Abstract
Tychius bicolor Brisout, 1862 and Sibinia arenariae Stephens, 1831 are reported from the Archipelago of Madeira, respectively Madeira and Porto Santo, for the first time. Two additional specimens of T. filirostris Wollaston, 1854, known previously from only two specimens from Porto Santo, were examined. Following the study of these specimens and others from the Canary Islands (Tenerife, La Palma) and Selvagen Pequena, T. colonnellii Caldara, 1991 from Tenerife is proposed as a junior synonym of T. filirostris.
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