Yorkshire Naturalists Union: Annual Report, igii. 25 



Yorkshire Hymenoptera, Diptera, and Hemiptera Com- 

 mittee. — Considerable numbers of specimens of Hymenoptera 

 have been sent to the Referees, with the result that about ten 

 sawfiies, thirteen Ichneumonidae, and one species of the Oxyura 

 group, twenty-four in all, have been added to the Yorkshire list. 



Notes on the season's collecting have been sent in by Mr. 

 H. H. Corbett for Doncaster, Mr. Rosse Butterfield for 

 Keighley, and Mr. John F. Musham for Selby, while Mr. 

 Alfred Hodgson has done some collecting in and round Leeds. 

 It appears from their observations that the fine dry summer of 



1911 has not been so favourable for Hymenoptera as might have 

 been expected ; the ground having been too hard-baked for the 

 burrowing species. The social species, wasps in particular, have 

 been abundant. The Diptera sent for identification have not 

 yet been returned by the Referee, nor have any observations 

 been submitted by members, except by Mr. Musham. Only one 

 species of Hemiptera has been submitted, Picromerus bidens from 

 Skelmanthorpe. 



CONCHOLOGICAL SECTION. 



Mr. Musham writes : — The extraordinary drought of the last 

 summer must be held responsible for the meagre report, all but 

 the common species having been conspicuous by their absence. 



But note must be made of the occurrence at Bridlington of 

 some lovely varieties of Helix nemoralis, collected by Master 

 Stainforth, including that evanescent form var. violacea lahiata 

 (Taylor) ; and a colony of Hyalinia liicida (Drap.) in a back- 

 garden at Selby. 



Mr. A. J. Moore reports adding a few fresh localities for the 

 East Riding for some of the scarcer forms. 



Marine Biology. — At the annual meeting of the Committee at 

 Scarborough, the Scarborough Field Naturalists were able to add 

 many new finds to their list of records. The whole of the finds in 

 all branches have been printed in " The Naturalist " for December 

 with the exception of six sea- worms, which will be added in the 

 January number. The names were sent after the list was in print. 

 This list will be useful as forming the basis for future records. 



We are pleased to notice that the recent revival in marine 

 biological work has resulted in the local museums paying more 

 attention to this branch of natural history. 



BOTANICAL SECTION. 



Mr. J. Fraser Robinson writes : — Perusal of the monthly 

 parts of the present year's " Naturalist " will be quite sufficient 

 lo show that there is no decrease of interest in botanical science. 

 On the contrary there is an almost unexpected revival, especially 

 in the so-called "' floristic " phase, for which we believe the York- 

 shire Naturalists' Union is certainly to some extent happily 



1912 Jan. I. 



