Itaitubana Bechyné, 1963

Viswajyothi, Keezhpattillam & Clark, Shawn M., 2022, New World genera of Galerucinae Latreille, 1802 (tribes Galerucini Latreille, 1802, Metacyclini Chapuis, 1875, and Luperini Gistel, 1848): an annotated list and identification key (Coleoptera: Chrysomelidae), European Journal of Taxonomy 842, pp. 1-102 : 10

Genus Itaitubana Bechyné, 1963

Itaitubana Bechyné, 1963: 238

(type species Galerucella spinipennis Bowditch, 1923 , by monotypy).

Remarks

This genus currently contains nine species, distributed from Mexico through much of South America. See Figs 26–27 and 222 for habitus illustrations and morphological details. However, the species are heterogeneous. Among other things, the tarsal claws are reported to be either bifid or appendiculate. Future investigation will likely reveal that some species need to be transferred to other genera. Beyond the claws, the relative lengths of the antennomeres also vary. Some workers have used the very long third antennomere as a diagnostic character for Itaitubana (e.g., Bechyné & Bechyné 1969). Indeed, we have employed this character in the following key. However, species such as I. alternata ( Jacoby, 1886) do not have this characteristic. Future study may prove that they would be better placed in Caraguata .

Figures

Figs 19–27.Dorsal views. 19. Nestinus bimaculatus Clark, 1865.20. Diorhabda carinulata (Desbrochers, 1870). 21. Apteroyinga andrewsi Viswajyothi & Clark, 2020. 22. Tricholochmaea cavicollis (LeConte, 1865). 23. Pyrrhalta viburni (Paykull, 1799).24. Xanthogaleruca luteola (Müller, 1766).25. Galerucella nymphaeae (Linnaeus, 1758). 26. Itaitubana lineatipennis (Jacoby, 1886). 27. Itaitubana alternata (Jacoby, 1886).

Figs 218–223. 218. Socorroita carinipennis (Bowditch, 1923), lateral view showing elytral carina. 219. Socorroita elvira Bechyné, 1956, lateral view showing elytral carina. 220. Diorhabda carinulata (Desbrochers des Loges, 1870), lateral view showing elytral costa. 221. Metrogaleruca sp., lateral view showing elytropleuron. 222. Itaitubana lineatipennis (Jacoby, 1886), lateral view. 223. Caraguata pallida (Jacoby, 1886), lateral view of elytron.