133 
This species is very similar to radis but besides by some small 
characters as the frontal bristles and the breadth of frons it will be 
known by the want of the long hairs below the basal half of hind 
femora and the bristly hairs below the apical part; the female may, 
1 think, likewise be recognised by the frontal bristles and short 
hairs below hind femora. 
Holte, Geel Skov, Suserup Skov at Sorø (Th. Mortensen, the 
author) on 29 / 7 — 23 /s in 1917—1920; seven males and one female. 
Mesopleura with uniform bristles. 
Costa long, fringe long. 
3. A. pilifemur n. sp. tf. 
Frons broader than high, black, duli; inner bristle of lower 
row somewhat below the outer and nearer to it than to the upper 
supraantennal; supraantennals unequal, the lower somewhat smaller 
than the upper; the upper supraantennals approximated, a little 
nearer together than the inner bristles of the middle row, the 
lower a little more approximated. Antennæ black, arista distinctly 
pubescent. Palpi yellow. Thorax black, a little shining. Mesopleura 
with uniform bristles. Abdomen black, duil. Hypopygium not large, 
greyish black; it is higher than long, on each side there is a nearly 
vertical row of about four or five weak bristles or bristly hairs, 
the lowermost a little curved; anal tube of medium size, blackish. 
Legs black, the front-legs more brownish; front metatarsus thick- 
ened, as thick as the end of tibia; hind femora with somewhat long 
and rather strong hairs below the middle, but at the base the hairs 
only short and fine; bristles on hind tibiæ distinet but not large. 
Wings somewhat brownish tinged, veins brown; costa rather short, 
about 0 , 4 « — 0,47 of the wing-length, costal divisions about as 11 — 
6 — 4; costal cilia moderately long; third vein a little strong, fourth 
vein distinctly curved in its first part, for the rest nearly straight. 
Halteres black. — Length 1,5 mm. 
Lohals on Langeland °/i and 8 A 1920 (the author), two males. 
4. A. intercostata n. sp. tf. 
Frons broader than high, black and duli, very slightly greyish; 
inner bristle of lower row lower than the outer and nearer to it 
