Monoxia LeConte, 1865

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 : 11

Genus Monoxia LeConte, 1865

Monoxia LeConte, 1865: 221 (type species Galleruca angularis LeConte, 1859 , by subsequent designation of Blake 1939).

Remarks

This genus contains 15 described species, distributed from Canada to Guatemala. See Fig. 35 for a habitus illustration. See Blake (1939) for a key to the species. However, realize that one species from Texas has been named subsequent to that key, and the generic placement of the old species from Guatemala warrants reevaluation ( Riley 2020). All species of Monoxia are rather similar to each other, although easily separating into two groups, those with slender, dorsoventrally flattened aedeagi, and those with more robust aedeagi. Whereas most of the species have bifid claws in the male and simple claws in the female, the anomalous species M. schizonycha Blake, 1939 has bifid claws in both genders. Four species formerly included in the genus are herein transferred to Yingabruxia gen. nov.

Figures

Figs 28–36. Dorsal views. 28. Schematiza flavofasciata (Klug, 1829). 29. Yingaresca difficilis (Bowditch, 1923). 30. Yingaresca fuscomaculata (Jacoby, 1886). 31. Metrogaleruca obscura (Degeer, 1775). 32. Brucita marmorata (Jacoby, 1886). 33. Platynocera murina Blanchard, 1846. 34. Erynephala maritima (LeConte, 1865). 35. Monoxia angularis (LeConte, 1859). 36. Yingabruxia sordida (LeConte, 1858) comb. nov.