60 OSTRICH FLY. 



-collects on special parts of the infested animal ; and like 

 the Ostrich Fly causes irritation both by blood-sucking 

 and creeping, which it can do in any direction, sideways 

 or backwards, with great nimbleness, as well as forwards, 

 and the remedies used are local applications or dressings. 

 These are of any kind that will make the part obnoxious 

 to the fly, tobacco decoctions, soapsuds, and various 

 other things are found to succeed ; but of course there 

 is not the difficulty in the case of stock that there is with 

 the ostriches as to spoiling beauty of feathers. I know 

 McDougall's dip has been used for Ostrich Fly, but 

 have not yet had report of result. The remedy applied 

 by Mr. Cawood, of sulphuring the infested birds, would, 

 on general principle of treatment of insect attack to 

 fowls, appear likely to be useful, 



In treatment for " Forest Fly," the European kind 

 before referred to, it has been found that the great point 

 to check increase is the most careful attention to cleanli- 

 ness : the flies increase most rapidly on animals that 

 have been neglected, or in which state of health, con- 

 dition, or other circumstances of welfare or surroundings, 

 disposes them to attract the flies, and to suffer specially 

 when they come. 



No details are given of whether the attack lasts all the 

 year, or begins from flies which have spent the winter in 

 shelters, or have come out of the chrysalis in the spring ; 

 but if this latter is what happens, it could not fail to be 

 of service to use all measures available, such as white- 

 washing or cleaning out what might be exceedingly 

 likely to shelter, in any sheds or houses, or places used 

 for collecting or sheltering, or artificial hatching of the 

 ostriches, the chrysalids or the flies which presently 

 would start new attack on the birds. 



