and antennae of different species vary sufficiently to form several 

 divisions. 



B. Seta of antennae pectinated above only. 



2. E. palustris Fall. — Meig. 6. 115. 2. — July, marshy places, Southgate. 



3. E. obscura Meig. — May, moist grass, Southgate. 



5*. E. spilota Hal. — Curt. Brit. Ent. pi. 413. — Taken in Ireland by Mr. 



Haliday. 

 5^. E. defecta Hal. — A single specimen on grass. — Ditto ditto, 



C. Seta of antennae pubescent or entirely naked. 



6. E. littoralis Meig. — End of May, Southampton, J. C. — May and June, 



moist grass, Southgate and Ireland. 



7. E. coarctata Fall. — Ireland, not rare ; Mr. Haliday has a specimen in 



which the nervures vary. 



8. E. 4-punctata Meig. — May and June, moist grass, Southgate. 

 8^. E. compta Hal. — Taken in Ireland. 



9. E. riparia Fall. — I first found specimens the middle of October, flying 



over salt-water ponds in an island called New England, on the 

 coast of Essex, and afterwards on the shore near Wareham, in 

 June. Mr. Haliday finds it in similar situations, and Mr. 

 Walker takes it on aquatic plants at Southgate, as well as Nos. 

 11. 12. 14. 15. 16. and 19. 

 9^. E. micans Hal. — Found with the former. 



10. E. aquila Fall. — Mr. Haliday, Ireland I 

 IC*. E. cesta Hal. — On grass, Ireland. 



11. E. lacustris Meig. 



12. E. stagnalis Fall. — Abundant in Ireland on sea-coast marshes ; begin- 



ning of May, Wrentham, Suffolk. 

 12». E. lutosa Hal. — With the last, common. 

 12^. E. aestuans Hal. 



13. E. paludum Meig. — Not common, on sea-coast marshes, Ireland. 



14. E. noctula Meig. — Beginning of May, in abundance in a ditch. Coomb- 



wood, J. C. ; on grass, Ireland. 

 14*. E. Graminum Hal. 



15. E. quadrata Fall. — On grass, Ireland. 



IS**. E. despecta Hal. 16. E. 4-guttata Meig. 



19. E. glabricula Meig. — Not common in Ireland. 



20. E. leucostoma Meig.? 21. E. stictica Meig. 

 23. E. interstincta Fa^/. 25. E. flavipes Fall. 

 27. E. posticata Meig. 30. E. picta FalL 



The last 5 species were taken by Mr. Haliday in Ireland, 

 who says they seem to be in some degree related to Sciomyza, 

 and that E. picta, according to the antennae, belongs to divi- 

 sion B. 



31. E. guttata Fall. — June, moist grass, Southgate. 

 34. E. Fossarum Hal. — On moist banks, Ireland. 



The value of giving an entire list of Meigen's species be- 

 longing to those genera that were contained in his last volume 

 is well exemplified in this genus, for at the time my Guide was 

 published, only 3 of his species had been ascertained to be 

 British, but by the exertions of two friends, our Fauna is now 

 augmented to upwards of thirty. 



The Plant is Lycopsis arvejisis (Wild Bugloss). 



