Ashworth : Additions to List of Yorkshire Diptera. 



05 



Tipula confusa V.d. Wulp. Woo c 

 hall (Calverley), nth 

 September, '05. 

 rufina Mg. Otley, 7th 

 September, '06 ; Ilkley, 

 * 24th May, '07. 



„ hortensis Mg. AustAvick, 

 26th May, '05 ; Ryl- 

 stone, 5th June, '06. 

 melanoceras Schum. Rom- 

 balds Moor (above jSIor- 

 ton), September, '06. 

 lateralis Mg. Ilkley, 19th 

 June, '06. ; Otley, 5th 

 May, '07. 

 ,, lutescensF. Bow Beck, 28th 

 August, '07 ; Arthing- 

 ton, loth July, '06 ; 

 Ilkley, 14th September, 

 '07. 



paludosaMg. More common 

 perhaps even than T. 

 oleracea, especially dur- 

 ing the remarkable visi- 

 tation about Bradford 

 during July and August, 

 1904. 



„ fascipennis Mg. Ilkley, 21st 

 July, '07. 



Fam. Stratiomyid.^;. 



Sargus iridatus Scop. Pudsey, 3rd 



July, '05. 

 Bevis vallata Forst. Thackley, 8th 

 July, '05. ; Ilkley, 20th 

 July, '06. 

 ,, chalyheata Forst. Ilkley, 24tli 



July, '07. 

 „ geniculata Curt. Thackley, 

 8th July, '05. 



Fam. Leptid^. 



Symphoromyia crassicovnis Fz. 

 Stanningley, 24th June, '05. 



Fam. Empid.^;. 



RhampJwmyia nigripes F. Aust- 

 wick, 26th May, 

 '05 ; Woodhail, 

 Hills (Calverley), 

 9th June, '05. 

 sulcata Fin. Clap- 

 ham, 23rd May, 

 '05 ; Austwick, 

 26th May, '05. 



19 March i. 



Empis tessellata F. Allerton, June 

 '06, J. W. Carter ; Lais- 

 terdyke, June, '04 ; 

 Bramhope, 12th June, 

 •07. 



opaca F. Clapham, 26th 

 May, '05 ; Thirsk, 2nd 

 June, '05. 



vernal is Mg, Ilkley, 24th 

 May, '07. 



chioptera Fin. Clapham, 

 23rd May, '05 ; Bolton 

 Woods, 31st May, '06 ; 

 Austwick, 26th May, '05 

 Hilar a maiira F. Woodhail Hills, 

 (Calverley). 9th June, 

 '05 ; Clapham, 26th 

 ]\Iay, '05 ; Ilkley, 2nd 

 June, '06. 



quadrivittata Mg. Ilkley, 

 13th June, '07. 



chorica Fin. Y.N.U;, Few- 

 ston, June, '06. 

 Tachydromia flavicornis Mg. Aust- 

 wick, 26th Ma}', '05. 



Fam. DoLicHOPODiD^,. 

 Liancaliis rirens Scop. Addingham 

 Moorside, 29th August, '06 ; 

 Bow Beck, near Ilkley, 28th 

 August, '07. 



Fam. Syrphid^. 

 Chilosia antiqua Mg. Ilkley, 7th 

 July, '06, 28th June, 

 '07. 



albitarsis Mg. Ilkley, 28th 



June, '07. 

 vernalis Fin. Bridlington, 

 May, '07. 

 Ischyrosyrphus glaucius L. Calver- 

 ley, 2nd September, '05. 

 Catabomba pyrastri L. Shipley, 

 September, '05, F. Midgley, Wil- 

 sden, August, '06 ; W. R, 

 Butterfield, Ilkley, October, '06, 

 (Common about Bradford, Aug- 

 ust-September, '05, and may be 

 found every year). 

 Syrphus tricinctus Fin. Thornbury, 

 nth September, '05; 

 Wllsden, 7th Septem- 

 ber, '07, W. R. Butter- 

 held. 



lunulatus Mg. Ilkley, June 

 '07. 



cinctellus Ztt. Bow Beck, 

 Ilkley, 28th August, '07 



