274 Phoridae. 



nearly reaching beyond the hypopygium, broadest at the end and 

 here broadly rounded; anal tube of medium size, yellow. Legs brown- 

 ish yellow or a little darker; hind femora below the base with two 



short rows alongside of somewhat stubby 



bristles, the bristles of the anterior row 



directed downwards, those of the posterior 



row directed more obliquely towards the 



apex (fig. 88); hind tibial bristles distinct, 



but rather small, the dorsal hair-seam 



Fig. 88. A. basispinata S, deflecting anteriorly in the lower half. 



hind femur from the inside Wings clear or nearly so, veins brown or 



v 55 



■ yellowish brown; costa reaching to near 



the middle (0,47), costal divisions about as 11 — 7 — 3 (not 2 as in 

 my first description) ; costal cilia long; angle at fork of medium size; 

 fourth vein evenly curved. Halteres yellow, (in one specimen balteres 

 darkened and at the same time the anal tube being brown with 

 only apex yellow). 



Female, Unknown. 



Length, About 1,7 mm. 



The armature of the hind femora is somewhat similar to that in 

 Beckeri, but this species has the mesopleural bristles quite uniform 

 and black halteres. 



A. basispinata does not seem to be common; Copenhagen, on a 

 window, Holte, Hillerød, and in Jutland at Esbjerg, Ry and Løkken 

 (Th. Mortensen, the author); the dates are ^Ve— ^V? in 1917 to 1921. 



Geographical distribution: — Hitherto only known from Den- 

 mark. 



34. A. insons Lundbk. 

 1920. Lundbk. Vidensk. Meddel, fra Dansk naturh. Foren. 71, 5. 



Male. Frons about IV2 times broader than high, grey, dull; 

 inner bristle of lower row somewhat below the outer and in nearly 

 the same distance from it as from the upper supraantennal; supra- 

 antennal bristles not large, approximate, the lower rather close to 

 the upper and a little smaller. Antennæ black, of ordinary size, arista 

 distinctly pubescent. Palpi yellow, ordinary. Thorax black, very 

 slightly or almost not shining, with brownish pubescence. Meso- 

 pleura bristly, with two (in the single specimen) a little larger bristles 

 below. Abdomen black, dull, the very short hairs almost only visible 



i 



