Empididae. 91 



may be more or less hidden. Legs yellow, tibiæ slightly blackish 

 towards the apex, tarsi blackish; trochanters and apex of the femora 

 with small, black points. Legs short-haired, almost without bristles, 

 only the front tibiæ with a pair of small bristles on the dorsal side, 

 somewhat behind the middle; middle and hind tibiæ with no or a 

 single small bristle; femora with the ordinary small bristles at the 

 apex. The hairs and bristles black or the former brownish. Wings 

 slightly yellowish; veins blackish or brown. Stigma yellowish, Squa- 

 mulæ with long hairs at the margin. Halteres yellow. 



Female. Agreeing with the male; ovipositor blackish, the eighth 

 ventral segment with a small style, often only seen with difficulty. 



Length 5,5 — 7,5 mm., the latter size only reached by females 

 with fully extended abdomen. 



E. univittata is not common in Denmark and has first been taken 

 here in recent time; Ørholm, Tisvilde, on Langeland at Lolials (the 

 author), and on Bornholm at Hasle (FL J. Hansen). The first specimen 

 was taken on Bornholm in 1883 by H. J. Hansen, and then I have 

 taken it on the other localities in 1909 and 1910. My dates are 

 23/g — 13/^^^ j^ seems thus not to occur specially early. It occurs on 

 shaded piaces in woods on low piants e. g. not rarely on Urtica. 



Geographical distribution : — Northern and middle Europe, down 

 into Germany; towards the north to southern Sweden. 



4. E. stercorea L. 



1761. Linn. Fn. Suec. 1899. - 1805. Fabr. Syst. Antl. 141, 21. — 

 1822. Meig. Syst. Beschr. III, 36, 38. — 1842. Zett. Dipt. Scand. 1, 377, 

 10. p.p. — 1862. Schin. F. A. I, 107. — 1867. Loew, Berl. ent. Zeitschr, 

 12 et 19, 1. — 1903. Kat. palaarkt. Dipt. II, 244. 



Male. Eyes broadly separated, frons reddish yellow, with an 

 impressed median line; epistoma and jowls reddish yellow. Occiput 



Fis. 28. Antenna of E. stercorea. X 55. 



of the same colour, with a greyish black spot behind the ocelli, and 

 with black bristles. Labrum ferruginous; palpi yellow, with longish, 

 blackish hairs at the apex. Antennæ longer than the head, black, 

 the first joint elongated, this and the second with short hairs, the 



