^8 NEW YORK STATE MUSEUM 



Fig. 21 Little red ant: a, female; b, worker or neuter, enlarged. (After Riley) 



The little black ant*^' is about one-quarter of an inch long and 

 though normally occurring under stones in yards, also invades the 

 house in considerable numbers. 



The pavement ant^*^ is about three-eighths of an inch long and is 

 very common along the Atlantic seaboard. 



The large, black ant*^' is the giant among our household ants. 

 It may be half an inch or more in length, is normally a wood feeder 

 and has frequently been designated as the carpenter ant. This 

 large species occasionally invades buildings, particularly in the 

 countrv', lives in the timbers and makes systematic levies upon the 

 food supplies of both kitchen and pantry. Occasionally this species 

 may become very abundant in a dwelling. 



Control measures. Dusting or blowing sodium fluoride about 

 the haunts of ants, even when they were extremely abundant, has 

 proved most satisfactorv*.^- 



The recent work against the Argentine ant in the South has 

 developed an improved arsenical syrup^'" which will not spoil and 

 is said to be superior to any other formula tested on account of its 

 stability at high temperatures, freedom from cr\-stallization and 

 continued attractiveness. It is made as follows : Prepare a syrup 

 with 15 pounds of granulated sugar. 33^ quarts of water and one- 

 quarter of an ounce of tartaric acid (crystallized). Boil for 30 

 minutes and allow to cool. Xext dissolve three-quarters of an 

 ounce of sodium arsenate fC.P.) in one pint of hot water, cool, 



'5' M o n o m o r i u m m i n u t u m Mayr. 

 •^^Tetramorium caespitum Linn. 

 •^'Camponotus herculeanus Linn. 

 «s Gibson. Can. Ent. 48 :365. 1016. 

 69 Barber. U. S. Dep't Agr. Bui. 2>77. P- i8- 1916. 



