l8o MASON : DIPTERA OF THK ALFORD DISTRICT 



Fam. ORTAJJDAZ. 



Ptilonota centralis F. Well, one, June 16th, 1888; J.E.M. 



(G.H.V.). 

 Platystoma seminationis F. Well, June 27th, 1886; J.E.M. 



(E.B.) ; and June 16th, 1888 ; J.E.M. (G.H.V.). 

 Seoptera vibrans L. Alford, one, July 5th, 1888; J.E.M 



(G.H.V.). 



Fam. TRYPETIDA:. 



Acidia heraclei L. S.-with-Thoresthorpe, one, June 4th, 1888; 

 J.E.M. (G.H.V.) 



Spilographa zoe Mg. Well, one male, June 10th, 1888 ; J.E.M. 



(G.H.V.). Alford, one female, June 10th, 1888 ; J.E.M. 

 (G.H.V.). 



Trypeta cornuta Alford district, one (C.O.W.). 



Fam. LONCHACIDA?. 



Palloptera arcuata Fin. Well, June 1887 ; J.E.M. (E.B.). 



Fam. SAPROMYZIDJE, 



Sapromyza rorida Fin. Alford district, two (C.O.W.) 

 Lauxania aenea Fin. Alford district, two (C.O.W.). 



Fam. OPOMYZID.K. 



Opomyza germinationis L. Claythorpe, July 6th, 1887 ; J.E.M. 



(E.B.). Alford district, one (C.O.W.). 



Fam. SEPSID.E. 



■ 



Sepsis cynipsea L. Well, Sept. 22nd, 1886 ; J.E.M. (E.B.). 



Claythorpe, July 6th, 1887; J.E.M. (E.B.). Alford district, 

 two (CO. W.). 



Sepsis nigripes Mg. Ailby, one female, Oct. 17th, 188S; J.E.M. 

 (G.H.V. }. 



Cheligaster putris. Well, June, 1887; J.E.M. (E.B.). 



Fam. CHLOROPIDAu 



Chlorops taeniopus Mg. Alford, Well, Willoughby-with-Sloothby, 



I 



larvae, pupae, imagines, bred June-July, 1889 (J.E.M.). 



Fam. PHORIDsF.. 



Phora rufipes Mg. Alford, Jan. 1887; J.E.M. (E.B.). 



Naturalist* 



