Xanthopygus grimmeri Duvivier, 1883 nomen dubium

Staphylinus haemorrhoidalis Grimmer, 1841: 32; nomen dubium, preoccupied (Herman 2001)

Xanthopygus grimmeri Duvivier, 1883: 153 (replacement name for Staphylinus haemorrhoidalis Grimmer).

No species could be located in Graz, Austria (where the Grimmer collection is located) that matched any on the names above (Hausl-Hofstätter personal communication). The species was originally described from Austria and if it exists, it probably refers to a non-xanthopygine species since no Xanthopygina taxa are known from the Palearctic.