Eriozona. 243 



bluish black, shining or a little dull on the disc of fourth segment. 

 Abdomen is thus bluish black with a broad, pale basal band, more 

 or less divided in the middle and incised behind; it is clothed with 

 erect hairs which are long at the basal corners; they are yellow on 

 the second segment and generally also to a higher or lower degree 

 on the fourth, and the apex is yellow-haired, but in dark specimens 

 the dark parts of the second segment and all the fourth except the 

 side margin may be dark-haired. Venter coloured chiefly as the 

 dorsum, with long, pale hairs, more or less black towards the apex. 

 Legs with the femora black with yellow apex ; tibiæ with the basal half 

 yellow, the apical half and the tarsi black. Hind tibiæ slightly thickened 

 about the middle and a little excavated below the thickening on the 

 posterior side, and here slightly curved. Legs haired in the usual way, 

 with somewhat long hairs on posterior side of the anterior femora 

 and on anterior side of the hind femora; tibiæ short-haired. The 

 hairs on femora black but on hind femora more or less yellow, on 

 tibiæ mainly yellow, except on the apical part of hind tibiæ; some- 

 times the hairs on hind femora and tibiæ and on the apical part of 

 anterior tibiæ are more black. Wings hyaline, with a black or blackish 

 blotch from the stigma down over the base of the postical fork. 

 Squamulæ blackish with black and brownish fringes. Halteres brownish 

 black with paler peduncle. Plumulæ brown or blackish. 



Female. Frons broad, yellow pruinose, a little darker along the 

 middle, with yellow hairs, generally dark about the ocelli ; for the rest 

 the female is quite similar to the male; the pale abdominal band 

 never broadly interrupted. 



Length 10—11,6 mm. 



L. lucorum is not rare in Denmark, but generally only present in 

 single or a few specimens; Charlottenlund, Ordrup Mose, Ermelund, 

 Lyngby Mose, Søllerød, Fure Sø, Birkerød, Jægerspris, at Sorø; on 

 Møen ; on Lolland at Maribo, Høvænge, Kærstrup, Bremersvold, Ulriks- 

 dals Skov and Holmeskov at Saxkøbing; in Jutland in Nørholm Skov 

 at Varde, Grejsdal at Vejle, at Horsens and at Rebbild near Skørping, 

 finally on Bornholm in Almindingen and at Rø. The dates are 

 15/5 — 29/^^ !(■ occurs on flowers in fens and on meadows. 



Geographical distribution : — All Europe, towards the north to 

 northern Sweden, and in Finland; it occurs also in North America. 



15. £piozona Schin. 



This genus is nearly allied to Leucozona and thus also to Syrphus. 

 The species is large, densely hairy, of dark colour with only scutellum 



16* 



