244 Phoridae. 



thin veins strong and rather dark; costa reaching beyond the middle, 

 1 longer than 2+3; costal cilia short; fork longish and the angle 

 very acute; fourth vein slightly curved in the whole length. Halteres 

 black. 



Female. Similar, but the antennæ miich smaller; hind femora 

 as in the male with a few longish hairs below the basal part. 



Length 1,8 — 2,5 mm. 



A. jiiscinervis is common in Denmark; Ermelund, Dyrehaven, 

 Egebæks Vang, Holte, Suserup Skov at Sorø, Bogø south of Sealand, 

 at Lohals on Langeland and in Jutland at Hejls south of Kolding, 

 Jelling, Ry, Egense Skov and Hals at Limfjorden and at Sæby; my 

 dates are '^^U — ^Vs; I have taken it in copula on ^^|^\ it was for the 

 first time taken in 1881. 



Geographical distribution: — Besides in Denmark known from 

 England and Holland. 



11. A. prodroma Lundbk. 

 1921. Lundbk. Vidensk. Medd. Dansk naturh. Foren. 72, 131, 1. 



Male. Frons somewhat, but not mucli broader than high, black, 

 dull; inner bristle of lower row a little below the outer and nearer 

 to it than to the upper supraantennal; supraantennals unequal, the 

 lower about half the size of the upper; the upper supraantennals 

 approximate, nearer together than the inner bristles of middle row, 

 the lower close to the upper and direct below them, not nearer together. 

 Antennæ somewhat large, but not as large as in jiiscinervis^ black, 

 arista quité short-pubescent. Palpi brownish, of ordinary size and 

 armature. Thorax black, a little shining, with blackish pubescence. 

 Mesopleura bare. Scutellum with four nearly equal bristles. Abdomen 

 black, dull, the hairs very minute and almost only present at the 

 hind margins of the segments, only at the hind corners of second 

 segment a little more conspicuous ; at the hind margin of sixth segment 

 they are a little longer. Hypopygium somewhat small, greyish black, 

 with numerous, conspicuous hairs on the sides below; anal tube of 

 medium length, but high, blackish; there is a rounded, blackish 

 ventral plate with the margin paler. Legs black, front legs and middle 

 tibiæ more brownish black; hind femora a little dilated, with long, 

 somewhat strong hairs below the basal half; bristles on hind tibiæ 

 of medium size. Wings somewhat brownish or greyish brown tinged, 

 veins brown and the thin veins rather strong; costa short, about 



f 



