THE GEOGRAPHICAL DISTRIBUTION OF ANTS. 



'53 



paratively small number of species, they have considerable economic 

 importance. The following have been brought to our shores and have 

 succeeded in gaining a foothold, especially in dwellings where they do 



FIG. 86. The Argentine ant (Iridomyrmex Iiuniilis). (Courtesy of Mr. W. Newell, 

 drawing by Miss Charlotte M. King.) A, Worker; A', head; A", petiole of same in 

 profile ; B, dealated female ; B' , head : B", petiole of same ; C, male ; C' , head ; C" , 

 petiole. 



not come into competition with our native species: M onomorium pJia- 

 raonis, salomonis, destructor and floricola, Solcnopsis ntfa, Phcidolc 

 megacephala and flai'cns, Tctrainorium cespitum, guineense and 



