Meigen, but I think they are very nearly related to Helomyza 

 (pi. 54;5.). Fallen has formed those whose wings have a vi- 

 brating action into the genus Palloptera, and Mr. Haliday's 

 genus Phyllomyza is based on the species figured in conse- 

 quence of its deflexed wings. The following are British and 

 Irish species. 



* Wings unspotted. 



1 . rorida Fall. — Harris Expo. pi. 2>'^.f. 20.? New Forest and 

 Belfast. 



2. obsoleta Tall. — flava Fah. 



3. pallida Tall. Holywood, Mr. Haliday. 



4. flava Linn. Hampton Court and Holywood. 



6. albiceps Fall. Mr. F. Walker, Southgate. 



7. quadripunctata Linn. 



8. sexpunctata Meig. 



12. femorella Fall. Gal way, Mr. Haliday. 

 14. praeusta Fall. Holywood. 



16. pallid iventris Fall. Holywood. 



17. rivosa Meig. Kent, and July Glengariff. 



** Wings with dark dots or streaks. 



21. m\xs,isi Meig. Tullymore Park; July, Turk Mountain. 



22. trimacula Meig. — minutus Harris, pi. %\.f.*l. Common. 



24. unicolor Fab. — marginella Fall. 



25. ustulata Fall. Holywood near Belfast. 



26. umbellatarum Fab. — gangraenosa Pafiz. 59. 22. 

 Umbellate flowers. Isle of Wight, 15th of Aug.; and 13th 



of June, Suffolk. 



27. arcuata Fab. Belfast. 



29. decempunctata Fall. — Meig. pi. 46./ 12. Belfast. 



30. notata Fall. 



20. litura Ho f.— Curt. B. E. pi. 605. fig. N, the natural size. 

 Oak-trees, Tullymore Park, Mr. Haliday ; Niton, Isle of 

 Wight, Mr. Vine ; June and July, New Forest, Mr. Dale; 

 and July common on oaks, under Turk Mountain, Killarney, 



J. Kj. 



The Plant is Viola tricolor, a variety of the Pansy Violet. 



