30 The Irish Naturalist. March, 



mature larva, but it seems that Joly was essentially right, 

 though his statement that the mouth is " extreme ment 

 petite " is hardly justifiable ; relatively it is not remarkable 

 for its smallness. The difficulty of observing it in the 

 living insect is due to its situation in a fold of cuticle. The 

 disappearance of mouth-hooks is not surprising when it is 

 considered that the insect in its final larval stages no longer 

 requires strong jaws for piercing its way through the tissues 

 of its host, and that any food taken by the full grown 

 larva is of an entirely fluid nature. 



Royal College of Science, Dublin. 



REFERENCES. 



1. G. H. Carpenter and W. F. Prendergast. — ■" The Warble-flies : 



Further Experiments as to Life-history and Treatment." Joiirn. 

 Dept. Agric. and Tech. Instv., Ireland, vol. ix., No. 3, 1909. 



2. G. H. Carpenter and T. R. Hewitt. — "Reproductive Organs and 



Newly Hatched Larva of the Warble Fly." Sci. Proc. R. Dublin 

 Soc, vol. xiv., 1914. 



3. N. Joly. — " Recherches sur les Oestrides." Annates de la Societe 



Royale d' Agriculture, Lyon. Tome ix., 1846. 



4. E. W. Laake. — " Distinguishing Characters of the Larval Stages of 



the Ox- Warbles Hypoderma bovis and H. lineatum, with 

 description of a New Larval Stage." Journal of Agricultural 

 Research, Washington, vol. xxi., July, 1921. 



IRISH SOCIETIES. 



ROYAL ZOOLOGICAL SOCIETY. 



Recent gifts include a Leopard from Mr. R. H. Ellis, a Spotted Hyaena 

 from Dr. E. B. Bate, a Badger from Mr. A. B. A. Cottingham, Hedgehogs 

 from Messrs. E. M. Robinson and T. Mc Williams, a Belgian Hare from 

 Mrs. Sharman Crawford, a pair of Blue Rabbits from the Misses Smith, 

 Rabbits from Mr. J. A. Lewis, Rabbits and Guinea-pigs from Lt.-Col. 

 J. C. Craster, Hooded Crows and Jays from Mr. W. W. Despard, Barn 

 Owls from Mrs. McNaboe, Dr. R. de C. Wheeler and Mr. T. Grieve, a 

 Sulphur-crested Cockatoo from Miss P. M. Byrne, a Roseate Cockatoo 

 from Mrs. Church, a Blue-fronted Amazon from Mr. J. N. Colles, eleven 

 Tumbler Pigeons from Mr. H. Mayston, Japanese Silky Fowl from Mr. 

 J. A. Scott, Game Bantam and Silky Fowl from Dr. R. R. Leeper, a 



