Empididae. 291 



Antennæ black, the third joint short, somewhat longer than broad at 

 the base, ^ much shorter than the arista. Thorax brownish yellow 

 pruinose; all bristles yellow; two distinct long dorsocentral bristles 



Fig. 132. Antenna of T. flavipes. X 100. 



behind. Scutellum with two marginal bristles and a smaller hair on 

 each side, all yellow. Pleura grey pruinose, anteriorly a little yel- 

 lowish; above the middle coxæ a black, polished spot. Abdomen 

 black, shining, either quite black or the anterior segments with greyish 

 front margins at the sides. Il is clothed with short, yellowish hairs. 

 Venter black. Legs together with the coxæ dark yellow or reddish 

 yellow; the apex of the tarsal joints black, and the tarsi thus black 

 annulated; sometirnes the femora may be more or less brownish 

 above. Front femora somewhat, middle femora much thickened. The 

 legs are yellowish haired, the front tibiæ have some small, -darker or 

 paler bristles on the dorsal side; the hairs below the hind femora a 

 little strong. Wings a little yellowish, Veins yellow at the base, pale 

 brownish to blackish brown outwards. Halteres yellow. 



Female. Similar to the male except the pointed abdomen. 



Length 2,5 — 3,5 mm. 



T. flavipes is a common species in Denmark; Utterslev Mose, 

 Ordrup Mose, Ermelund, Dyrehaven, Ørholm, Tisvilde, Frederikssund; 

 on Langeland at Lohals; in Jutland in Greisdalen at Vejle, at Gjerlev 

 near Randers Fjord, Hald near Viborg, Thisted, Sæby, Lønstrup and 

 Frederikshavn, and on Læsø; fmally on Bornholm at Allinge; my 

 dates are ^^/g — ^^/s. It occurs on bushes and in low herbage both in 

 woods and outside, on fields and meadows. 



Geographical distribution: — Europe down into Italy; towards 

 the north to northern Sweden, and in Finland. 



2. T. maculipes Meig. 



1822. Meig. Syst. Beschr. III, 79, 27. - 1842. Zett. Dipt. Scand. 1, 

 274, 2. — 1862. Schin. F. A. 1, 87 [Platy palpus). — 1903. Kat. palåarkt. 

 Dipt. II. 285. 



^ I have given the comparisons of the length and breadth of the third antennal 

 joint in this and the following species, such as they are generally seen with a 

 lens; exact measurements under the microscope will show the joint relatively 

 longer, but with a lens the outer, thin pari of the joint wili show itself as the 

 basal part of the arista. 



19* 



