28o Bayford : Notes on Blethisa nuiltipunctata , etc. 



aurantiaca Schrad., Dictydhini U77ibilicatum Schrad. common, 

 Arcyria incarnaia Pers. common, A. flava Pers. very abund- 

 ant, A. punicea Pers., A. alhida Pers., Trichia varui Pers., 

 T. hotrytis Pers., T. fallax Pers. abundant, T. pershnilis 

 Karst., Reticularia lycoperdon Bull., Lycogala miniatiun Pers. 

 The occurrence of so many species in a small area at the 

 same time indicates a mycetozoan fauna somewhat above the 

 averagfe. 



Mr. Philip reports : — The river Wharfe and tributary streams 

 in the valley yielded the following- species of Diatoms : — 



Achnanthes ynicrocephala. Goniphonevia gracile. 



Amphipleicra pellucida. Gomphonema ijitricaticm. 



Cocconeis pediculus. Gomphonema ?ii07ita?ium. 



Cocconeis placetitula. Navicula amphisbcena. 



Cynihella cistida. Navicida radiosa. 



Cymbella Helvetica. Nitzschia linearis. 



Cymhella lanceolata. Rhoicosphenia ciirvata. 



Cymbella obtiisa. Syiiedra amphicephala. 



Encyonema ccespitosiim. Synedra pidchella. 

 Gomphofiema geminatjim {owrXar^esi Synedra Ulna. 



British freshwater diatom). Synedra Vaiicherice. 

 Gomphoyiema constrictiini. 



In addition to some of the above the g'ills on Buckden Pike 

 contained the following species : — 



Diatoma hiemale. Very plentiful Melosira arenaria. 



and entirely typical. The var. Navicula gracilis, 



mesodon, which is most common Nitzschia dubia. 



in the West Yorkshire district, Nitzschia sigmoidea. 



was not found at all. At the Pleurosigma atte?i2iatum. 

 recent Hebden Bridge excursion 



these conditions were reversed. T. S. 



NOTES ON 



BLETHISA MULTIPUNCTATA L. 



AND OTHER GEODEPHAGOUS BEETLES. 



E. G. BAYFORD, 

 Barnsley. 



Eighteen years ago the first sheet of the Rev. W. C. Hey's 

 'List of the Coleoptera of Yorkshire' was published in 'The 

 Transactions of the Yorkshire Naturalists' Union.' Since that 

 event a number of coleopterists have arisen in various parts of 

 the county, with the result that many of the records for species 

 included in the list ha\ e been brought up to date, and the range 

 of others has been found to be more extensive than there 

 indicated. With regard to certain species all that could be 



Naturalist, 



