Omorgus (Omorgus) nocheles Scholtz, 1990 Fig. 5 Omorgus (Omorgus) nocheles Scholtz, 1990: 1412 (original description); Gómez 2008: 515 (key for Argentinean species); Zidek 2013: 14 (checklist); Zidek 2017: 105 (checklist); Smith 2017: 86 (notes). Omorgus nocheles: Deloya 2005: 122 (checklist). Type specimen examined. Holotype, by original designation (♂ LACM). First label [white, typeset]: “ El Bolson, Rio Negro, / ARGENTINA / Oct. 24–25, 1956 / Andor Kovacs ”. Second label [white with red border, Clarke Scholtz’s handwriting]: “ Omorgus / nocheles / 1988 / Scholtz / HOLOTYPE ”. Third label [white, printed]: “ [QR Code] / LACM ENT 160322 ” (Fig. 5 E). Type locality: “ Argentina, El Bolsón, Río Negro ”. Geographic distribution. Omorgus (O.) nocheles is known only from two specimens collected in 1956 in El Bolsón, Argentina (Scholtz 1990).

Published as part of da Costa-Silva, Vinícius, Strümpher, Werner P., Barclay, Maxwell V. L. & Vaz-de-Mello, Fernando Z., 2024, An illustrated catalogue of South American species of Omorgus Erichson, 1847 (Coleoptera, Trogidae, Omorginae) including a neotype designation and taxonomical changes, pp. 81-101 in Contributions to Entomology 74 (1) on pages 81-101, DOI: 10.3897/contrib.entomol.74.e126799