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On a Parasite on tlic Wallahy, 



LTII, — Parasite on the WaJlahif. 

 By W. Wesche, F.R.M.S. 



Mr. Fraxk Littler, of Launceston, Tasmania, sent me, 

 through tlie medium of ' Science Gossip,' a fly which he tells 

 me is parasitic on the wallaby ; these animals, when sick, are 

 said to swarm with them. 



The insect is a Dipteron, and belongs to the family Hippo- 

 boscidse, but is unknown to me ; and a search in the cabniets 

 at the British Museum (Natural History) failed to determine 



Fig. 1. — Parasite on wallaby, dorsal view. 

 Fig. 2. — Head, lateral view. 

 Fig. 3. — Tarsi and claws of middle leg. 

 Fig. 4. — Tarsi and claws of hind leg. 



it. It can, however, now be seen there, as I de): 

 specimens, including the " type " specimen, with Mr. E. E. 

 Austen. It is remarkable for two curious spined tubercles — 

 one might almost call them epaulets — on the shoulders, a 



