OP THE WATER-BEETLE PELOBIUS TARDUS. 95 



This work on the life-history of Felohlns was begun in 1915 as 

 the commencement of a study of subacjuatic beetle larvse, my 

 intention then being to work out the life-histories of a Gyrinid 

 and an Haliplid. Tlie work on Felobms was almost completed 

 by the autumn of that year, when military duties took me away 

 from Cambridge. 



Since my return to entomological work, time has not permitted 

 me to continue on this line of research, and I have therefore 

 merely completed a number of observations on Pelohius and 

 written up the life-history of the beetle. 



Bihliograpliy . 



1. Balfour-Browne, F. — "The Life-history of a Water-beetle." 



Journal Royal Institution. 1913. 



2. Bayford, E. G., and Lawson, Thompso.v M. — Yorkshire: 



Victoria County History. Coleoptera. 1907. 



3. Duncan, J. — "Cat. of the Coleopterous Insects found in the 



neighbourhood of Edinburgh." Mem. Wernerian Soc. vi. 

 pp. 443-538. 1826-31. 



4. Fowler, W. W. — '■'•Felohius tardihs Hbst. in Yorks." Natura- 



list, xvii. p. 234. 1892. 



5. Haliday, a. H. — " MS. Notes on Irish Coleoptera." Publ. 



in Proc. Belfast Nat. Field Club, Appendix viii. 1885. 



6. Jahn, L. H. — " Coleoptera occurring in North Staflbrdshire. 



Prelim. List." North Staffs. Field Club Ann. Rep. and 

 Trans. 1904-5, xxxix. p. 73 et seq. 



7. Johnson, F. W., and Halbert, J. N. — "A List of the Beetles 



of Ireland." Proc. Roy. Irish Acad. ser. 3, vi. 1901. 



8. McDouGALL. — Nat. Hist. Journal. York and School Register, 



vi. 1880-82. 



9. Murray, A. — Coleoptera of Scotland. 1853. 



10. Sharp, D.^" Dytiscidfe." Sci. Trans. Roy. Dublin Soc. 



ser. 2, ii. 1880-82. 



11. ,, " The Coleoptera of Scotland." Scottish Natura- 



list, i. to iv. 1871-78. 



12. Sharp, W. E. — " The Hydradephaga of Lancashire and 



Cheshire " (Ent. Soc. of Lanes, and 

 Cheshire). 1892. 



13. ,, „ Victoria County History : Lancashire. 



1906. 



14. „ „ " Coleoptera of Lancashire and Cheshire " 



(Lanes, and Cheshire Ent. Soc. 31st 

 Ann. Rep. and Proc. for 1907). 1908. 



15. Stephens, J. F.— 111. Brit. Ent., Mand. ii. App. 1829. 



16. Watson, H. C— " Cybele Britannica." 1847-59. 4 vols. 



and Supp. 1. 1860. 



17. Wilson, J., and Duncan, J.— "EntomologiaEdinensis." 1844. 



