Revision of Arcastes Baly, 1865 from the Oriental Region (Coleoptera, Chrysomelidae, Galerucinae) Author Hazmi, Izfa Riza ,, Germany Author Wagner, Tomas Editor in Chief; Entomologische Zeitschrift, Universitaet Koblenz-Lindau, Koblenz, Germany text ZooKeys 2010 2010-04-01 42 42 79 99 journal article 10.3897/zookeys.42.336 66993826-063a-476f-a821-bfff44e916aa 1313–2970 576653 Arcastes biplagiata Baly, 1865 Arcastes biplagiata Baly, 1865: 147 Total length. 4.45–7.35 mm (mean: 5.96 mm , n=12) Head . Reddish-brown to red. Antennae entirely black and only the terminal three antennomeres usually contrasting pale yellow to reddish (Figs 1, 7). Ratio of length of second to third antennomeres 0.50–0.57 (mean: 0.53); third to seventh antennomeres enlarged, ratio of length of third to fourth antennomeres 0.60–0.67 (mean: 0.63), eighth to eleventh antennomeres very slender ( Fig. 8 ).