LEAFLET 14 7, U. S. DEPARTMENT OF AGRICULTURE 



Its workers are tiny, yellowish, and even smaller than Pharaoh's ant. 

 In houses it feeds almost entirely upon greasy substances. It is best 

 controlled by use of a poisoned bait (formula 4) . If it is known where 



Figure 3. — Winged female of the large black, or carpenter, ant. About 5 times natural size. 



the ants are coming from in the yard, poison can be placed there 

 and kept out of the house. 



The pavement ant (Tetramorium caespitum L.), introduced from 

 Europe, is well established along our Atlantic coast and builds its 



Figure 4. — The Argentine ant : A, Wingless female. B, Worker. C, Male. D, Immature 

 stages : a, Eggs ; b, young larva ; c, full-grown larva ; d, pupa, side view ; e, pupa, ventral 

 view ; f, pupa, dorsal view. All about 12 times natural size. 



