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(Trichodeotes ) Bovicola ovis (L.) , a sheep biting louse 
The rotenone- sulfur d5p eradicated this louse on sheep.-- 
Schwardt and Matthysse ( 530 ) • 
Unidentified ohloken lice 
Infusions of orushed fresh roots of Derris phlllppinensis in 
water (It 100 or stronger) were effective against all kinds of lice 
on fowls in the Philippine Islands* It was recommended that con- 
centrations of at least 2 percent should be used* Concent rations 
as high as 5 percent oaused no injury to the fowls*— G&pue (218 )* 
Proprietary powders containing sodium fluoride, sodium fluosili- 
oate, pyrethrum, derris, or rotenone are satisfactory when dusted at 
the rate of about 1 pound per 100 hens*— Thorns sen and Doner (591 , p. 137) » 
Seventeen grown Buff Orpington hens, 3 large capons, and 11 baby 
chicks were thoroughly dipped on April 2 in a cube-sulfur dip, contain- 
ing 1 pound of cube (5 percent of rotenone), 10 pounds of 325-mesh 
sulfur, and 100 gallons of water* Several examinations, made from the 
seventh day after dipping to April 30, did not reveal a single live 
louse* There was no injury* The fluff of the feathers, after drying, 
appeared better than ever and the chickens were fat and healthy*— 
U. S. Bureau of Entomology and Plant Quarantine (616) . 
SIPH0NAPTER1 
Hectopsyllidae 
Eohldnophaga gallinacea (Westw.), the sticktlght flea 
The use of derris or pyrethrum powder, applied as a dust or wash 
to infested dogs, was reoommended in 1942.— Bishopp (54). 
Fulioidae 
Ctenooephalides oanis (Curt*), the dog flea 
Ctenocephalides felis (Bouche), the cat flea 
Pulex lrrltan8 L*, the human flea 
These species and the preceding one are the four oommc \ fleas that 
infest dogs, homes, and farm buildings. Fleas on dogs and cats are easi- 
