26 Orthorrhapha brachycera. 



mogen uns unsere Kopenhagener Nachbarn dariiber Auskunft geben; 

 fållt diese, wie ich zu glauben Grund håbe, aus, so wird die Art 

 kiinftig den Fabricius'chen Namen wieder erhalten miissen." This 

 was written in 1847 and iirst now, sixty years later, Low's opinion 

 finds its confirmation, and I feel some pleasure in confirming it. In 

 the collection of Lund two specimens are found, no doubt the typical 

 specimens, and they are both identical with flavipes Meig. Tiiis species 

 thus gets the name hyalipennis F., and the species now named so 

 gets again the name gracilis given to it by Meigen. As ah-eady stated 

 by Low gracilis Meig. is moreover a more southern species, and it 

 is not found in Denmark, while hyalipennis F. is common here. D. 

 hyalipennis bears some resemblance to gracilis, but the latter has the 

 hind metatarsi strongly thickened, and also the colour of the hind 

 legs differs somewhat. 



D. hyalipennis is perhaps still more common than rnfipes, and it 

 occurs together with this in the same localities often in great numbers ; 

 Ermelund, Dyrehaven, Lyngby Mose, Geel Skov, Ørholm, Hillerød, 

 Tyvekrogen, Præstevang, Tisvilde; on Funen at Lundeborg on the 

 eastern coast, at Odense, Veflinge, Hofmansgave, Faaborg, Middelfart 

 and on Fænø; in Jutland at Horsens, Frijsenborg, Silkeborg, Funder 

 and Støvring near Randers. My dates are ^^/e— ^»/s; it thus seems to 

 be a less early species than rufipes. Mr. Stamm told rae that he has 

 once taken this species with an Arachnid as prey. The pupa was 

 found in Geel Skov in the earth on ''/c; it developed on ^•''/g. 



Geographical distribution: — Northern and middle Europe down 

 into France and Dalmatia; towards the north to middle Scandinavia. 



6. D. linearis Fabr. 



1787. Fabr. Mantiss. II, 361, 38 {Asilus) et 1794. Ent. syst. IV, 389, 

 60 {Asilus) et 1805. Syst. Antl. 151, 10. — 1847. Low, Linn. entom. II, 

 432,12. — 1862. Schin. F. A. 1,122. - 1903. Kat. palåarkt. Dipt. 11,106. 

 — 1849. D. cingulata Zett. Dipt. Scand. VIII, 2975, 3-4. 



Male. Face whitish pruinose, a small black spot just below the 

 antennæ ; epistomal beard not dense, white. Proboscis and palpi black 

 with yellow hairs. Antennal tubercle moderately prominent; frons 

 and vertex black. Occiput black with the hairs yellow and thinner 

 than in the other species, it is whitish pruinose along the hinder eye- 

 margin w^hen seen in certain directions. Antennæ black, the hairs on 

 the two first joints brown; Iirst joint nearly twice as long as the 

 second, the third not quite as long as the two first together. Thorax 

 black, shining, with slight yellow^ pubescence; three very distinct yellow 

 or bronze coloured stripes on the disc, the middle one very narrow, 



