31 4 Proceedings of the Royal Irish Academy. 



distribution on the Continent, its circumferential stations round the east, 

 south, and west of Great Britain and Ireland, tend to show that it entered 

 England from the south, and Ireland from the west. It may be very 

 probably regarded as an inhabitant of the old western Continental land in 

 pre-Glacial times. 



References. 



Bateson, W., and H. H. Brindley : On some cases of Variation in Secondary 

 Sexual Characters statistically examined. Proc. Zool. Soc, Lond., 1892,, 

 pp. 585-594. 



Burr, M. : Synopsis of the Orthoptera of Western Europe. Untom. Record T 

 vols, xv, xvi, xvii, xviii, xix, xx, xxi, 1903-9. 



Carpenter, G. H. : Orthoptera, in Eeport of Galway Field Club Union 

 Conference. Irish Nat., vol. iv, 1895, pp. 257-8. 



Evans, W. : A Contribution towards a list of Scottish Orthoptera. Ann. Scott, 

 Nat. Hist., 1901, pp. 26-31. 



Redtenbacher, J. : Die Dermatopteren und Orthopteren von Oesterreich- 

 Ungarn und Deutschland. Wien, 1900. 



