Empididae. 73 



Præstevang and Tyvekrogen at Hillerød, Boserup near Roskilde; on 

 Funen at Odense; on Langeland at Lohals and on Bornholm at 

 Rønne, Hasle, Rø and Almindingen; on the other hånd it has hitherto 

 not been taken in Jutland, which is however probably only accidental. 

 It is seen during most part of the summer, my dates are '-^le — ^/s. It 

 occurs in thickets, in fens and on humid piaces, and in low herbage 

 in woods on shaded localities; it is here seen hovering in the air 

 over the piants with the hind legs pendulous. When alive it has 

 bright red eyes. 



Geographical distribution: — Northern and middle Europe down 

 into Styria; towards the north to Lapland, but here it seems rare; 

 and in Finland. 



Remarks: Meigen (Syst. Beschr. III, 54) cites nigripennis Fall. 

 under his umbripennis, but says, that the name cannot be kept, as 

 the species is not Tachydromia nigripennis Fabr., and in VII, 334, 7 

 he enumerates Fabricius' species as Ocydromia nigripennis, but this 

 is erroneous. Fabricius says: „Habitat in Daniæ floribus Mus. Dom. 

 Lund." In the collection of Tønder-Lund there are two specimens 

 present under the name of nigripennis, and both belong to the pre- 

 sent species which must thus have the name nigripennis Fabr., and 

 Fallen was quite right in his interpretation. Now the species is 

 not umbripennis Meig., but certainly his obscuripennis and identical 

 with var. b. obscuripennis Strobl. Meigen says, that the anal vein 

 reaches the hind margin, but I think Strobl is right in supposing, 

 that Meigen has been misled by the shade stretching from the anal 

 vein. I think it also certain, that Zetterstedt's nigripennis is the pre- 

 sent species, as also suggested by Strobl. 



20. Rh. umbripennis Meig. 



182!2. Meig. Syst. Beschr. III, 54, 25. — 1862. Schin. F. A. I, lOL 

 — 1893. Strobl, Mittheil. Ver. Steierm. 1892, 59, (var. a. umbripennis). — 

 1903. Kat palåarkt. Dipt. Il, 231, (excl. synon. sub. nigripennis). 



Male. Eyes contiguous, the small frontal triangle black; epistoma 

 black. Occiput greyish black, slightly shining, with black hairs. 

 Labrum as long as or a little longer than the head is high; palpi 

 black, slightly blackish haired. Antennæ as long as the head, black, 

 the two first joints with a few short hairs, the third joint elongated, 

 attenuated towards the apex. Thorax strongly arched, deep velvet 

 black, not or only slightly shining in front and not at all at the sides. 

 The dorsocentral bristles somewhat long, black, uniserial; no acrosti- 

 chal bristles, A humeral bristle, a posthumeral, a pair of notopleural, 

 a supraalar and a postalar bristle present, all black. Scutellum has 



