270 



JOURNAL OF ECONOMIC ENTOMOLOGY 



[Vol. 7 



TABLE I 

 ATTRACTIVENESS OF FLY BAITS AS INDICATED BY PERCENTAGES OF TOTAL FLIES CAPTURED 



10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 4 



Date of test, December, 1913 



10 



12 



17 



18 



22 



23 



24 



Vinegar GRorp: 



Vin. (plain) 



Vin.-sugar 



Vin.-bread 



Vin.-form. (10-1) 



Vin.-sugar-water (I-l-l) 



Vin.-water-dried blood (1-1-1). 



Formalin Group: 



Form. (40%) 



Form.-bread 



Form.-water(l-20) 



Form.-water(l-lO) 



Form. -water (1-5) 



Form .-water-sugar (1-10-1) 



Form.-water-bread (1-10) 



Form.-water-bran (1-10) 



Form.-water-ljeer (1-5-5) 



Form.-water-milk (1-5-5) 



Form.-water-dried blood (1-5-5) . . . 



Form .-beer-mi Ik (1-5-5) 



Form.-water-bichr. of pot. (1-20-1). 

 Forra.-vintgar ( 1-10) 



4.0 

 36.5 

 25.0 



8.6 



.1 



15.0 



5.4 



.6 

 1.0 



3.3 



22.0 



19.5 

 7.5 



S.S 



2.6 

 8.4 



1 

 3.5 



7.9 



21.4 



-Alcohol Grovp: 



20 Ale. 



21 Ale.- 



22 Ale- 



23 Ale. 



24 Ale.- 



25 Ale. 



26 Ale- 



27 Ale 



28 Ale. 



29 Ale. 



30 Ale. 



31 Ale. 



(95%) 



water (1-10) 



water (1-20) 



•cane-syrup (1-20) 



■water-bran (1-20) 



■water-cobalt (1-20-1) 



,-water-bichr. of pot. (1-20-1) . 



-water-sugar (1-20-1) 



.-water-beer (1-10-10) ....... 



water-dried blood (1-20-1) . . 

 -water-bread (1-20) 



(95%)-bread 



8.6 



BlCHROM.\TE OF PoT.^SH GrOIP: 



19 Bichr. of pot .-form. -water ( 1-1-20) . . . 



26 Bichr. of pot -ale .-water (1-1-21; 



32 Bichr. of pot .-water (1-20) 



Cobalt GRorp: 

 25 Cobalt-water-alc. (1-20-1) 



33 Cobalt -water ( 1-20) 



34 Cobalt-water-bread (1-20) 



35 Cobalt-water-dried blood (lO-lO-l) 



Milk Group: 



36 Milk (sweet) 



37 Milk (sour) 



16 Milk-water-form. (5-5-1) 



18 Milk-bread-form. (5-5-1) 



38 Milk (sweet)-bread 



39 Milk (sour)-bread 



.4 



3.4 



26.0 



5.5 



2.1 



3.4 



2.8 



32 9 



3.9 



8.4 



28.7 



.6 



14.5 



10 3 



11 3 

 3.5 



17.5 



11.0 



6.2. 

 1.7 



11.0 



7.3 

 4.6 



2.1 



5.5 



8.0 

 3.4 

 2.0 



33.5 



17.2 

 17.4 



.6 



4.6 



3.0 

 7.3 



3.0 



7.6 

 3.8 



1.7 

 2.5 



3 9 



28 7 



11 3 



17 1 



7.0 



