Acanthoproctus cervinus (Haan, 1843)

Material examined: 1 male, CHelb8946 (SF), NAMIBIA, Hardap region, Maltahöhe, 1380 m, 24.84398S, 18.972838E, 4.– 18.1.2013, leg. S. Murzin.

References: Kowalski & Lakes-Harlan 2013

Bioacoustics. Tegmina (Fig. 3), stridulatory file (Table 1) and spectrum of the song do not show large differences to the typical Hetrodini pattern. The calling song (Fig. 7G; after Kowalski & Lakes-Harlan 2013) consists of long series of syllables (song type B in Fig. 5). The SRR is unusually low for Hetrodini and the syllables much longer than in the other genera (Kowalski & Lakes-Harlan 2013; see Table 2) except in Acanthoplus .