Reference
Arnaldo Bordoni (2009): New data on Xantholinini from China. XVII. Daolus niger nov.sp.
from Zhejiang (Coleoptera: Staphylinidae, Xantholinini)
205° contribution to the knowledge of the Staphylinidae – Linzer biologische Beiträge – 0041_2: 1867 - 1870.