Byrasba Harold, 1869

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 : 21-22

publication ID	https://doi.org/10.5852/ejt.2017.350
publication LSID	lsid:zoobank.org:pub:8D14DBDE-AD13-445B-B2D0-221F19FC7C37
DOI	https://doi.org/10.5281/zenodo.3851147
persistent identifier	https://treatment.plazi.org/id/03C687BD-4609-324C-FDF7-FE44DECDD2C2
treatment provided by	Carolina (2020-05-18 19:54:20, last updated 2024-11-26 00:52:23)
scientific name	Byrasba Harold, 1869
status

Treatment

Byrasba Harold, 1869 View in CoL , revalidated

Barybas Burmeister, 1855: 20 View in CoL (non Blanchard 1850).

Byrasba Harold, 1869: 122 View in CoL (replacement name for Barybas Burmeister View in CoL ).

Byrasba View in CoL – Katovich 2008: 6 (synonymy with Rhinaspis Perty, 1833 View in CoL ).

Type species

Barybas volvulus Burmeister, 1855 View in CoL (designation: monotypy).

Diagnosis

Pronotal anterior and posterior margins not beaded ( Fig. 2 B View Fig ), posterior margin prominent with a medial tooth ( Fig. 2 B View Fig ); prosternum anteriorly concave (similar to Fig. 12 K View Fig ); protibia with three external teeth and without spur ( Fig. 2 B View Fig ); male protarsomere I with an internomedial tooth and II–VI with external projection ( Fig. 2 B View Fig ); elytron with five longitudinal grooves between internal margin and humerus, lateral margins beaded, posterior and posterointernal margins not beaded; metatarsomere V without internoproximal spine-like setae; abdomen with intersegmental membrane VII–VIII concealed.

Remarks

See Agaocnemis . The present study revalidates Byrasba , formerly a synonym of Rhinaspis , based on the following characters (opposition to Rhinaspis ): pronotal lateral margins straight ( Fig. 2 B View Fig ) (crenulate, Fig. 10 View Fig D–F); posterior margin prominent with a medial tooth ( Fig. 2 B View Fig ) (posterior margin not prominent and unarmed, Fig. 10 View Fig D–F); protibial spur absent (present); protarsomeres II–IV with externodistal projection (without projection); elytron with five weakly prominent lines between internal margin and humerus (with three lines).

References

Blanchard C. E. 1850. Classe des insectes. Ordre des coleopteres. In: Milne-Edwards H., Blanchard C. E. & Lucas H. (eds) Catalogue de la collection entomologique du Museum d'Histoire naturelle de Paris. Gide et Baudry, Paris.

Burmeister H. 1855. Handbuch der Entomologie. Vierter Band. Besondere Entomologie. Fortsetzung. Zweite Abtheilung. Coleoptera Lamellicornia Phyllophaga chaenochela. Theodor Johann Christian Friedrich Enslin, Berlin. https: // doi. org / 10.5962 / bhl. title. 8135

Harold E. von 1869. Abanderungen vergebener Namen. Coleopterische 5: 122 - 125.

Katovich K. 2008. A generic-level phylogenetic review of the Macrodactylini (Coleoptera: Scarabaeidae: Melolonthinae). Insecta Mundi 23: 1 - 78.

Laporte F. L. de. 1832. Memoire sur cinquante especes nouvelles ou peu connues d'insectes. Annales de la Societe Entomologique de France 1: 386 - 415.

Perty J. A. M. 1833. Delectus animalium articulatorum, quae in itinere per Brasiliam annis MDCCCXVII- MDCCCXX jussu et auspiciis Maximiliani Josephi I. Bavariae regis augustissimi peracto. Fascicle 1. Hubschmann, Munich.

Figures

Fig. 2. ♂♂. A–D. Head–prothorax dorsal, tarsus rotated laterally to apex. E–G. Metatibia. H–I. Aedeagus (lateral, parameres apex). A, E. Agaocnemis pruina Moser, 1918. B, F, H–I. Byrasba volvula (Burmeister, 1855). C, G. Hamatoplectris caracana Frey, 1969. D. Hieritis macrocera Burmeister, 1855. 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.

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.