122 Orthorrhapha brachycera. 



inteiTupted at tlie hint) margins of the segments of the pale iiairs. 

 Venter cliiefly greyisli liaired, with sliort whitish hairs at the liind 

 margins of the segments. Legs with the femora blacic, the tips yeliow; 

 tibiæ yeliow. apical half of the front tihiæ and the tips of the posterior 

 tibiæ brown ; front tarsi brown. posterior tarsi yeliow. but the tips 

 of tlie joint brownish. Femora and front coxæ with long, whitish, 

 tibiæ with shorter and more blackish hairs; on the outer side of the 

 hind tibiæ no special ciliation. Wings hyaline with pale yeliow veins; 

 anterior branch of the cubital fork with or without a veinlet. Halteres 

 pale brownish. 



Female. Eyes with one band; shorter haired than in the male. 

 Frontal band rather low with almost parallel horders, yellowish grey, 

 quite poUinose or with very small frontal and middle calli. The erect 

 hairs at the upper eye-margin much shorter than in the male. Palpi 

 with the second joint very slightly curved and slightly thickened at 

 the base, clothed with rather long whitish and black hairs. Thorax 

 shorter haired than in the male. Abdomen grey, with some more 

 or less indistinct, reddish markings on the sides of the basal segments. 

 Legs variable in colour, sometimes as in the male, or being paler so 

 that only the base of the femora and the front tarsi with the tips of 

 the tibiæ are darker. 



Length 10—11 mm. 



This species is easily recognised among the Danish species, as it 

 is the smallest of the species with liairy eyes. I have only examined 

 four specimens, of which one had a distinct veinlet on the anterior 

 Ijranch of the cubital fork on one wing and a small one on the other. 

 while the three other specimens had none; but there was always 

 an angle on the vein, where the veinlet should have originated. 



T. plehejus is a very rare species in Denmark, I only know of 

 four specimens, taken many years ago in the vicinity of Cojjenhagen; 

 one of them has been taken by L C. Schiødte. 



Geographical distribution: — Middle Europe. in north to the middle 

 Sweden, in south to France; it is not recorded from Britain. 



7. T. rusticus Fabr. 



1781. Fabr. Spec. Ins. II, 458, 17. — 1842. Zetl. Dipt. Scand. I, 119. 

 21. — 1862. Schin. F. A. 1, 32. — 1880. Brauer. Denkschr. kais. Akad. 

 Wissensch. Wien. XLII, 168. 31, Tab. II el V, Fig. 31. - 1903. Kat. 

 palåarkl. Dipt. II, 70. 



Male. Head large, hemispherical. Eyes liglh greenish, sometimes 

 with a narrow dark band. Eye-facets in somewhat more than the 

 two upper thirds large, except along the hind margin, the dividing 



