78 



Orthorihapha brachycera. 



short and thick, longish ciliated on the antero-dorsal side with sonie- 

 what scaly hairs; hind metatarsi somewiiat thickened, densely iiairy 

 on the dorsal side. Wings slightly yellowish tinged, sometimes slightly 



Fig. 22. Wing of Bh. gihha. 



brownish in the middle at the anterior margin. Veins darker than 

 in the male. Stigma a httle more distinct. 



Length 2,5 mm. 



This small, thick-set, black shining species is at once recognised 

 by its whole exterior from any other species of Rhamphomtjia. 



Rh.gibha is rare in Denmark; Ordrup Mose (Stæger), Geel Skov 

 (the author) ; in Jutland in Vejle Nørreskov (the author) and at Laven 

 near Silkeborg (H. J, Hansen); the dates are ^Vt — "•/o, the species thus 

 being an autumn species, It occurs in fens and in low herbage in 

 woods, and it has been taken on flowers of Umbelliferæ, 



Geographical distribution : — Northern and middle Europe down 

 into Styria; towards the north to middle Sweden. 



Rh. cana Zett. 

 In 1849, in Dipt. Scand. VIII, 3043, 50—51 Zetterstedt establishes 

 a species, Rh. cana, which is again mentioned in XI, 4272, 50 — 51 ; 

 about it is said: „Hab. in Dania, D. Stæger, qui specimen pro describendo 

 mutuo communicavit 1848." It should thus belong to our fauna. Only 

 the male is known, and there seems to have been only one specimen. 

 We do not have the species in our coUection, and I then wrote to Dr. 

 Bengtsson, the director of the museum in Lund, where Zetterstedt's 

 coUection is. He kindly communicated me, that the species was not 

 to be found. It is thus lost, and I think it doubtful whether it will 

 ever be recognised. I shall not reprint here Zetterstedt's description 

 to which I refer. The species is said to be similar to obscura, but 

 of a lighter colour, and to coracina, but smaller. Thorax light grey, 

 without stripes. Abdomen grey, slightly hairy, with „ano hiante, 

 filato". The wings are whitish hyaline, the anal vein does not reach 



