382 Phoridae. 



short hairs on the anterodorsal side more conspicuous than usual 

 so that this side is densely clothed with short, somewhat erect hairs. 

 Wings yellowish or yellowish brown, veins brown or pale brown; 

 costa reaching to the middle or aboiit, 1 aboiit equal to 2 + 3; costal 

 cilia long, but not specially long; angle at fork large and approaching 

 a right angle; fourth vein evenly curved in the whole length. Halteres 

 yellow. 



Female. Wood was not sure as to the female; I possess a female, 

 which may possibly belong here; it is quite similar to the male in all 

 respects, but the angle at fork is considerably more acute. 



Length 1,5 mm or fully. 



A. nudiventris is a rare species, I have taken only five males; 

 Lyngby Mose "/e 1918, Geel Skov "Vs and "Vs 1918 and in Jutland 

 at Jelling ^^l-j and ^^'/t 1921; the questiohable female I took in Erme- 

 lund '76 1919. 



Geographical distribution: — Hitherto only known from Den- 

 mark and England. 



124. A. similata Lundbk. 



1921. Lundbk. Vidensk. Meddel, fra Dansk naturt. Foren. 72, 140, 13. 



Male. Frons broader than high, black, a little greyish, dull; 

 inner bristle of lower row slightly below the outer and nearer to it 

 than to the upper supraantennal ; supraantennal bristles unequal, 

 the lower about half the size of the upper or somewhat more; the 

 upper supraantennals approximate, nearer together than the inner 

 bristles of middle row, the lower only slightly more approximate. 

 Antennæ somewhat small, brownish, arista long, distinctly pubescent. 

 Palpi yellow, of ordinary size, but not broad, the bristles rather long. 

 Thorax black, very slightly shining, with blackish brown pubescence, 

 Pleura more or less brownish, anteriorly stretching up on the humeri. 

 Mesopleura bare. Abdomen black, dull; the short hairs a little longer 

 at the hind margins of the segments and at the sides, especially at 

 the sides on the hind margin of sixth segment. Hypopygium large, 

 as long and broad as the sixth segment, cylindrical ; on the sides and 

 at the hind margin it is clothed with longish hairs, longest below, 

 but there are no bristles ; below there is a large and square, yellowish 

 ventral plate with the end rounded and stretching about to the end 

 of hypopygium; anal tube of medium size, yellow, with quite small 

 apical hairs. Legs yellow, hind femora somewhat darkened towards 



