Taxonomic review of the Dichotomius (Luederwaldtinia) agenor species group (Coleoptera: Scarabaeidae: Scarabaeinae)

The Neotropical D. agenor species group of the subgenus Luederwaldtinia Martínez, 1951 is taxonomically reviewed. After examination specimens in collections, will consist seventeen species, a leap from former nine species: (Harold, 1869), amplicollis belus 1880), centralis deyrollei sagittarius 1869) stat. rev., tristis (Luederwaldt, 1923), triquetrus validipilosus 1931), fornicatus 1931) [transferred to lucasi and which bosqi (Pereira, 1941) considered be new synonym], inachoides (Felsche, 1901) fisus (Selenocopris)], simplicicornis 1935) subaeneus (Castelnau, 1840) carbonarius group], rafanunezi sp. nov. Mato Grosso, henripittieri Venezuela enioi Guatemala Costa Rica. This review was based on external morphology characters male genitalia (aedeagus internal sac). Descriptions redescriptions were made after examining type-specimens already described species. Lectotype designations, revalidations, descriptions are provided.