"...and Ectopria (Chilectopria) grandis Pic, 1947, syn. nov. is proposed as a new synonym of Tychepsephus felix Waterhouse, 1876, which is redescribed."

Shepard WD, Barr CB (2023) A revision of the Chilean water penny genus Tychepsephus Waterhouse, 1876 (Coleoptera, Psephenidae, Eubriinae), with description of a second species and two larval morphotypes, and notes on other Chilean Psephenidae. ZooKeys 1164: 23-61. https://doi.org/10.3897/zookeys.1164.103184