Platypeza. 37 



with longish hairs anteroventrally; hind femora with longish hairs 

 on anterior side; middle tibiæ with only one apical spiir. Wings 

 pellucid, third costal segment yellowish; veins blackish; medial 

 cross-vein well before apex of mediastinal vein; lower branch of 

 discai fork incomplete; posterior cross-vein shorter than its distance 

 from the fork; anal cell long, double as long as the rest of anal vein. 

 Squamulæ brown. H alteres black. 



Female. Rather different. Frons and face whitish grey; frons 

 broad with few, quite minute hairs. Occiput whitish grey, with some 

 pale hairs below; postocular bristles strong but not long. Jowls with 

 only a few hairs just behind. Thorax and scutellum briglit grey, 

 the thoracic disc with three broad black stripes, confluent in front 

 but separated backwards and thus forming a large, posteriorly 

 tridentate spot not reaching hind margin; the middle stripe pro- 

 duced quite forwards but the lateral not; dorsocentral hairs a little 

 pluriserial, quite short, only the hindmost longer; also all otlier hairs 

 short, only notopleural bristles long, three in number. Abdomen 

 whitish grey, first segment black anteriorly in the middle, second 

 quite black, third with a triangular black spot, united with second 

 segment and more or less extended, so that the segment may be 

 black with only grey lateral spots, fourth and fifth segment with 

 narrow black front bands, sixth black with a greyish hind margin; 

 abdomen may thus be termed black with two broad whitish grey 

 bands and a larger or smaller whitish grey side spot anterior to 

 them. The hairs are few and short, somewhat strong, only long on 

 the sides at base and here white; below apex some yellow bristles. 

 Legs paler than in male, brownish, somewhat greyish pruinose, 

 knees and tarsi yellowish, the latter darkened towards end. Hind 

 tarsi strongly dilated, more than in male, the two first joints short, 

 the second the shortest and quite short below, third about as long as 

 the two first together and very long below, and fourth comparatively 

 much dilated; middle tarsi with the three middle joints a little dilated, 

 the second short. Legs mainly short-haired, the hairs partly pale. 

 The lower branch of the discai fork nearly or quite complete. 



Length fully 3 to 3,7 mm. 



P. injumata is somewhat rare in Denmark; Geel Skov, Tisvilde, on 

 Langeland at Lohals, on Lolland at Nysted and in Jutland at Jelling 

 and Ry (the author); the dates are ^j^ — ^g. Verrall records it in 

 England from ^s/^ — 2^^^. 



Geographical distribution: — Northern and middle Europe 



