Aphiochaeta. 317 



about 0,47 of the wing-length, costal divisions aboiit as 4 — 2 — 1; 

 costal cilia long, almost very long; fourth vein a little curved at the 

 origin, for the rest very slightly curved. Halteres yellow. 



Female. Quite similar to the male, 



Length. Fully 1 mm. 



A. angiistipennis is rather rare, in all eight specimens, five males 

 and three females, have been taken; Holte (Th. Mortensen), on Lange- 

 land at Lohals and in Jutland at Hejls south of Kolding and Ry 

 (the aiithor); the dates are ^Ve — ^^9 in 1918 to 1920; one specimen 

 was taken in grass with the net. — I possess further some specimens 

 which are a little larger and the wings seem to be broader, but at 

 present I dåre not decide whether they constitute a separate species. 



Remarks: This species is near subpleuralis, but it is smaller, 

 with smaller bristles on hind tibiæ and no sudden deflection of the 

 dorsal hair-seam; it is also and to a high degree, similar to consimilis 

 from which I fmd it distinguished only by the yellow halteres and 

 the want of distinctly visible hairs on hypopygium; from superciliata 

 it should be distinguished by the longer costa and the perhaps more 

 distinct hind tibial bristles. Under consimilis I expressed some doubts 

 with regard to this species being different from superciliata and I 

 cannot but say the same here; it is perhaps possible that consimilis, 

 angustipennis and superciliata might be one species, varying with 

 regard to the colour of the halteres and the length of the costa. 



Geographical distribution : — Only known from Denmark (if 

 distinct). 



71. A. Woodi n. sp. 



Phora sordida Beck. (nec Zett.) 1901. Abhandl. zool. bot. Gesell. Wien, 

 I, 60, 53, Taf. III, Fig. 56. — 1906. Malloch, Ent. Montli. Mag. 2, XVII, 276. — 

 1909. Wood. Ent. Month. Mag. 2, XX, 117, 145. 



Male. Frons broad, nearly twice as broad as high, greyish black, 

 dull; inner bristle of lower row slightly below the outer and much 

 nearer to it than to the upper supraantennal ; supraantennal bristles 

 unequal, the upper large, the lower somewhat smaller; the upper 

 supraantennals less distant than the inner bristles of middle row, 

 the lower slightly more approximate. Antennæ somewhat large, 

 black, arista short-pubescent. Palpi yellow or somewhat dusky, well 

 developed, with ordinary bristles. Thorax black, somewhat greyish 

 and slightly shining, with blackish brown pubescence. Mesopleura 

 with equal bristles. Abdomen black, distinctly greyish, dull; it has 



