217 



DIPTERA FROM THE ALFORD AND LOUTH 

 DISTRICTS OF LINCOLNSHIRE. 



H. WALLIS KEW, F.E.S., 

 Lo7uio7i ; late Hon, Sec. to Louth Naturalists' Society, Lo7iik. 



In February last, Mr. Jas. Eardley Mason sent to me a box of flies 

 casually collected by him when in search of insects of another Order 

 in the Alford district, and they have now been examined by Mr. E. 

 Brunetti. Previously, Mr. Verrall had kindly identified others, 

 which I had collected in the neighbourhood of Louth. They are as 

 follows : — 



ALFORD DISTRICT. 



Chloromyia formosa, Chapel, 26th July, 1885 ; Sandhills, Chapel, 

 5th July, 1886. 



Microchrysa polita, Alford, two; Well, one, June 1887. 

 SargUS cuprarius, Claythorpe, 6th July, 1887 ; Chapel, two, July 

 1887. 



Haematopota pluvialis, Alford, one ; Well, one, 3rd July, 1887. 



Chrysops csecutiens, Alford. 



Thereva annulata, Chapel, 19th July, 1886. 



Eutolmus rufibarbis, Chapel, 12th July, 1886. 



Empis borealis, Well, 6th June, 1885. 



Eristalis tenax, Greenfield, 8th June, 1887 ; Alford, three, Sep- 

 tember and December, 1886. 



Eristalis arbustorum, Rigsby, 13th September, 1886; Chapel, 

 August 1887. 



Volucella pellucens, Claythorpe, 6th July, 1887. 



Helophilus pendulus, Chapel, August 1887. 



Syritta pipiens, Alford, ist September, 1887. 



Xylota segnis, Greenfield, 8th June, 1887. 



Rhing-ia campestris, Well, 5th June, 1887. 



Chilosia cestracea, Chapel, 26th July, 1885. 



Syrphus ribesii, Chapel, 25th July, 1887 ; Alford, 27th June, 1887 ; 

 Well, 5th June, 1887. 



Piatychirus clypeatus, Chapel, August, 1887. 



Baccha obscuripennis, Rigsby, 13th September, 1886. 



Musca corvina, Chapel, August 1887. 



Pollenia rudis, Rigsby, two, 3rd April, 18S7 ; Alford, 29th 



December 1886; Claythorpe, 6th July, 1887. 

 Morell ia hortorum, Chapel, 26th May, 1885. 



July i838. 



