legs red-brown; thorax and 



first node sometinu'S red-brown ; 



second node red-brown. 



Scape does not reach occiput. Scape exactly reaches the occi- 



First joint of funiculus equals pital border at its centre. First 



second. ji int slightly shorter tlian tlie 



second. 

 Second node almost twice and a Second node not quite twice as 



lialf as broad as the (irst. broad a„s first. 



