484 Syrphidae. 



and hind legs black-haired, or the femora with a few yellowish hairs 

 above ; the hind femora very short-spinulose below, with a little longer 

 bristles on the apical margin of the tooth; the hind tibiæ with a very 

 short, erect ciliation below. Wings hyaline or nearly so; cubital vein 



Fig. 163. Wing of T. scifa <?. 



curved a little down over the first posterior cell. Stigma weak, 

 eiongate. Squamulæ whitish yellow with a pale yellow fringe. Balteres 

 yellow. 



Female. Vertex and frons rather narrow; vertex black above, 

 the rest brownish pruinose, above the antennæ black, shining; the 

 hairs yellowish, darker on the vertex. Abdomen colom^ed mainly as 

 in the male but the red spots somewhat silvery pruinose on the front 

 corners; fourth segment without red spot. 



Length 7,5— 10 mm. 



T.scita is not rare in Denmark; Damhusmosen, Lersø, Ordrup 

 Mose, Ermelund, Dyrehaven, Lyngby Mose, Fure Sø; on Lolland at 

 Maribo and at Strandby west of Nysted ; on Langeland at Lohals ; on 

 Funen at Middelfart and Ullerslev, and in Jutland at Horsens and at 

 Gjerlev near Randers Fjord. My dates are ^^k — ^^'h. It occurs on 

 meadows and in fens with rich vegetation ; is has a curious behaviour 

 as it flies very low near the ground among the herbage. The pupa 

 was sifted from flood refuse in Ullerslev Mose on Funen, the imagines 

 came on ^^/s (N. P. Jørgensen). 



Geographical distribution : — Northern and middle Europe down 

 into France; towards the north to middle Sweden. 



35. Myiolepta Newm. 



(Myolepta). 



This genus seems to be related to Tropidia and is agreeing with 

 it in several respects, though the pjace of the medial cross-vein might 

 indicate another relationship; its place is therefore somewhat doubtful. 



