176 British Dragonflies. 



being the 14th. Mr. C. G. Hall, however, has taken it 

 at Dover on May 5, and Mr. C. A. Briggs saw it at 

 Egham in 1893 on April 29. Mr. Arkle records it as 

 late as July in North Wales, and Mr. Hamm took one 

 near Oxford in 1898 on the 9th of the same month. 



Habits. 



The male flies low and swiftly over ponds or along 

 canals and ditches. 



Distribution. 



Not many localities have been recorded for this 

 species. MeriojietlisJiirc : Black Falls, Maentwrog (J. 

 Arkle). CccrnarvonsJiire : Abersoch (J. Arkle). Oxford- 

 shire: Cowley Marsh, near, Oxford, one (A. H. Hamm). 

 CanibridgcsJiirc : Wicken Fen, common (W. J. Ash- 

 down). Norfoi/x : Broads, near Lowestoft (J. Prest). 

 BerksJiirc : Radley, one (M. Burr). HcrtfordsJiirc : 

 Hertford (Evans, Brit. Lib. 22). Essex : near Epping 

 (H. Doubleday) ; Colchester, rare (W. H. Harwood). 

 Kent : Deal and Sandwich, common, and Dover (C. G. 

 Hall) ; near Heme (Evans, Brit. Lib. 22). Surrey : 

 Mole at Esher, Byfleet, and Ockham Common 

 (W. J. L.) ; Leatherhead, Bisley, and Egham (C. A. 

 Briggs). Sussex: East, common (G. T. Porritt) ; Abbot's 

 Wood (G. T. Porritt); Hastings (W. H. Bath). Ulster: 

 Portora, Enniskillen (J. E. R. Allen). Comuvight : 

 Westport fj. J. Y. X. King). Leiuster : Twy Laogh 

 (J. J. Y. X. Kingj. Scotland: (De Selys Rew Odon. 

 114). Guernsey: (W. A. Luffj. 



