Macrodactylini (Coleoptera, Scarabaeidae, Melolonthinae): primary types of type species and taxonomic changes to the generic classification Author Fuhrmann, Juares Author Vaz-De-Mello, Fernando Z. text European Journal of Taxonomy 2017 2017-09-13 350 1 71 journal article 22059 10.5852/ejt.2017.350 52e4ae01-f51f-4c4a-8a14-9fb5b17788d6 2118-9773 3832682 8D14DBDE-AD13-445B-B2D0-221F19FC7C37 Ceratolontha Arrow, 1948 Type species Ceratolontha venezuelae Arrow, 1948 (designation: monotypy). Diagnosis Male clypeus with two long horns ( Fig. 10 B–C) and female clypeus deeply emarginate ( Fig. 10A ); maxillary palpus longer than antennomeres I−VI; pronotal anterior and posterior margins not beaded; prosternum anteriorly concave (similar to Fig. 12K ); protibia with three external teeth and without spur; elytron with three raised longitudinal lines between internal margin and humerus, posterior and posterointernal margins not beaded; mesotibia with some spines; metatarsomere V without spine-like setae; abdomen with intersegmental membrane VII–VIII concealed. Fig. 9. A . Lateroventral detail of male abdomen. B , F , H . Aedeagus, lateral. C . Left paramere. D , G , I . Parameres, apex. E . Parameres, ventral. A−E . Chariodema virescens Blanchard, 1842 . F−G . Ceraspis bivulnerata ( Germar, 1824 ) . H−I . Faula cornuta Blanchard, 1850 . Scale bars = 1 mm. Remark Ceratolontha is distinguished from other Macrodactylini genera by the head ornamentation ( Fig. 10 B–C).