Empididae. 



299 



quite or nearly quite brown or black. Front femora slightly, middle 

 femora somewhat tliickened. The legs are yellowish halred. Wings 

 pale yellowish; the veins likewise pale yellow, the cubital and discai 



Fig. 135. Wing of T. hicolor. 



vein almost parallel or often somewhat convergent. Halteres yellowish 

 white. 



Female. Quite similar to the male except the pointed abdomen. 



Length 2,5 to about 3 mm. 



This species is generally characterised by the parallel cubital and 

 discai vein, but these veins are often somewhat convergent, as also 

 Strobl States. The species is not easily distinguished from pallidiventris 

 (see below under this species). 



T. hicolor is common in Denmark; Ermelund, Ørholm, Tisvilde, 

 Nordskoven at Jægerspris ; in Jutland at Aalborg; ray dates are ^^^/r. — ^Vt. 

 It occurs on bushes at the outskirts of woods and in low herbage 

 on fields, I think most commonly on the latter piaces. 



Geographical distribution: — Europe down into Italy, and also 

 down into North Africa; towards the north to middle Sweden, and 

 in Finland. 



9. T. calceata Meig. 



1822. Meig. Syst. Beschr. III, 87, 45. — 1842. Zett. Dipt. Scand. I, 

 282,12. — 1862. Schin. F. A. I, 88 {Platypalpus) . — 1003. Kat. palåarkt. 

 Dipt. II, 281. 



Of this species I only know the female. Vertex and frons light 

 grey; epistoma white; palpi not large, white haired. Occiput light 

 grey with yellow bristles above, white hairs below. Antennæ black 

 or brown, the basal joints yellow, the third joint short, considerably 

 shorter than the arista and not much longer than broad. Thorax 

 not densely light grey pruinose, a little shining; all bristles pale or 

 whitish yellow. Scutellum with two pale marginal bristles, and a 



