Cooke : Diptera of Lancashire and Cheshire. 163 



cardui in the larva and pnpa state. The larvae were feeding upon 

 thistles growing in a sequestered spot formed by the peculiar situation 

 of the rocks. The North Welsh butterflies seem to be very fitful in 

 character, and often disappointing to the collector ; but this may be 

 taken for what it is worth, as the past few years have been no 

 criterion for future success. 



CONTRIBUTION TO A LIST OF THE DIPTERA OF 

 LANCASHIRE AND CHESHIRE. 



(north of LANCASTER EXCEPTED). 



{Continued ). 



By Benjn. Cookb. 



MJJSCIDM— continued. 

 Cordylura pubera. Hazelgrove, scarce. 

 C. albipes and spinimana. Manchester. 

 C. liturata. Manchester ; Hazelgrove. 



C. obscura. Manchester ; Bowdon ; Whaleybridge. 

 Scatophage stercorarea, merdaria and lutarea. Common. 

 Sciomyza fuscipennis and obtusa. Manchester, scarce. 



S. cinerella. Cheshire coast. 



S. nana. Manchester. 



S. monilis. Bowdon. 



S. nigrimana. Marple. 



Helomyra flava. Manchester ; Hazelgrove. 



H. pallida. Manchester ; Bowdon. 



Leria serrata. Common. 



Dryomyza flaveola Manchester ; Bowdon. 



D, prseusta. Rivington ; Bowdon. 

 Tetanocera marginata. Southport, scarce. 



T. cucullaria and aratoria. Manchester ; Bowdon. 



T. reticulata and punctata. Bowdon. 



T. sylvatica. Manchester ; Bowdon ; Hazelgrove. 



T. elata. Bowdon ; Hazelgrove. 



Tetanops myopina. Southport ; Cheshire coast. 

 1 Sph^rocera denticulata and vaporariorum. Manchester. 

 I Borborus nitidus. Bowdon. 



B. equinus and ater. Abundant. 



Limosina sylvatica, limosa, arcuata and crassimana. Common. 

 L. scutellaris. Manchester ; Bowdon. 



