Aphiochaeta. 303 



58. A. consimilis Lundbk. 

 1920. Lundbk. Vidensk. Meddel, fra Dansk naturh. Foren. 71, 11, 13. 



Male. Frons somewhat broader than high, greyish black; inner 

 bristle of lower row in or nearly in the same height as the outer, and 

 nearer to it than to the iipper supraantennal, and tlius the bristles 

 of the lower row and the upper supraantennals placed in a nearly 

 straight transverse line; the upper supraantennals about in the same 

 distance from each other as the inner bristles of middle row, the lower 

 a little more approximate and somewhat weaker than the upper. 

 Antennæ of ordinary size or perhaps somewhat small, black, arista 

 distinctly, how^ever, somewhat short-pubescent. Palpi yellow, of ordin- 

 ary size and armature. Thorax black, very slightly shining, with brown 

 pubescence. Mesopleura with small uniform bristles. Abdomen rather 

 tapering, greyish black, dull; the very short hairs visible at the hind 

 margins of the segments, increasing behind, but only slightly longer 

 on sixth segment. Hypopygium dark brownish or greyish brown, 

 small or of medium size, a little higher than long, without bristles, 

 but with small, though distinct hairs on the sides; ventral plate (as 

 far as I could see) blackish; anal tube small, brown. Legs brown or 

 yellowish brown, hind tibiæ as long as the three first tarsal joints; 

 the hairs below hind femora distinct, but not long; bristles on hind 

 tibiæ small and delicate. Wings yellowish or greyish tinged, veins 

 yellow to pale brownish; costa not quite reaching to the middle, about 

 0,48 of the wing-length, costal divisions about as 4 — 2 — 1; costal 

 ciha unusually long; angle at fork somewhat large; fourth vein a little 

 curved at the origin, for the rest evenly curved, somewhat indistinct 

 at the base. Halteres dark, brownish. 



Female. Similar to the male; angle at fork more acute; the 

 halteres a little paler to yellowish. 



Length. 1 — 1,2 mm. 



From superciliata the present species should be distinguished by 

 the longer costa, the hairs on hypopygium and the darker halteres; 

 I must confess, however, that by reexamining and comparing my 

 material I do not feel sure that the species is distinct; according to 

 Schmitz superciliata may sometimes have darkened halteres, and 

 also the costa seems to be rather liable to varying; at present I keep 

 the species, the study of more material will in the future solve the 

 question. 



A. consimilis is rare; Ermelund, Geel Skov, on Langeland at Lo- 



