Rhinaspis Perty, 1833

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 : 50

Rhinaspis Perty, 1833

Mallogaster Dejean, 1833: 162, nomen nudum.

Rhinaspoides Moser, 1919b: 348 . Type species: Rhinaspoides aeneofusca Moser, 1919 (designation: monotypy).

Ulomenes Blanchard, 1850: 125 . Type species: Ulomenes hypocrita Blanchard, 1850 (designation: monotypy); synonym of Rhinaspis fuhrmanni Smith (2016: 2) (replacement name).

Hyporhiza Dejean, 1833 : 162. Type species: Melolontha hypocrita Mannerheim, 1829 (designation: monotypy).

Rhinaspoides – Katovich 2008: 6 (synonymy).

Ulomenes – Katovich 2008: 6 (synonymy).

Hyporhiza – Bousquet & Bouchard 2013: 37 (synonymy).

Type species

Rhinaspis schrankii Perty, 1833 (designation: monotypy); junior synonym of Rhinaspis aenea (Billberg, 1820) .

Diagnosis

Clypeal ventral area strongly widened, posterior angle partially covering the canthus ( Fig. 10 D–F); pronotal anterior margin beaded, lateral margins crenulate, posterior margin prominent ( Fig. 10 D–F); prosternum anteriorly concave (similar to Fig. 12 K ); protibia with three external teeth and with a spur; elytron with three smooth and weakly prominent lines between internal margin and humerus, posterior and posterointernal margins not beaded; abdomen with intersegmental membrane VII–VIII concealed.

Remarks

The majority of species of Rhinaspis are characterized by having the male clypeus anteriorly prominent with a broad, truncate apex (e.g., Rhinaspis aenea , Fig. 10 D ) or a bifid horn (e.g., Rhinaspis ohausi Moser, 1921 , Fig. 10 E ), and male and female clypeal posterior angle acute and strongly extended over the canthus. However, some species have a trapezoid or rectangular clypeus (e.g., Rhinaspis aeneofusca , Fig. 10 F ). The structure of the pronotum and the elytron, described in “diagnosis”, are more suitable to distinguish Rhinaspis from other Macrodactylini genera.

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.