346 THE ENTOMOLOGIST. 



Fam. PsiLiDiE. — Gen. Piophila, Fall. 



91. P. Casei. Miisca Casei, Linn. Faun. Suec. 1850. 

 Mount Sinai. The cheese fly. Inhabits most parts of the 

 world. 



Fara. Phytomyzid^. — Gen. Phytomyza, Fall. 



92. P. obscurella ? Fall. Phyt. 4, 8. Cairo. Inhabits 

 Europe. 



Fam. HiPPOBOSCiD^. — Gen. Hippobosca, Linn. 



93. H. camelina, Leach. Eprob. Ins. 10, pi. 27, f. 11. 

 Hardly distinct from H. equina. Hor Tamanib. Tajura. 

 Wady Gharandel. Wady Hebran. Mount Sinai. 



Francis Walker. 



Entomological Notes, Captures, 8^c. 



Nemeohins Lncina near Wetherhy. — I took six specimens 

 of Nemeobius Lucina at Bramhara Park, near here, yesterday. 

 I used to take it abundantly at Crabbe, near Winchester; 

 but this is, I believe, almost the only locality in Yorkshire. 

 I knew they only came out on Monday, and yet the very 

 first day they were preparing for next year's brood. Last 

 night, Ma}^ 30, moths were more numerous than I have yet 

 seen them. — J. S. Wesley ; Wetherby, Tadcaster, May 23, 

 1871. 



Papilio Machaon at Dawsmere. — A fine imago of the 

 Papilio Machaon was captured at Dawsmere, near Long 

 Sutton, one day last week, by a labouring man. I am not 

 aware of it being taken in East Lincolnshire before. — W. H. 

 Brooks ; Long Sutton, Lincolnshire, June 1, 1871. 



T/te Migration of Aphides. — There is a peculiar form of 

 atmospheric dullness, which, if not confined to the vicinity 

 of our metropolis, is more frequent there than elsewhere, and 

 which is popularly designated a " blight in the air," and is 

 supposed, in some way, to have an injurious effect upon 

 animals, and certainly upon vegetation. Inquire the reason 

 of the latter circumstance, and very likely you will be 

 informed that this blight is caused by the travelling of a host 

 of insects from one spot to another; and some persons are 

 under the impression that they do not journey voluntarily, 



