Caloptciyx. 2 1 3 



Date. 



In Belgium at the end of May and in June. It flies 

 at the same time as Anax impcrator. (De Selys.j 



Distribution. 



This fine Dragonfl}- has a vcf)' restricted range in 

 this countr)'. It is only found in the Fens, and, till 

 one was taken about five years ago, it was thought to 

 have become extinct e\-en there. McLachlan sa}-s that 

 it used to be common near Yarmouth, while Bath sa}'S 

 that it was formerly taken at Halvergate, in Norfolk, 

 and Whittlesea Mere, in Cambridgeshire. The onl}' 

 dated records I possess are two specimens near Norwich 

 in 1 87 1 (C. G. Barrett), and one in the Fens in 

 1893 (W. H. Bath). The fact of its coming to light 

 again after being unnoticed for so long should 

 encourage Fen collectors in the early summer (perhaps 

 early June) to make an attempt to place this insect in 

 a more stable position on our list. 



26. Calopteryx virgo, Linn. 



(Plate XX.) 

 Synonymy. 



Libcllula virgo, Linn. S}'st. Nat. i. 545, n. 17 (1758) I 

 Linn. Faun. Suec. 374, n. 1470 (176 1). Agn'oii virgo, 

 Charp. Hon Ent. 4 (1825); Charp. Mon. Lib. Eur. 134, 

 t. 31 (1840); Kirby S}'n. Cat. Neur. Odon. 98 (1890). 

 Calcptcryx virgo, Steph. Illustr. Brit. Ent. Mand. vi. 



