Ceratolontha Arrow, 1948

Fuhrmann, Juares & Vaz-De-Mello, Fernando Z., 2017, Macrodactylini (Coleoptera, Scarabaeidae, Melolonthinae): primary types of type species and taxonomic changes to the generic classification, European Journal of Taxonomy 350, pp. 1-71 : 26-27

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. 10 A ); maxillary palpus longer than antennomeres I−VI; pronotal anterior and posterior margins not beaded; prosternum anteriorly concave (similar to Fig. 12 K ); 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.

Remark

Ceratolontha is distinguished from other Macrodactylini genera by the head ornamentation ( Fig. 10 B–C).

Figures

Fig. 10. A−B, D−F. Head−pronotum, dorsal. C. Head−prothorax, lateroventral. G. Metatibia, internal. A. ♀. B−G. ♂. H−K. Aedeagus (lateral, parameres apex). A−C, H−I. Ceratolontha venezuelae Arrow, 1948. D. Rhinaspis aenea Billberg, 1820. E. Rhinaspis ohausi Moser, 1921. F−G, J−K. Rhinaspis aeneofusca Moser, 1919. Scale bars = 1 mm.

Fig. 12. ♂♂. A. Head–prothorax dorsal, tarsus rotated laterally to apex. B. Antenna. C. Protibia−tarsus. D−I. Aedeagus (lateral, parameres apex). J. Metatibia. K. Head−prothorax, ventral. A, F−G. Euryaspis obesa (Burmeister, 1855) comb. nov. B−E. Euryapsis gaudichaudi Blanchard, 1850. H−J. Philochloenia amata nom. nov. K. Philochloenia castaneipennis (Guérin-Méneville, 1831) comb. nov. Scale bars = 1 mm.