310 Phoridae. 



and much nearer to it than to the upper supraantennal ; supraantennal 

 bristles nearly equal, the upper as distant as the inner bristles of middle 

 row or nearly so, the lower a little more approximate. Antennæ some- 

 what large, black, arista distinctly pubescent. Palpi yellow, well 

 developed, with somewhat long bristles. Thorax black, somewhat 

 greyish and nearly dull, with blackish brown pubescence. Mesopleura 

 with distinct and uniform bristles. Abdomen black, somewhat greyish, 

 dull; there are short and sparse, but distinct hairs on the hind parts 

 of the segments, a little longer at the hind margins, increasing in 

 length behind ; at the hind margin of sixth segment the hairs are long 

 and conspicuous. Hypopygium somewhat large, higher than long, 

 greyish black, and shining at base above; there is a vertical series of 

 bristly hairs on each side below at the base and two more above and 

 backwards; below there is a short, dusky ventral plate; anal tube 

 short, but rather high, dusky yellowish. Legs pale brown to blackish 

 brown, the front legs paler to yellowish; hind femora somewhat broad, 

 the hairs below the basal part not long, but strong, very dense at the 

 base and here forming a distinct brush; about the middle there are 

 some longish hairs; bristles on hind tibiæ strong and not numerous. 

 Wings brownish tinged, veins brown; costa reaching beyond the middle, 

 1 about equal to 2 and shorter than 2 + 3; costal cilia rather long; 

 fork longish and angle acute; fourth vein a little S-like at base, with 

 a distinct, but not large curve in its first part, for the rest nearly 

 straight. Halteres black. 



Female. Similar to the male; antennæ smaller; hairs below hind 

 femora short, but distinct, shortest and a little dense at base. 



Length 2 — -2,5 mm (according to Wood 2,5 — -3 mm). 



A. Beckeri is very rare in Denmark, only two specimens have 

 been taken, a male at Nebsager south of Horsens in July 1883 (H. J. 

 Hansen) and a female at Hejls south of Kolding ^V? 1919 (the author). 



Geographical distribution: — Denmark, England, and, according 

 to a specimen from Pater Schmitz, Holland. 



65. A. altifrons Wood. 



1909. Wood, Ent. Month. Mag. 2, XX, 117, 146 {Phora). — 1914. Brues, 

 Bull. Wisc. Nat. Hist. Soc. XII, 112. 



Male. Frons high, about quadratic, but a little varying, black 

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

 and about equally distant from it and from the upper supraantennal; 



