- Penthelater plebejus (Candèze, 1873) [synonym of Ectamenogonus plebejus]
- Arimoto, K. 2022. Taxonomic revision of the genus Ectamenognonus Buysson (Coleoptera, Elateridae, Elaterinae) from Japan. Zootaxa 5087(2): 306–334. DOI: 10.11646/zootaxa.5087.2.4. . Reference page.
- Cate, P.C., Sánchez-Ruiz, A., Löbl, I. & Smetana, A. 2007. Elateridae, pp. 89–209. In: Löbl, I. & Smetana, A. (eds.), Catalogue of Palaearctic Coleoptera, Volume 4. Elateroidea – Derodontoidea – Lymexyloidea – Cleroidea - Cucujoidea. Stenstrup, Denmark: Apollo Books. 935 pp. ISBN 87-88757-67-6 DOI: 10.1163/9789004260894 . Google Books (limited preview available). Reference page. [see pages 135, 178]