Neorhyssemus quinquecostatus (Schmidt, 1911) Figs 28B, 56A Rhyssemus quinquecostatus Schmidt, 1911a: 15. Neorhyssemus quinquecostatus – Gordon & Pittino 1992: 270. Diagnosis Length 1.9 – 2.1 mm. Head with clypeus emarginate; frontoclypeal suture furrowed; sinuate. Pronotal transverse ridges widely separated with second transverse ridge not interrupted medially; longitudinal ridges joined among them anteriorly. Elytra with thick costae. Material examined BRAZIL – Bahia • 1 spec.; Caravelas; Mar. 1996; R. Diniz leg.; CEMT. – Maranhão • 8 specs; Carolina, Fazenda Cincorá; 17–22 Oct. 2009; F. Limeira-de-Oliveira, R.O. Souza and M.B. Aguiar Neto leg.; CEMT • 2 specs; Pedrinhas, São Luís Island; 17 Aug. 1984; E.C. Bergmann leg.; blacklight; CEMT. – Mato Grosso • 2 specs; Chapada dos Guimarães; 25 Mar. 2001; A.D. Ramos leg.; light trap; CEMT • 3 specs; same data as for preceding; 15°24′31″ S, 55°43′53″ W; 2 Dec. 2015; A. Frolov and L. Akhmetova leg.; CEMT • 8 specs; Diamantino, Alto Rio Arinos; Oct. 2001; E. Furtado leg.; CEMT. – Rondônia • 4 specs; Fazenda Rancho Grande, 62 km S of Ariquemes; Feb. 1997; Vaz-de-Mello and Vulinec leg.; CEMT. Sexual dimorphism Unknown. Collecting information Specimens were collected with light traps.

Published as part of Gama, Emanuel R. R., Skelley, Paul E. & Vaz-De-Mello, Fernando Z., 2026, Identification guide to the Aphodiinae (Coleoptera: Scarabaeidae) of Brazil, pp. 1-225 in European Journal of Taxonomy 1038 (1) on page 174, DOI: 10.5852/ejt.2026.1038.3175