446 Addenda et Corrigenda. 



Abdomen black or blackish, with very short hairs. Venter generally 

 more or less yellow. Hypopygiiim mediiim-sized, ventral plate small, 

 yellow. Legs yellow, hind femora slightly darkened at tip, the hairs 

 below not long; bristles on hind tibiæ about as in flava. Wings some- 

 what yellowish, veins yellow, thin veins fme; costa reaching about 

 to the middle, 1 longer than 2, as long or about as long as 2 +3; 

 costal cilia relatively long, nearly midway between short and long; 

 fourth vein evenly curved, a little obliterated at base. Halteres 

 yellow. 



Female. Quite similar to the male. 



Length 1,5 to about 2 mm. 



A. Collini seems to be rare in Denmark, while flava, mixta and 

 rubella are common liere I possess only two females of Collini, Erme- 

 lund ^Vs 1922 and Jelling ^7? 1921 (the author). As 1 have seen only the 

 female the above description of the male is partly taken from Wood. 



Geographical distribution: — Besides from Denmark known from 

 England and Holland. 



Remarks: On pag. 352 I said that I do not know with certainty 

 what Collini is, as I have seen English specimens from Mr. Collin 

 which had long costal cilia and did not answer well to Wood's descrip- 

 tion. The species I have described here is identical with Schmitz' 

 Collini, and is also quite agreeing with Wood's description, so I think, 

 like Schmitz, that it is the true Collini. The species is very similar to 

 flava, mixta and rubella, but distinguished by the characters given in 

 the table; it is thus distinguished from flava and mixta by 1 being 

 longer than 2 and as long or about as long as 2 + 3, from rubella by 

 longer costal cilia, generally darker antennæ, finer thin veins, and 

 minute lower supraantennals, and besides by some more minute 

 characters. 



By adding the above three species to our fauna the total number 

 of Danish Phorids, on page 89 given as 210, thus increases to 213, 

 and the number of Danish species of Aphiochaeta, on page 210 given 

 as 154, is now 157. 



Page 23 Line 29 after "at" add "Lysemose at Maribo". 



— 28 — 19 for "(Albøg)" read "(Albøge)". 



— 43 — 1 for "Lolland" read "Funen" and dele "on Funen". 



— -47 — 26 for "at the sides of fifth" read "at the sides of first". 



— 60 — 10 for "eight" read "eighth". 



— 64 under Fig. 34 for "FF. auctd" red "F. aucta". 



