Empididae. 303 



13. T. cursitans Fabr. 



1781. Fabr. Spec. Ins. II, 447, 60 {Mtisca). — 1805. Fabr. Syst. Antl. 

 143, 3. — 1842. Zett. Dipt. Scand. I, 280, 10. - 1862. Schin. F. A. 1, 

 88 {Plati/palpus). — 1903. Kat. palåarkt. Dipt. II, 282. 



Male. Vertex and frons grey; epistoma somewhat broad, white 

 haired; palpi yellow, somewhat large, fully half as long as the pro- 

 boscis, Occiput grey, with whitish bristles above, white hairs below. 

 Antennæ black or brown, the basal joints and generally also the base 

 of the third joint yellow, the third joint somewhat elongated, but not 

 as long as the arista. Thorax yellowish grey pruinose, with two 

 approximated darker grey stripes in the middle, abbreviated behind; 

 there are three distinct notopleural bristles; all bristles yellow. Scutel- 

 lum has generally six yellow marginal bristles, of which the inner 

 and outer pair are short, the intermediate pair long. Pleura light 

 grey pruinose; above the middle coxæ a black, polished spot. Ab- 

 domen black, shining; at the sides with grey bands, which are some- 

 what large on the first two segments, small on the others; it is 

 clothed with short, yellowish white hairs. Venter black. The exterior 

 genitalia somewhat small. Legs yellow, tarsi brownish to blackish 

 annulated, sometimes indistinctly, and the tarsi almost quite yellow. 

 Front femora only slightly, middle 

 femora somewhat -more thickened. 

 The legs are short-haired with yellow 

 hairs. Wings somewhat yellowish 

 tinged. Veins brownish, yellow to- 

 wards the base; the cubital and 

 discai vein somewhat convergent, 

 both being curved towards each other. Fig. 137. Wing-part of T. cursitans. 

 Halteres white or yellowish white, 



Female. Quite similar to the male; abdomen pointed. 



Length 3,5 — 4,3 mm. 



T. cursitans is not precisely common in Denmark; Ermelund, 

 Ordrup, Nyraad at Vordingborg, on Egholm at Skelskør, and on 

 Langeland at Lohals; my dates are ^^lo—^h. It occurs on bushes at 

 the outskirts of woods. 



Geographical distribution :— Europe dow^n into Spain {var.hispanica 

 Strobl) and Italy; towards the north to southern Sweden, and here 

 rare; and in Finland. 



14. T. candicans Fall. 



1815. Fall. Dipt. Suec. Empid. 10, 11. — 1822. Meig. Syst. Beschr. 

 III, 85, 42. — 1842. Zett. Dipt. Scand. I, 285, 17, (var. a et b). — 1862. 



