WANDERING, DRIVER OR VISITING ANTS. 157 



enemy. If the alarm should prove to be without 

 foundation, the victory won, or the danger passed, 

 the arch is quickly renewed, and the main column 

 marches forward as before in all the order of an 

 intellectual military discipline." 



This sub-family of ants is thought to be closely 

 connected with the Poneridse. 



It is only represented In Australia by two species 

 of the Genus Aenictus which are found in Queens- 



Iland. 

 C. Sub-Family Myrmicides. — Characteristics. — 

 , The females are large and winged ; the petiole is 

 t two jointed (has 2 nodes); the pupae are always 

 naked, with no cocoons. Small or medium 

 sized ants, example, Moftomorium, the little red meat 

 ant. 



D. Sub-Family Dolichoderides. — Characteristics. 

 — Petiole with one node ; no sting, it is only rudi- 

 mentary, but instead there are anal glands which 

 secrete a characteristic odour ; pupae are naked, never 

 in cocoons ; examples are DoUchoderns (the 

 **honeydew ant") ; Iridiomyrmex detectiis ("mound 

 or gravel ant"). 



The Gravel Ant has an iridescent sheen (hence 

 its name), and it makes large mounds of gravel — 

 sometimes there are several nests adjacent and 

 extending over 25 feet. They are strong runners, 

 having regular tracks over grass lands so as to 

 make a narrow footway across a paddock. We 

 have watched them running in pathways from the 

 nests to eucalyptus trees near, wher*e dozens would 

 be clustered around groups of froghoppers and lerp 



