37 



cocoons of a burnet moth, most probably Anthrocera {ZygcBna) 

 filipendulcE, all of which contained an ichneumon in a very tough 

 inner cocoon of its own. After opening one of these cocoons in 

 October he found that the parasite was still in the larval state. 



Amongst the Hemiptera the last-mentioned observer found the 

 shield-bug, Picromeris bidens, in the larval stage, and kept it till it 

 matured, and Mr. Jennings took the Homopteron, Aphrophora salicis, 

 on sallows. 



Mr. Step was able to add the moUusk Helix arbustorum to the 

 list for the district. 



As regards pond-life of the minuter kind, both botanical and 

 zoological, Mr. W. West considers the captures as a whole were 

 particularly good. He reports as follows : The Bryophyte : Riciella 

 fluitans. Algae : Volvox globator and Closterium monili/ertim. 

 Polypes : Hydra viridis and H. vulgaris. Entomostraca : Daphnia 

 pulex, Cyclops gitadricor?iis, Diaptomus castor, and Cypris iristriata. 

 Rotatoria : Lacinularia socialis, Conichilus volvox, Melicerta ringens, 

 Limnias ceratophylli, Floscularia ornata, Stephanoceros eichortiii, and 

 various unrecognised free-swimming Rotifers. Infusoria : Vorticella 

 nebulifera, Vaginicola crystallina, Zoothamnium arbuscula, Actinophrys 

 sol, and Epistylis, as well as the freshwater sponge {Spongilla fluvia- 

 tilis). There were also numerous water-mites of various shapes and 

 colours. 



In conclusion I should like to thank Messrs. Ansorge, Ashdown, 

 Jennings, Priske, Step, Ward, and West for sending me notes, with 

 the help of which I have been enabled to draw up this report. 



