﻿BRITISH ODONATA IN 1911. 135 



previously captured earlier than May 14th, although Mr. C. A. 

 Briggs once met with it at Egham on April 29th. 



Col. J. W. Yerbury gave me a teneral male of Galop- 

 teryx virgo, Linn., which he took at Shaugh Bridge on May 

 18th. He said that it was " in numbers on the banks of the 

 Plym." 



On May 20th I visited the Black Pond on Esher Common in 

 Surrey, and there found on the wing Cordulia cenea, Linu., 

 and Libellula quadrimaculata, Linn. On May 81st I went in 

 search of dragonflies along Olberwater and in its neighbourhood 

 in the New Forest. P. ni/mphula was very common, and pairs 

 were frequently flying connected per collum. A small plant of 

 Drosera intermedia had caught a female by the end of the 

 abdomen, and one leaf apparently was powerful enough to hold 

 it a prisoner. C. virgo was fairly common, and pairs were some- 

 times seen connected j^er collum. Of Agrion mercuriale, Charp., 

 I captured several females, but of males I caught none, though 

 I probably saw just a single specimen. Presumably the females 

 were earlier than the males. A few teneral examples of Orthetrum 

 ccerulescens, Fabr., were seen, and a female was captured. As I 

 found nymph-skins of Cordulegaster annulatus, Latr., on Myrica 

 gale this species must have been out, but I did not see imagines. 

 I was specially on the look-out for Gomphus vidgatissimus, Linn., 

 and Ischnura pumilio, Charp., but did not recognise either, nor 

 could I find them in the Forest on June 22nd, nor yet again at 

 the beginning of July. At the end of June, in addition to the 

 species seen on May 31st, Platycnemis pennipes, Pall., and 

 Pyrrliosoma tenellum, Vill., were on the wing. On June 20th in 

 the New Forest a few full-coloured blue 0. ccerulescens were seen, 

 and in close proximity to a very teneral specimen I secured 

 a nymph -skin. 



On June 14th Mr. W. H. Pearsall (Dalton-in-Furness) sent 

 me a specimen of C. virgo, in connection with which he said : — 

 " The tlies were in some quantity, hovering — a most beautiful 

 sight — over Scirpus lacustris in Eusland Pool, between Haver- 

 thwaite and Piusland in North Lancashire." 



Mr. C. W. Bracken, in the early summer, took a pair of 

 P. nyniphida at Landrake on a creek of the Tamar (May 16th) 

 and found C. virgo common on the River Plym (June 3rd), and 

 Enallagma cyathigerum, Charp., male and female, on the upper 

 courses of the Plym at the edge of the moor (June 29th). 



From July Slst till September 12th I was in the New Forest 

 where I met with P. tenellum, and its vars. erythrogastrum and 

 melanotum; E. cyathigerum; 0. ccerulescens ; C. virgo; Sympetrum 

 striolatum, Charp.; C. annulatus; A. mercuriale ; Sympetrum 

 scoticum, Don ; P. pennipes ; P. nymphula ; Ischnura elegans, 

 Lind. ; .Eschna cyanea, Miill. ; Lestes sponsa, Hans ; ALschna 

 juncea, Linn. ; Libellula depressa, Linn. — fifteen species. So late 



