32 Platypezidae. 



pleural bristles. Pleura black. Abdomen rather flattened, velvet 

 black, sometimes with quite narrow paler hind margins to the seg- 

 ments; it has long black hairs at the sides and black bristles at apex 

 of sixth segment. The hairs on thorax and abdomen may show a 

 rusty shine. Genitaha black, a little greyish. Hypopygium small 

 with elongated end claws, and below there is a strong ventral process, 

 cleft in apical half and reaching to the end of the claws. Legs black, 

 hind tibiæ and tarsi somewhat moderately dilated, metatarsus the 

 most dilated, as long as second joint, third joint longer, fourth and 

 fifth joint not dilated. Anterior femora have unusually long black 

 hairs on posterior side, hind femora a short fringe below. Wings 

 colourless or a little yellowish, third costal segment rather yellow, 

 and it is comparatively short, about as long as second segment; 

 veins black; medial cross-vein about below middle of mediastinal 

 vein; lower branch of fork short, incomplete; anal cell shorter than 

 the rest of anal vein. Squamulæ blackish. Halteres black. 



Female. Rather similar. Frons broad, blackish brown, with a 

 few hairs at the sides and in front ; face and cheeks with fewer hairs 

 than in male. Thorax blackish brown, with indication of two approxi- 

 mated stripes in front; dorsocentral hairs much shorter than in male, 

 and also the bristles on the sides of the disc much shorter. Abdomen 

 velvet black with sparse, short black or brownish shining hairs; 

 below on sixth segment some bristles, but not above. Legs brown 

 or blackish brown; hind tibiæ and tarsi more dilated than in male, 

 second joint much shortened below, thus third joint here long; also 

 fourth joint dilated; the legs rather sparingly and all short-haired. 

 Wings colourless. 



Length 3 — 3,5 mm. 



P. atra is not rare in Denmark; Frederiksberg Have at Copen- 

 hagen, Ordrup (Stæger), Egebæks Vang (the author), on Lolland at 

 Maribo (SchHck) and in Jutland at Hejls, Jelling, Hov and Ry (the 

 author); the dates are 2/7 — 2^/7; Verrall records it in England from 

 "/s to 7io- It is generally seen running on leaves. 



Geographical distribution: — Northern and middle Europe down 

 into France and Italy; towards the north to southern Sweden, and 

 in Finland. 



4. P. fasciata Meig. 



1804. Moig. Klass. eur. zweifl. Ins. I, 310, 1, Tab. XV, Fig. 7—11 et 

 1824. Syst. Beschr. IV, 6, 2. — 1809. Panz. Fn. Germ. CIII, 20. — 1805. 



