i 



Aphiochaeta. 339 



Male. Frons not broad, scarcely iVs as broad as high, greyish 

 black, with a slight indication of a gloss; inner bristle of lower row 

 slightly below the oiiter and about in the middle between it and the 

 upper supraantennal ; siipraantennal bristles equal, the upper distant, 

 in about the same distance from each other as the inner bristles of 

 middle row or perhaps a little more distant, but as the inner bristles 

 of middle row are rather distant, the same is the case with the upper 

 supraantennals ; the lower supraantennals considerably more approxi- 

 mate. Antennæ of ordinary size, black, arista distinctly pubescent. 

 Palpi not small, yellow, slightly dnsky, with ordinary bristles. Thorax 

 black, a little shining, with dark brownish pubescence. Mesopleura 

 bare. Abdomen somewhat robust, deep black, dull; the short hairs 

 only visible on the two last segments. Hypopygium small, a little 

 greyish, only with hairs on the sides; anal tube small and short, 

 yellowish, somewhat dusky. Legs paie brownish or brownish yellow, 

 the front legs the palest; the hairs below the basal half of hind femora 

 longish; bristles on hind tibiæ somewhat small, but distinct. Wings 

 somewhat brownish or greyish fumigated, veins dark brown, nearly 

 blackish; costa reaching near to the middle of the wing, 0,48 of the 

 wing-length, costal divisions about as 11 — 6 — 4; costal cilia short, 

 but not specially short; fork longish, the angle not small; fourth vein 

 evenly curved. Halteres black. 



Female. Unknown. 



Length. About 1,5 mm. 



A. fumicolor seems to be very rare, Ermelund ^Ve 1919 (the 

 author), one male. 



Geographical distribution: — Hitherto only known from Den- 

 mark. 



90. A. parva Wood. 



1909. Wood, Ent. Month. Mag. 2, XX, 27, 62 (Phora). — 1914. Brues, 

 BuU. Wisc. Nat. Hist. Soc. XII, 126. — 1919. Schmitz, Jaarb. Natuurh. Ge- 

 nootsch. Limburg 1918, 159. 



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

 bristle of lower row below the outer and nearer to it than to the upper 

 supraantennal; supraantennal bristles unequal, the lower about half 

 as large as the upper, or sometimes a little larger; the upper supra- 

 antennals less distant than the inner bristles of middle row, the lower 

 quite approximate. Antennæ somewhat small, black, arista distinctly 



22* 



