Puranius nigrinus (Fairmaire)
Listroderes nigrinus Fairmaire 1884: 503; Kuschel 1949: 45 ( Amathynetes); Kuschel 1955: 288 ( Puranius); Kuschel 1986: 117 ( Macrostyphlus); Morrone 1994: 52 ( Puranius).
= Listroderes obscurus Germain 1896: 832; Kuschel 1955: 288 ( Puranius).
= Listroderes nigrinus Germain 1896: 801 (preoccupied).
Geographic distribution as in figure 18.
Specimens examined: ARGENTINA: Tierra del Fuego, Bahía San Sebastián, IV-21-1971, Flint & Hevel col. (USNM); Bahía San Sebastián, Punta de Arena, IV-20-1971, Fint & Hevel col. (12 specimens same data, USNM). CHILE: Magallanes, Última Esperanza, Cerro Castillo, II-10-1957, Cekalovic col. (4 specimens with same data, USNM).
Temporal distribution: August to April.
Plant association: Feeding on Taraxacum officinale (Asteraceae); on and under Nothofagus (Morrone 1994) .