302 Field Notes. 



MOLLUSC A. 

 Marine Shells at Bridlington. — At a visit to Bridlington 

 on July 30th, I came across several interesting shells, which, 

 should be added to the list obtained there at the meeting of 

 Yorkshire naturalists on May 27th, viz. : — Gari {Psammobia)i 

 /eroensis, Cultellus pelliicidus, Capiilus hungaricus, Natica 

 catena, Turritella communis, Ocinebra [Murex) erinacea, Nassa 

 reticulata, Nassa incrassata, Bela trevelyana. Of these, Nassa 

 reticulata and Ocinebra erinacea were very much worn, and 

 Tiirritella communis is only a fragment of a half-grown shell. 

 This mollusc abounds at Redcar, from which locality the shell 

 has been probably washed down. Nassa reticulata, though one 

 of the commonest shells of our southern shores, is very rarely 

 found on the Yorkshire coast. This is only the second specimen 

 which I have come across ; the other was at Scarborough, and 

 was also much worn. Capulus hungaricus is the largest speci- 

 men I have found on our coast, the young shell being not at all 

 uncommon from Bridlington to Redcar. Like Pecten opercularis, 

 it is probably an inhabitant of the deep sea, which comes in 

 towards the shore to breed. Ocinebra is not a common shell 

 on the Yorkshire coast, but appears to be rather more frequent 

 in the south, about Hornsea, than in the north. The young 

 occur, but seldom, in ' shell sand.' Cultellus pellucid us was 

 also a very young specimen about one-third of an inch in 

 length.— F. H. Woods, Bainton. 



HYMENOPTERA, etc. 



Hymenoptera; etc., at Tebay. — The following is a list 

 of the Aculeate Hymenoptera, etc., captured or seen during the 

 Tebay excursion of the Yorkshire Naturalists' Union, the most 

 interesting capture was that of a dipteron — Sericomyia borealis.. 

 Formica fusca L. (W. Y.), Myrmica rubra L. (W.Y.), Odyneru-s 

 trimarginatus Zett. W., 0. parietiniis L., Vespa vulgaris L. 

 (W. and Y.), V. sylvestris Scop. (W.), V. norvegica Fab. (W. and 

 Y.), Halictus rubictindus Chr. (W. and Y.), H. cylindricus. Fab. 

 W., Psithyvus vestalis Fourc (W. & Y.), Bombus agrorum Fab. 

 (W. and Y.), B.lapponicus Fab. (Cautley Spout, one), B.prato- 

 rum L. (W. and Y.), B. terrestris L. (W. and Y.). 



All the specimens were collected on the left-side of the river 

 Lune, between Tebay and Lon Gill, B. lapponicus excepted. 



On July 6th I captured a fine male Sericomyia borealis Fin. 

 on a head of Knapseed near Boroughbridge. 



Among Silurian debris near Tebay, I was delighted to find 

 cocoons of a species of Osmia.- — Rosse Butterfield. 



* W. = Westmorland ; Y. = Yorkshire. 



Naturalist, 



