Cerioides. 591 



spot on the præalar calli; this is in accordance witii Zetlerstedt's de- 

 scription; I have seen specimens from Italy which are quite conform 

 with Schiner's description, and they have also much paler legs; the 

 northern specimens thus seem to be darker. Loew (1. c.) mentions 

 these variations. 



C. conopsoides is very rare in Denmark, we have only two speci- 

 mens from earlier time without any particular locality, but I have no 

 sufficient reason to doubt that they have been taken in Denmark; 

 also the species is recorded by O. F. Muller, but it is to be remarked 

 that I think it very probable that his species has been some Conops. 



Geographical distribution : — Europe down into Italy and Algeria ; 

 towards the north to middle Sv^eden, and in Finland. 



