Aphiochaeta. 



309 



base; bristles on hind tibiæ distinct, but relatively small. Wings more 

 or less brownish tinged, veins dark brown to black, thick veins rather 

 strong and also the thin veins somewhat strong, seventh vein nearly 

 as strong as the others; costa reaching well beyond the middle, costal 



Fig. 97. Wing of A. sepulchralis S • 



divisions about 15 — 10 — 4; costal cilia long; angle at fork not small; 

 fourth vein slightly and evenly ciirved at the base, for the rest nearly 

 straight. Halteres black. 



Female. Similar to the male; antennæ smaller; front tarsi a 

 little less stout; hind femora with quite short, somewhat dense hairs 

 below the basal half. 



Lengtli 1,8 to fully 2 mm. 



A. sepulchralis seems to be rare, it has only been taken in Erme- 

 limd and Geel Skov between '^U and Vs in 1919 (not 1915 as stated 

 by an error in the above quotation) to 1921; it was exclusively taken 

 on tree-stubs, especially on fresh, somewhat exsudating stubs of Acer, 

 and in this way Dr. Mortensen took both sexes numerously on ^^4 

 1921; it seems to be exclusively a spring species. 



Geographical distribution: — Hitherto only known from Den- 

 mark. 



Remarks: This species is evidently related to the later described 

 A. Clara Schmitz (Entom. Ber. Nederl. Ent. Ver. V, 1921, 320) from 

 Abisko; the front tarsi seem to be of quite the same shape, but the 

 two species are distinctly different by the characters given in the table. 



64. A. Beckeri Wood. 



1909. Wood, Ent. Month. Mag. 2, XX, 115, 144 {Phom). 

 Bull. Wisc. Nat. Hist. Soc. XII, 113. 



1914. Brues, 



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

 dull ; inner bristle of lower row nearly in the same height as the outer 



