Agrioii. 289 



have thrown itself back earlier, as Liluiliila quadri- 

 luaciilata, &c., do, but probabh" did not. The part of 

 the development obser\ed agreed with that described 

 for P. uvmpJiula. 



Date. 



May 3 is the earliest date on wliich I have taken the 

 species, and August 16 the latest. It is at its best 

 about midsummer. 



Habits. 



A. pHclla haunts the vegetation by the sides of ponds 

 and ditches, and the long grass and rushes of damp 

 meadows near water. Like the rest of the Agrioiiiiue 

 its flight is weak and not long sustained. 



Distribution. 



Undoubtedly A. puclla is a very common species in 

 most parts of England, but apparently it does not occur 

 in Scotland, and perhaps not in the extreme North of 

 England. But few records have come to hand, owing no 

 doubt to the fact that observers think it unnecessary to 

 record localities for common species — a mistaken idea, 

 but a \ery prevalent one. Westmoreland : W'indermere, 

 in immense abundance (\V. H. Bath;*. Yorks/ure : 

 Selb\-, Thorne, Askham Bog, and Castle Howard (G. T. 

 Porrittj. C/icsdu're : Chester District, general (J. Arkle). 

 MerioticthsJiirc : Tan-y-bwlch, common, and Barmouth 

 (A. D. Imms). CanibridgcsJiiyc : Not common (K. J. 



* Entom. 1888, p. 62. In his "Handbook," p. 76(1890), Bath says of 

 F.. cyatliigeniui that it was in " immense swarms" in tlie same dibtrict. 

 Thou;,di both species fly together sometimes, it is not usual to iind botir 

 swarming near the same piece of water. 



U 



