Potamobrotica Blake, 1966

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 : 23

Genus Potamobrotica Blake, 1966

Potamobrotica Blake, 1966b: 351 (type species Potamobrotica trifasciata Blake, 1966 , by original designation).

Remarks

This genus contains three described species. They occur in Brazil and Venezuela. See Fig. 98 for a habitus illustration.

The Palearctic species Sermylassa halensis (Linnaeus, 1767) , belonging to the tribe Hylaspini Chapuis, 1875 , has been reported from several localities in North America, but these reports are extremely doubtful ( Wilcox 1965). Since Sermylassa Reitter, 1913 probably does not occur on the American continents, we have excluded this genus from the following key. However, if specimens were to be discovered, they would probably be keyed to couplet 107, although the inner lobes of the tarsal claws are more pointed than in many other genera with appendiculate claws. The uniformly metallic green elytra of Sermylassa easily distinguish this genus from the two genera diagnosed in couplet 107, Potamobrotica and Coronabrotica Moura, 2010 .

Figures

Figs 91–99. Dorsal views. 91. Aristobrotica allardi (Jacoby, 1887). 92. Hyperbrotica ebraea (Fabricius, 1787). 93. Hystiopsis beniensis Blake, 1966. 94. Metrobrotica geometrica (Erichson, 1847). 95. Rachicephala vittatipennis (Jacoby, 1887). 96. Neobrotica variabilis Jacoby, 1887. 97. Cerotoma arcuata (Olivier, 1791). 98. Potamobrotica trifasciata Blake, 1966, holotype. 99. Eucerotoma sp.