Zoology 71 



Graphoderes chiereiis L. : has not been taken in the Cambridgeshire fens for 

 very many years; F. Balfour-Browne took a fair number in Norfolk, over 

 twenty years ago. 



Of the species Fowler considers to have disappeared before the 

 draining, one may mention: Trechus rivularis Gyll. : thought to be extinct. 

 The late A. J. Chitty and the writer took it sparingly in cut sedge bundles 

 at Wicken Fen in 1900. Since then, however, it has been taken again in 

 some numbers by several collectors. Dytiscus dimidiatus Berg. : considered 

 to have become exceedingly rare; in 1899 and 1900 the writer took it not 

 uncommonly in Wicken Fen. Oberea oculata L. : also considered to have 

 disappeared; was plentiful in 1898 and 1900, and was also taken on other 

 occasions by Beare, Bouskell and the writer. I believe, however, it has 

 got more scarce again. Lixus paraplecticus L., also supposed to have dis- 

 appeared, was found by Mr F. Bouskell and the writer in fair numbers, 

 in 1894, and appeared to be spreading. This also I believe is getting scarce 

 again. 



Space allows only brief notes on a few species from the different 

 sections of Coleoptera. 



In the Geodephaga or ground beetles, Ophonus ohscurus F., which occurs 

 at the foot of the Devil's Dyke near Swaffham, appears to be almost 

 confined to Cambridgeshire, though the writer has taken it at Abbotsbury 

 in Dorsetshire. Chlaenius holosericeus [tristis Schal.) was formerly recorded 

 at Fen Ditton in 1827, and by Charles Darwin near Cambridge. Dr Power 

 took it in Burwell Fen, but it has not since been taken in Cambridgeshire. 

 The beautiful Panageus crux-major L. occurs sparingly under horse-cut 

 sedge; it used to be more plentiful formerly. 



The water beetles are well represented and we have already dealt with 

 the most interesting species. The most noteworthy of the Hydrophilidae is 

 the large Hydrophilus piceus L., which used to be common under water 

 liHes in the Wicken Poor's Fen; it is scarcer now. The very rare Spercheus 

 emarginatiis was taken by Prof Babington in Burwell Fen; it has not 

 occurred in Cambridgeshire since. 



It is hard to choose which species to mention out of the very large 

 number of Staphylinidae recorded. Microghssa margiriaUs Gr., once 

 recorded as British by Crotch (a single example near Cambridge), has 

 since been taken in birds' nests in many other counties. The very rare 

 Schistoglossa viduata Er. has recently been retaken in Cambridgesliire by 

 E. C. Bedwell in Wicken Fen. Passing on to the Clavicomia, Silpha 

 tristis 111. is found on paths and at roots of grass at Wicken Fen, and the 

 much rarer S. nigrita Creutz. was taken by Dr Power on the Gogmagog 

 Hills. 



