J. G. Bradbury 

 a. Common louse-fly, Ornithomya aviculmia, with fu'ly de\eloped wings ( x g-q) 



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Arthur L. E. Barron J. G. Bradbury 



b. Swallow louse-fly, Stenepteryx hiruudinis, c. Sheep keel, Melophagus ovinus, entirely 



with non-functional wings ( x 5-1) de\oid of wings ( x 7) 



Plate IX LOUSE-FLIES (HIPPOBOSCIDAE) 



