Cosmoplatidius bilineatus (Buquet, 1841), comb. nov.

(Figures 1–7)

Pteroplatus bilineatus Buquet, 1841b: 154; 1841c: 207; Strauch, 1861: 127; Lacordaire, 1869: 165; Gemminger, 1872: 2966 (cat.); Aurivillius, 1912: 455 (cat.); Blackwelder, 1946: 588 (checklist); Monné, 1994: 47 (cat.); Monné & Giesbert, 1994: 133 (checklist); Martínez, 2000: 90 (distr.); Monné, 2005: 451 (cat.); Monné & Hovore, 2006: 114 (checklist); Monné, 2018: 671 (cat.).

Pteroplatus sellatus White, 1853: 82; Lacordaire, 1869: 165; Bates, 1872: 192 (distr.); Gemminger, 1872: 2966 (cat.); Bates, 1880: 73; 1885: 317 (distr.); Aurivillius, 1912: 455 (cat.); Blackwelder, 1946: 588 (checklist). Syn. nov.

Cosmoplatidius sellatus; Linsley, 1961b: 4; Chemsak et al., 1980: 32 (distr.); Chemsak, et al., 1992: 78 (checklist); Chemsak & Noguera, 1993: 61 (distr.); Maes et al., 1994: 11 (distr.); Monné, 1994: 47 (cat.); Monné & Giesbert, 1994: 132 (checklist); Noguera & Chemsak, 1996: 402 (checklist); Maes, 1998: 905 (distr.); Turnbow et al., 2003: 17 (distr.); Monné, 2005: 449 (cat.); Napp & Martins, 2006: 478 (syn); Hovore, 2006: 374 (distr.); Monné & Hovore, 2006: 114 (checklist); Swift et al., 2010: 26 (distr.); Maes et al., 2010: 564 (distr.); Monné, 2018: 183 (cat.).

Cosmoplatidius ochraceus Linsley, 1961b: 5; Monné, 1994: 47 (cat.); Monné & Giesbert, 1994: 132 (checklist); Monné, 2005: 449 (cat.).

Buquet (1841b) described Pteroplatus bilineatus (Fig. 1) from a single specimen from Colombia. After this, the species was only mentioned in catalogues and checklists, except by Buquet (1841c).

According to the website of the Bernice Pauahi Bishop Museum (https://www.bishopmuseum.org/), the part 2 of the volume 10 of the “Annales de la Société Entomologique de France ” was published in July 1841. Buquet’s paper (1841b) was the last work of that volume. Buquet (1841c) is dated as having been published in June 1841. However, following the reasoning by Dickinson (2011) (see remarks in Pteroplatus), Buquet (1841c) was published in July 1841. Thus, only the day of publication of each work from Buquet will allow us to know if P. bilineatus was published in Buquet (1841b) or Buquet (1841c). Unfortunately, we do not know the exact date of publication of each magazine involved. Accordingly, we are considering P. bilineatus as having been published in Buquet (1841b), following the current citation in catalogues.

Subsequently, White (1853) described Pteroplatus sellatus based on a single specimen (Fig. 2) from Mexico (Puebla). Linsley (1961b) transferred P. sellatus to Cosmoplatidius Gounelle (1911), and described C. ochraceus based on a single male from Colombia (Cesar). Napp & Martins (2006) considered Cosmoplatidius ochraceus as a junior synonym of C. sellatus .

Examination of the original description of P. bilineatus, photograph of the holotype (Fig. 1), comparison with a large series of specimens of P. sellatus deposited at MZSP (e.g. Figs. 3–7), and photographs of the holotype of the P. sellatus (Fig. 2), allows us conclude that both belong to the same species. Thus, we transfer Pteroplatus bilineatus to Cosmoplatidius, and synonymize P. sellatus with P. bilineatus .