(Fig. 13 E–F)
Antarctobius hyadesii Fairmaire 1885: 58; Enderlein 1907: 39 (Listroderes). = Listroderes laevigatus Germain 1896: 801.
Geographic distribution as in figure 12.
Specimens examined: Tierra del Fuego, Bahía Thetys, II- 20-1951, Torres col. (MLP). CHILE, Magallanes, Isla Navarino, Puerto Williams (55 °S, 1900ft), I- 21-1959 (BMNH). Temporal distribution: January to April.
Plant association: Senecio allocophyllus (Morrone 1992 a)