134 
than to the upper supraantennal; supraantennals not quite equal, 
the lower a little weaker than the upper; the upper supraanten¬ 
nals approximated, nearer together than the inner bristles of the 
middle row and the lower slightly more approximated. Antennæ 
small, brownish black, arista somewhat short-pubescent. Palpi yel- 
low, not broad, the bristles well developed. Thorax black, a little 
shining. Mesopleura with uniform bristles. Abdomen black, duli, 
slightly greyish. Hypopygium small, with numerous hairs, especially 
below on the sides; anal tube yellowish, somewhat high. Legs 
brownish, front legs more yellow; front tarsi thickened, especially 
metatarsus which is as thick as the end of tibia, the other joints 
less thickened but the whole tarsus tapering evenly without any 
marked contrast between metatarsus and second joint; hind femora 
somewhat broad, with sparse long hairs below the basal half; 
bristles on hind tibiæ somewhat numerous but distinet and not 
exaetly small, longest about the middle. Wings brownish, thin veins 
a little strong; costa rather short, about 0,45 of the wing-length, 
cOstal divisions about as 14—5—4; costal cilia moderately long; 
fourth vein evenly curved in the whole length. Halteres black. — 
Length 1,7 mm. 
This species will easily be distinguished in the group, in which 
it must be placed, by the short costa and the proportions of the 
costal divisions, and the same characters will, I think, distinguish 
the female. 
Hejis 2 A 1919 (the author), one male. 
5. A. exclusa n. sp. . 
Frons broader than high, black, a little greyish and duli; inner 
bristle of lower row somewhat below the outer and a little nearer to 
it than to the upper supraantennal; supraantennals somewhat large, 
equal, the upper at about the same distance from each other as the 
inner bristles of the middle row, the lower well below the upper and 
slightly more approximated. Antennæ small, brownish black, arista 
distinetly pubescent. Palpi yellow. Thorax black, slightly shining. 
Mesopleura with uniform bristles. Abdomen black, duli. Hypopygium 
small, in my specimen partly withdrawn but without bristles; anal 
tube short but high, yellow. Legs yellow, hind femora slightly 
darkened at apex; front tarsi distinetly though not mueh thickened; 
