NOTES ON BRITISH ODONATA IN 1921. 153 



present itself, but S. striolatum, Charp., bad appeared in some 

 numbers to complicate observation as regards at least the females. 

 This latter species was quite absent when I was there in July. 

 So my captures for this season stand at the single male ami 

 female quoted in the ' Entomologist.' The females were, if 

 present, elusive. The one secured is redder, , and not ' so 

 teneral-looking as those I took in 1912, 13, and 14. The West 

 Knighton Heath pond has quite dried up, most unfortunately. 

 The Morden pond is very low comparatively, but it is a big one. 

 Yet the nymphs, if present, must have a bad time from the very 

 numerous birds. As regards the non-appearance of S.fonscolombli 

 this month, I may point out that every time I have gone the 

 weather has been unfavourable — windy and cloudy, if not rainy, 

 though yesterday was better." 



K. South captured : Calopteryx splendens, Harris, at Rick- 

 mansworth Canal, Herts, on 1 June; Calopteryx virgo, Linn., 

 at Padworth, Berks, from 12-14 June, — one full-coloured male, 

 one male perhaps var. anceps, Steph., and one female with rather 

 narrow wings; Ischnura elegans, Vanderl., Pyrrhosoma nymphula, 

 Sulz., and Enallagma cyathigerum, Charp., also at Padworth from 

 12-14 June. 



A. Eandell Jackson reports : Ae. cyanea, Mull., A. imperator, 

 Leach, C. annulatus, Latr., C. aenea, Linn., L. depressa, Linn., 

 O. caerulescens, Fabr., C. virgo, Linn., I. elegans, Vanderl., A. 

 puella, Linn., P. nymphula, Salz., and E. cyathigerum, Charp., 

 at Ashdown Forest, Sussex, in June. In Delamere, etc., Cheshire, 

 in 1921 early things were numerous, but the later ones — 

 presumably affected by the drought — were rarer than usual. 

 Leucorrhinia dubia, Vanderl., and C. aenea, Linn, were common 

 in Delamere and he got a few Erythromma naias, Hans., in early 

 June. He saw a pair of what he was sure were Brachytron 

 pratense, Mull., in a lane near Chester at the end of May. As it 

 would be new to the county list he hopes to get it in 1922. Agrion 

 pulchellam, Vanderl., was absent from the place where it occurred 

 in 1920. 



F. J. Killington writes 14 Jan., 1922 : The year as a whole 

 has been the most disappointing one for Odonata that I have 

 experienced. Even so I was astonished at the number of 

 imagines that did get through considering that most of our local 

 ponds dried up completely {i.e. near Eastleigh, Hants), yet later 

 a fair number of such things as Ae. cyanea, Mull., appeared. 

 A. mercuriale, Charp., did not occur in abundance but of those 

 taken a fair percentage had aberrant markings on the 2nd 

 segment. I did not notice any imagines after June. A. puella, 

 Linn., A. pidchelhim, Vanderl. (scarce), P. nymphula, Sulz., /. 

 elegans, Vanderl., C. virgo, Linn., and C. splendens, Harris, were 

 all in evidence at the beginning of the season, but seemed to 

 disappear quickly. I came across one specimen only of Leatea 



