Aphiochaeta. 



399 



Length 1 — 1,3 mm. 



This species seems, as stated by Wood, really to possess only one 

 pair of developed supraantennal bristles, at all events I have not 

 been able to detect any lower pair. 



A. angelicae is rare in Denmark; Bogø south of Sealand 7? — Vs 

 1917 and in Jutland at Hejls south of Kolding ^^l^ 1919, inEgense 

 Skov at the east end of Limfjorden V? 1921 (the author) and at Frede- 

 rikshavn in Jiily 1881 (H. J. Hansen); in all 8 males and 4 females. 



Geographical distribution: — Hitherto only known from Den- 

 ^ mark and England. 



137. A. tarsalis Wood. 



1910. Wood, Ent. Month. Mag. 2, XXI, 243, 246 {Phora). — 1914. Brues, 

 Bull. Wisc. Nat. Hist. Soc. XII, 134. 



Male. Frons slightly broader than high, black, shining; inner 

 bristle of lower row somewhat below the outer, nearer the eye-margin 

 than the middle line; supraantennal bristles unequal, the lower some- 

 what smaller than the upper; the upper supraantennals about as 

 distant as the inner bristles of middle row, the lower slightly more 

 approximate. Antennæ somewhat small, blackish brown, arista 

 distinctly pubescent. Palpi yellow, of ordinary size, the bristles well 



^--^^^^r^^j^^— 



Fig. 117. Wing of A. tarsalis ?. 



developed. Thorax black, very slightly shining, with dark brownish 

 pubescence. Abdomen black, dull, the very short hairs a little more 

 visible at the hind margins of the segments. Hypopygium small, 

 greyish black, with short hairs on the sides; ventral plate narrow, 

 but somewhat long, yellowish; anal tube yellow, short, but some- 

 what high. Legs yellowish or yellowish brown, the front legs the palest; 

 front tarsi distinctly thickened; the hairs below the basal half of 

 hind femora distinct, but only slightly longish; bristles on hind tibiæ 

 distinct and not short, but fme. Wings a little yellowish, veins yellowish 

 brown or brown; costa 0,42 — 0,44 of the wing-length, its outer part 



