174 THE ENTOMOLOGIST. 



one cause or another, at the time when the nymph was trans- 

 forming into the imago. It is probable that, if the insect had 

 lived for some time longer, the twisted tips would have fallen 

 away, and the wings would have assumed the abbreviated form 

 with rounded apex which is met with occasionally, as an in- 

 dividual peculiarity, in different species of Anisoptera. In the 

 present case the right wing is affected to a greater extent than 

 the left, the entire area lying beyond the nodus being malformed. 

 Mature and immature specimens of S. sanguineum were taken at 

 Eamsey, Hunts, on July 8th, and the species was flying in great 

 numbers at Wisley on August 26th. 



A male of Cordulia cenea occurred to Mr. Watts at Byfleet on 

 May 21st, and a female was taken by ourselves near the Black 

 Pond on June 16th. Search was made for Somatochlora metallica 

 in Surrey, where it occurred in 1910, but no specimens were 

 procured. 



Mr. Watts informs us that he took an emerging imago of 

 Brachytron hafniense at Byfleet on May 21st, and found the 

 species plentiful at Wisley on May 28th. A male of Mschna 

 mixta was caught at Wisley on August 20th (H. J. Watts). 

 Between, and including, September 3rd and 10th Mr. J. G. 

 Ashby found mixta in abundance at Hunton, near Yalding, 

 Kent, and he showed us several specimens which he had taken. 



Libellula depressa, Orthetrum ccerulescens, Calopteryx virgo, 

 Pyrrhosoma tenellum, and Agrion mercuriale were among the 

 species taken at Brockenhurst, in the New Forest, on June 11th 

 (H. J. Watts). At the same time and place a male imago of 

 Mschna cyanea was obtained with the nymph- skin from which it 

 had just escaped. This is the earliest emergence of the species 

 known to us. A female cyanea was taken by ourselves at 

 Eamsey on July 8th. On July 11th, an unusually early date, 

 Mr. Watts found M. grandis already on the wing at Ely. 



The same observer noted Calopteryx splendens at Wisley 

 (May 28th and July 23rd) ; Silverton, on the Kiver Exe (June 

 4th) ; Arundel (July 9th) ; and Ely (July 11th). 



A few adult males of Lestes dryas were taken near Eamsey, 

 Hunts, on July 8th. In consequence of information kindly 

 furnished to us by Mr. S. W. Kemp, we were able to identify 

 the ponds near Hanwell, Middlesex, where in 1902 he discovered 

 a large colony of this interesting species. We found that we 

 knew the ponds already, and had examined them for Odonata in 

 1910. We paid several further visits to the place in 1911, but no 

 trace of the species could be found in either year. Mr. E. A. 

 Waterhouse has been so good as to give us specimens of dryas 

 taken by himself at the ponds in question on July 17th, 1902, in 

 company with Mr. Kemp, and further (teneral) examples obtained 

 there on June 26th, 1903. Mr. Waterhouse tells us that he has 

 not seen the insect since 1903, although he has been to the 



