Dolichopodidae. 139 



females have it with a distinct yellow base, only one specimen has 

 it barely slightly yellow at the extreme base. 



D.sabinus is somewhat rare in Denmark; Amager; on Funen at 

 Hoffmansgave, on Fænø, and on Bornholm. My dates are in July. 

 It occurs on commons and similar piaces, at or near the shore; 

 Stæger took it on Garduus. 



Geographical distribution: — Europe down to the southern Italy; 

 towards the north to southern Sweden. 



40. D. agilis Meig. 



1824. Meig. Syst. Beschr. IV, 97,41. — 1831. Stann. Isis 1831,127, 

 22. — 1862. Schin. F. A. I, 221. — 1903. Kat. palåarkt. Dipt. II, 294. 



Male. Vertex and frons green. Epistoma somewhat broad, white. 

 Palpi yellow. Occiput green, grey pruinose; postocular bristles whitish 

 below, black above. Antennæ somewhat elongated, as long as the 

 head, third joint longer than broad, truncate, the upper corner slightly 

 pointed, the arista inserted somewhat near the base; the antennæ are 

 black, the basal joint yellow below, and also the second joint yel- 

 lowish on the inner side. Thorax dark green or æneous, generally 



Fig. 42. Antenna of D. agilis d, from the inside. X 65. 



with a coppery middle stripe and somewhat coppery at the sides; it 

 is somewhat pruinose, not much shining!; scutellum finely yellow 

 pubescent; postscutellum green, greyish pruinose. Pleura green, grey 

 pruinose; propleura with few, fine, palc hairs and a black prothor- 

 acic bristle. Abdomen green, with coppery reflexes, and with dark 

 or coppery hind margins to the segments; it is somewhat whitish 

 pruinose, especially downwards; it is clothed with short, black hairs, 

 and has hindmarginal bristles, which are not distinctly longer on the 

 first segment. Venter greyish, slightly pale-haired. Hypopygium black, 

 slightly æneous, greyish pruinose; eighth segment with somewhat 

 short, black hairs; there are somewhat projecting, rather narrow 

 posterior ventral lobes, ending with a little hair; also the middle 

 ventral lobes are somewhat projecting; the inner lamellæ curved 

 downwards, the median thin, the lateral dilated, with a dilatation at 



