April, 1906.] j^q 



postero-dorsal bristle a little beyond middle, and a single antero-ventral bristle at 

 one-fourth to one-third from apex. Wings hyaline or tinged with yellowish-brown, 

 last section of ith longitudinal vein about two and a half times as long as the 

 penultimate j calyptra strongly tinged with yellowish -brown ; halteres black. 

 Size, 5—5^ mm. 



Female : Frons dull black, ocellar triangle and orbits cinereous. Thorax 

 blackish-cinereous and slightly shining. Abdomen conical and pointed, with 

 cinereous or olive-cinereous tomentum, unicolorous. Front femora with a complete 

 row of about eight strong postero-ventral bristles. Middle femora with four to five 

 erect venti-al bristles in basal third, followed by a regular row of very small decum- 

 bent ones, which point towards apex ; middle tibise with two posterior bristles at 

 one-third and two- thirds from base respectively (sometin»es a little closer together 

 about the middle). Hind femora with three long antero-ventral bristles in apical 

 third, with a i'evf irregular small ones, in basal portion ; hind tibife with one sub- 

 apical and one median dorsal, one subapical and one median antero-dorsal, and one 

 large antero-ventral bristle at one-third from apex. Wings hyaline; calyptra with 

 yellowish margins : halteres black. 



This is a widely distributed but not very common species. 

 1 Lave examined over thirty specimens, taken in all parts of the 

 country, from Devonshire and the New Forest to Arran and the 

 Edinburgh district, also Ireland. It seems to be an early species, 

 most of the specimens having been taken in May, but the dates range 

 from May 2nd to September 9th. 



14. — H. CINEEEA, Dsv. Male: Eyes bare, contiguous; arista slightly thickened 

 and distinctly pubescent for the greater part of its length. Thorax black and 

 slightly shining on its anterior two-thirds, posterior third cinereous, sending forward 

 two narrow cinereous lines, which reach as far as the suture, shoulders light 

 cinereous. Abdomen covered with conspicuous light bluish-cinereous tomentum, 

 basal half of 1st segment and a broad interrupted central stripe black. Front 

 femora as in H. meteorica. Middle femora on posterior surface with a complete 

 row of long, fine hairs above and a row of about sixteen very strong spine-like 

 bristles below, extending along the basal two-thirds, and gradually diminishing in 

 length as they approach the apex ; middle tibia; with two posterior bristles at one- 

 fourth and one-half from apex respectively, with sometimes a smaller one between 

 them. Sind tibix as in H. meteorica, but there are sometimes two postero-dorsal 

 bristles, one median and the other post-median. Wings hyaline or very slightly 

 tinged with yellowish-brown; calyptra lohitish hyaline, never tinged with yellowish- 

 brown; halteres yellowish-brown. Size 5|— 6mm. 

 Female : Unknown. 



This well marked species is evidently rare. I have only seen five 

 specimens, viz., a male taken by Mr. Verrall at N^ewmarket, May 29th, 

 1886, and four males from Padstow, Cornwall, taken by Mr. C. Gr. 

 Lamb in July, 1901. Mr. Verrall included it in his "List" as 

 M. dentimana, Mg. 



