19 
the frons, the upper pair a little higher than the inner bristles of 
the lower row and they are a little more distant than the inner 
bristles of the middle row; the lower supraantennals more approx- 
imated than the upper and well below them. Antennæ of ordinary 
size, yellow, a little brownish at the end; arista distinctly pube- 
scent. Palpi yellow. Occiput grey above, yellow below. Thorax 
yellow; mesopleura bristly, the bristles black, uniform in size; 
above the metaepimera a black spot. Scutellum with two bristles. 
Abdomen yellow, the posterior margins of the segments broadly 
black, on third to sixth segments also the lateral margins black so 
that these segments may be termed black with a broad triangular 
or more semicircular basal spot. Venter yellow. The hairs at 
the lateral margins of abdomen rather distinet; the hindmarginal 
hairs on sixth segment somewhat longish all round. Hypopygium 
of medium size, higher than long, black or greyish black, without 
bristles or hairs; ventral plate large, nearly square, yellow; anal 
tube of medium size, clear yellow, the apical hairs small. Legs 
pale yellow, tarsi slightly darkened, hind femora with a black spot 
at apex, hind tibiæ darkened towards apex and here with a black 
spot on the inside; front tarsi robust, metatarsus not mueh thinner 
than tibia; hind femora with longish hairs below on the basal 
half; bristles on hind tibiæ strong, also on middle tibiæ the postero- 
dorsal bristles somewhat strong and here besides a row of distinet 
though fine anterodorsal bristles present, going as usual over in 
the dense hairs below. Wings strongly brownish tinged, espeeially 
the anterior margin from costa outwards darkened; veins brown 
and strong; costa reaching well to the middle, costal divisions 
proportionately as 8—6 — 3; fork at angle acute; costal cilia long; 
fourth vein evenly and not mueh curved in the basal part. Hal- 
teres yellow. — Female. In all respects agreeing with the male, 
only the hind femora with shorter hairs below and the black ab- 
dominal bands narrower, espeeially towards the sides. Length 1,8 
—2,4 mm. 
This beautiful and interesting species will be known at once 
as it is the sole yellow species in the group. 
Hejis south of Kolding 23 A — 2 % 1919 (the author); 14 males 
and 4 females. It was taken on leaves of shrubs and with the 
net in low herbage in a wood and also running among the dead 
leaves on the ground. 2 * 
