Scythropopsis lugens (Thomson, 1865), comb. nov. (Fig. 100)

Psapharochrus lugens Thomson, 1865: 543; Lacordaire, 1872: 543; Thomson, 1878: 15 (type); Monné, 2019: 300 (cat.).

Acanthoderes lugens; Gemminger,1873:3146 (cat.); Bates, 1880: 140, 1885: 378; Blackwelder, 1946: 611 (checklist); Chemsak et al., 1992: 130 (checklist); Noguera & Chemsak, 1996: 406 (cat.).

Acanthoderes (Psapharochrus) lugens; Aurivillius, 1923: 386 (cat.); Gilmour, 1965: 613 (cat.); Monné & Giesbert, 1994: 231 (checklist); Monné, 1994: 64 (cat.).

Aegomorphus lugens; Chemsak & Noguera, 1995: 99; Monné, 2005: 166 (cat.).

Bates (1880) transferred Psapharochrus lugens to Acanthoderes but did not provide any explanation. Chemsak & Noguera (1995) transferred Acanthoderes lugens to Aegomorphus also without explanation. However, Noguera & Chemsak (1996) listed the species as Acanthoderes lugens . Probably this latter work was already in press when the transference to Aegomorphus was done. Nevertheless, examination of photograph of the holotype shows that the eyes are finely granulated, and the elytra have distinct carina. Accordingly, the species is transferred to Scythropopsis . Monné (2019), without any explanation, listed the species as Psapharochrus lugens .

Known geographical distribution (Monné, 2019; Tavakilian & Chevillotte, 2019): Mexico (Mexico, Puebla, Veracruz).