354 



lySECrS INFESTING DOMESTIC ANIMALS. 



Fig. 365.— Sheep Bot- Fig. 365. 



fly; i, the fly with its 

 wings closed ; 3, the same 

 with its wings expanded 

 — color, ashen-brown ; J, 

 the pupa — color, brown ; 

 4 and 6, the maggot or 

 grill) — color. Miiitish ; a, 

 the head ; b, the anal 

 plate ; 6, the young mag- 

 got ; c, its spiracles or 

 breathing })ores. ^ 



The Hy (Fig. 365, J and-^) is of a dirty ash color, with four 

 black lines on the thorax, and the abdomen is spotted with 

 black. The grubs or maggots sometimes nuike their way even 

 into the brain, and to their ])resence is due the disease known 

 as "gruli in the head.'' 



Concerning this species, Figuier writes as follows : " Even 

 at the sight of this insect the sheei) feel the greatest terror. 

 As soon as one of them appears the flock becomes disturbed ; 

 the sheep that is attacked shakes its head when it feels the fly 

 on its nostril, and at the same time strikes the ground 

 violently with its forefeet. It then commences to run here 

 and there, holding its nose neiir the ground, smelling the 

 grass, and looking about anxiously to see if it is still pursued. 

 It is to avoid the attacks of the CEstrns that, during the hot 

 days of Summer, sheep lie down with their nostrils buried in 

 dusty ruts, or stand up with their heads lowered between their 

 fore-legs and their noses nearly in contact with the ground- 

 When these poor beasts are in the open country they are 

 observed assembled with their nostrils against each other and 

 very near the ground, so that those which occupy the outside 

 are alone exposed." 



Rkmediks. — Use Nos. 93, 94 and 95. 



NoTK. — The above remedies have been used, with excellent 

 resuls by Messrs Green and Trainer, of Sacramento, at their 

 farms in Placin- Countv. 



