392 Phoridae. 



A. lactipennis is rare, it has only been taken at Ry in Jutland 

 ^V? and ^V? 1918 (the author), in all three males; they were taken 

 with the net in grass. 



Geographical distribution: — Hitherto only known from Den- 

 mark, 



131. A. gregaria Wood. 



1910. Wood, Ent. Month. Mag. 2, XXI, 152, 199 [Pliora). — 1914. Brues, 

 Bull. Wisc. Nat. Hist. Soc. XII, 120. — 1919. Schmitz, Entom. Ber. Nederl. 

 Ent. Ver. V, 142. 



Male. Frons somewhat high, not much broader than high, 

 greyish black; it is distinctly pubescent and hence looks as conspicuous- 

 ly black punctate; the middle row of bristles is placed rather high 

 and the same is the case with the outer bristles of lower row, the inner 

 bristle of lower row is, therefore, much below the outer, and it is 

 nearer the eye-margin than the upper supraantennal ; supraantennal 

 bristles equal or nearly so, the upper distant, more distant than the 

 inner bristles of middle row, the lower more approximate. Antennæ 

 somewhat small, brownish black, arista short, somewhat thick, 

 short-pubescent. Palpi yellow, of ordinary size and armature. Thorax 

 black, somewhat shining, with brownish pubescence. Mesopleura 

 bare. Abdomen black, dull, the short hairs only visible at the hind 

 margins of the segments and increasing in length behind. Hypopy- 

 gium small, greyish black, with a number of bristly hairs on each 

 side; anal tube small, yellowish. Legs yellowish brown, hind femora 

 somewhat darkened at the end, with sparse, long hairs below the basal 

 half; bristles on hind tibiæ distinct, but fine. Wings a little yellowish 

 tinged, veins yellowish brown to darker brown; costa about 0,36 

 of the wing-length, costal divisions about as 15 — 5 — 4; fork small; 

 costal cilia moderately short; fourth vein very slightly curved, a little 

 recurved at apex. Halteres black. 



Female. The female was hitherto not known; it is in all respects 

 similar to the male; hind femora likewise with long hairs below. 



Length. About 1 mm. 



Wood says "1 more than double 2 + 3", but a measurement 

 gives the lengths I have given above. 



A. gregaria seems to be rare in Denmark; Holte ^V? and ^V? 

 1918 and ^Vio 1921, Suserup Skov at Sorø "7? 1918 (Th. Morten- 

 sen); in all two males and two females. 



