Scotobius akidioides bicostatus Kulzer

(Figs. 11–12)

Scotobius akidioides bicostatus Kulzer, 1955: 402 .

Scotobius freudei Marcuzzi, 1977: 144 . NEW SYNONYMY.

Type material. Holotype of Scotobius akidioides bicostatus (Fig. 11): [Chubut/ Esquel I-1941] [Paratype] [Holotypus / akidioides ssp. / bicostatus nov./ det. H. Kulzer 1955] (NHMB). Note: the label of holotypus lacks generic name.

Holotype of Scotobius freudei (Fig. 12): [Rio Negro/ El Bolsón/ IX-56 (pro 1956) K. (pro Kovacs)] [ Scotobius / freudei / mihi] [Holotypus / Scotobius / freudei / Marcuzzi, 1977] [Museo Genova/ coll. G. M a r c u z z i / (acquisto 2000)] (MSNG).

Discussion. The type specimens of both nominal species present the same characters given by Kulzer (1955) in his description of Scotobius akidioides bicostatus and by Marcuzzi (1977) for S. freudei (Figs. 11–12): pronotum arched with lateral margins raised forming a slightly marked groove with the disc, posterior margin wider than anterior margin, anterior angles rounded, posterior angles obtuse; each elytron with one carinae closer to lateral margin than suture, with a strong declivity between this carina and the lateral margin carina-shape.