Bickhardt H., 1918: Niponiidae (now in Histeridae). Wytsman P. (ed.): Genera Insectorum, fasc. 172. 1 colour plate, 4 pp. (in German).
195
8
GIN 202
Gardner J. C. M., 1935: Histeridae: Niponiinae. Wytsman P. (ed.): Genera Insectorum, fasc. 202. 1 plate, 6 pp. (in English).
195
8
ZVH 342
Kanaar P., 2003: Revision of the genus Trypeticus Marseul (Coleoptera: Histeridae). 318 pp. + supplements. Zoologische Verhandelingen. 342: 3-318. Discount 50%!
495
20
CPC 2N
Löbl I, Löbl D., 2015: Catalogue of Palaearctic Coleoptera, vol. 2 (2 parts): Hydrophiloidea - Staphylinoidea. Revised and updated edition. xxvi + 1702 pp. Brill.
4990
200
KOP 079
Mazur S., 1973: Coleoptera: Sphaeritidae, Histeridae. Klucze owadów Polski. Klucze owadów Polski XIX(11-12). 74 pp. Discount 50%!