A contribution to the dermestid species (Coleoptera: Dermestidae) described by David Sharp from the Neotropical Region - Part 4.

The genera Cryptorhopalum Guérin-Méneville, 1838 and Hemirhopalum Sharp, 1902 from the Neotropical Region are reviewed. Five species described by Sharp were studied, and lectotype was designated for Cryptorhopalum septemsignatum Sharp, 1902. Colour habitus is firstly illustrated for the following species: Hemirhopalum bicolor Sharp, 1902; Hemirhopalum buprestoide Sharp, 1902; Hemirhopalum clythraeforme Sharp, 1902; Hemirhopalum hadrotomoide Sharp, 1902.Se revisan los géneros Cryptorhopalum Guérin-Méneville, 1838 y Hemirhopalum Sharp, 1902 de la Región Neotropical. Se estudian cinco especies descritas por Sharp y se designa lectotipo para Cryptorhopalum septemsignatum Sharp, 1902. Por primera vez se ilustra en color el habitus de las siguientes especies: Hemirhopalum bicolor Sharp, 1902; Hemirhopalum buprestoide Sharp, 1902; Hemirhopalum clythraeforme Sharp, 1902; Hemirhopalum hadrotomoide Sharp, 1902