Syndicus difficilis, Taxa Only, Exact Match: 2 Treatments

Syndicus (Syndicus) difficilis			Yin, Zi-Wei & Zhou, De-Yao, 2016, New Species, New Synonymy, and Additional Records ofSyndicusMotschulsky (Coleoptera: Staphylinidae: Scydmaeninae), The Coleopterists Bulletin 70 (4), pp. 871-879 : 871-879	871-879
Syndicus difficilis			Jałoszyński, Paweł, 2014, Two new species and new records of Syndicus Motschulsky (Coleoptera, Staphylinidae, Scydmaeninae) from SE Asia and Australia, Zootaxa 3873 (2), pp. 165-177 : 169	169