Table io. — Biting preferences of principal anthropophilic species of Simulium — 

 Comparison between man and other animal hosts 



The biting preference in each group is expressed as the percentage of the total 

 number of flies biting man and the other animal subject. Each pair is comprised 



of two 6-hour observation periods. "Total number biting" represents the number 

 of flies that were collected from both subjects during the two 6-hour observation 

 periods. 



Percent biting 



A ^ 



Subject ochraccum metallicum callidum 



Man 85 10 8 



Horse 15 90 92 



Total number biting 404 985 1 14 



Man 99 26 31 



Mule I 74 69 



Total number biting 670 1,183 129 



Man 100 IS 44 



Donkey 85 56 



Total number biting 205 772 34 



Man 98 15 41 



Cow 2 85 59 



Total number biting 812 1,033 27 



Man 99 87 92 



Pig I 13 8 



Total number biting 870 255 25 



Man 94 (>7 S3 



Sheep 6 33 47 



Total number biting 2,531 902 153 



Man 90 54 69 



Dog 10 46 31 



Total number biting 1,128 687 80 



Man 78 61 40 



Goat 22 39 60 



Total number biting 303 259 78 



Man 99 98 100 



Cat I 2 o 



Total number biting 692 333 16 



Man 99 94 100 



Pigeon I 6 



Total number biting 231 51 3 



Man 100 80 100 



Duck 20 o 



Total number biting 77 I3S 4 



Man 99 96 94 



Turkey i 4 6 



Total number biting 1,077 424 33 



Man 99 94 lOO 



Chicken i 6 O 



Total number biting 363 88 23 



46 



