On the rare species of Dicordylus Lacordaire and Homalocerus Schoenherr (Coleoptera, Belidae) with notes on male terminalia of D. vanini Mermudes

New distribution data are presented for the rare belid species Homalocerus antennalis Hustache, 1940, H. lyciformis (Germar, 1833) and Dicordylus serranus Vanin, 1976. A description of the male terminalia is presented for the first time for D. vanini Mermudes, 2006 and a neotype is designated for this species as the holotype (and only known specimen) was destroyed in the fire at the National Museum in Rio de Janeiro on September 2, 2018.