Posted by Johane on 11-11-2025 22:04
#1
Hi,
According to Systema Dipterorum
Rhaphium discolor Zetterstedt, 1838 is a valid species with
Rhaphium consobrinum Zetterstedt, 1843 as a synonym.
But I also find publications where publications where the name
R. consobrinum is used, and
R. discolor listed as a synonym.
Does anyone know which is correct?
Posted by Igor Grichanov on 12-11-2025 09:06
#2
Becker, 1918, placed the two names in synonymy, and the majority of dipterists followed him, with
Rhaphium discolor Zetterstedt, 1838 having a priority. Unfortunately, this species was described by a female, and the Nearctic Catalog (2004) considered this synonymy questionable. Fortunately, nobody wrote that
Rhaphium discolor is an "unrecognized" or "doubtful" species. It is the commonest species of the group (former
Porphyrops) in Scandinavia, and it is better to consider the types of the two names (both are present in the Lund Museum) belonging to the same species -
Rhaphium discolor.
Edited by Igor Grichanov on 12-11-2025 09:11
Posted by Johane on 13-11-2025 01:02
#3
Many thanks for the explanation! The Swedish taxonomy database uses the name
Rhaphium consobrinum Zetterstedt, 1843. If I understand it correctly,
Rhaphium discolor Zetterstedt, 1838, can be added to the list, and
R. consobrinum as a synonym?