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).