Listroderes laevirostris Germain 1895: 583; Kuschel 1950: 14 (Listroderes subgenus Antarctobius); Morrone 1993 b: 135 (Germainiellus).
= Listroderes quadrituberculatus Champion 1918 c: 51.
Geographic distribution as in figure 17.
Specimens examined: ARGENTINA: Tierra del Fuego, Bahía Aguirre, 24 -X- 1941, Gutierrez col. (MLP); CHILE: Magallanes, Isla Wellington, Puerto Edén (49 °S, 3100 ft), 20 -XII- 1958; Península Muñoz Gamero (2000 ft), 27 -XII- 1958 (BMNH).
Temporal distribution: October to April.
Plant association: Senecio smithii (Morrone 1993 b)