175 



SOME DIPTERA OF THE 



ALFORD DISTRICT, NORTH LINCOLNSHIRE 



Extracted from a Register kept by 

 JAMES EARDLEY MASON, 



While President of the A If or d Naturalists* Society 



The record-books kept by the Alford Naturalists' Society during the 



years 1885 to 1891 are now in the possession of the Lincolnshire 



Naturalists' Union. They contain a considerable number of valuable 



(because thoroughly authenticated and therefore reliable) records of 



insects belonging to the * neglected orders/ and by the kind 



permission of the officers of the Union we are permitted to reproduce 



them as contributions towards the working out of the Lincolnshire 

 fauna. 



M 



We therefore have pleasure in publishing the records of Diptera, 

 which have been all verified by Mr. G. H. Verrall or Mr. E. Brunetti, 

 to whom Mr. Mason had been in the habit of submitting specimens. 



The arrangement and nomenclature used in the Record Books, 

 and adopted here, are those of Mr. G. H. VerralFs List of British 

 Diptera, 1888. 



Great care was always exercised by Mr. Mason in his work, and 

 the records are doubly initialed. The first initials — separated by 

 a semicolon from the records — are those of the collector. The 

 second initials — within parentheses — are those of the * determinator ' 

 by whom the specimens were examined and identified. 



The initials used in this paper are as follows : — 



E.B. E. Brunetti. 

 H.W.K. Harry Wallis Kevv. 

 J.E.M. James Eardley Mason. 



G.H.V. G. H. Verrall. 



C.O.W. Charles O. Waterhouse. 



Mr. Waterhouse's records are not precisely localised in the 

 register, but were all taken within the Alford Society's district, which 



Mablethorpe 



Skendleby, and South Ormesby. 



Fam. CECIDQMYW.F.. 



Cecidomyia destructor Say. Has been noted at Alford, Bilsbv. 



Rigsby-with-Ailby, Well, Willoughby, etc. (J.E.M.). 



Fam. MYCETOPHILID 



Acnernia nitidicollis Mg. Alford, one, female* August 3rd, 1S88; 

 J.E.M. (G.H.V,). 



June 1896. 



