2 literature references for Stegobium testaceum (Thunberg, 1784):

Author: White, Richard E.
Year: 1982
Title: A catalog of the Coleoptera of America north of Mexico. Family: Anobiidae
Source: US Department of Agriculture, Agriculture Handbook
Author: Thunberg, C. P.
Year: 1784
Title: Novae insectorum species descriptae
Source: Nova Acta Regiae Societatis Scientiarium Upsaliensis, vol. 4