418 Phoridae. 



hind femora darkened at apex, with sparse, longish hairs below the 

 basal half; bristles on hind tibiæ not quite small, about six or seven 

 on the lower two thirds, the rest smaller. Wings brown, veins strong, 

 brown or dark brown; costa about 0,40 of the wing-length, costal 

 divisions about as 10—5 — 4; costal cilia long; fourth vein a little 

 curved at the origin, for the rest slightly curved. H alteres yellow. 



Female. I have not seen the female, but, according to Wood, 

 it seems fully to agree with the male. 



Length 1,4 mm. 



A. sylvatica seems to be very rare in Denmark, I possess only 

 one specimen, a male, taken in Holte ^Vs 1920 (Th. Mortensen). 



Wood's description of this species is rather short, but I think 

 my determination is correct, as my species, as seen from the descrip- 

 tion, agrees well with Wood's description. I possess another spec- 

 imen, likewise a male, which I took at Hejls south of Kolding V? 

 1919; it is smaller, with paler legs and the wings scarcely as brown, 

 but might, however, no doubt be only a smaller and weaker spec- 

 imen, but the second costal division is relatively a little longer, 

 and the costal cilia longer, so that at present it remains doubtful. 



Geographical distribution: — Hitherto known from Denmark 

 and England. 



154. A. laeta Lundbk. 

 1920. Lundbk. Vidensk. Meddel, fra Dansk naturh. Foren. 71, 29, 34. 



Male. Frons considerably broader than high, greyish, dull; 

 bristles strong, inner bristle of lower row slightly below the outer and 

 slightly nearer to it than to the upper supraantennal ; supraantennal 

 bristles unequal, the lower scarcely half as large as the upper; the 

 upper supraantennals a little more approximate than the inner 

 bristles of middle row, the lower direct below the upper. Antennæ 

 somewhat small, black or brown, arista slightly pubescent. Palpi 

 yellow, of ordinary size and armature. Thorax black with a slight 

 greyish hue; it is almost dull, with brownish pubescence. Mesopleura 

 bare. Abdomen somewhat tapering behind, grey, in some lights 

 bluish grey, dull, with very narrow pale hind margins to the segments, 

 broadest on the sixth segment; the short hairs distinctly visible and 

 slightly longer at the hind margins of the segments. Hypopygium 

 somewhat large and nearly cylindrical, greyish, on the sides it has 

 numerous short hairs; ventral plate small, whitish yellow, triangularly 



