Pachyiulus apfelbecki was synonymised under P. varius (Fabricius, 1781) by Mauriès et al. (1997).
In light of the study by Frederiksen et al. (2012) we treat P. apfelbecki as a separate species. See also
P. flavipes (C.L. Koch, 1847), P. oenologus (Berlese, 1885) and P. varius.