Pseudorhynchus cornutus ( Redtenbacher, 1891 )

Morris, Glenn K, Ingrisch, Sigfrid, Willemse, Fer, Willemse, Luc, De Luca, Paul A. & Klimas, Dita, 2025, Stridulation songs of some Tettigoniidae (Ensifera, Orthoptera) from Papua New Guinea, Zootaxa 5600 (1), pp. 1-81 : 68

Pseudorhynchus cornutus ( Redtenbacher, 1891)

(Figs 73,74)

Material studied. PNG, Wau, W.E.I., 29 vii 1981, G.K. Morris (1 male) ; PNG, McAdam National Park , Bulolo Gorge, 28 viii 1981, G.K. Morris, identified Judith Marshall (1 male) .

Systematics. The stridulatory file and other particulars of these males agree fully with Bailey’s revision (1979).

Stridulation. Song loud to human ears, a steady indefinitely sustained sequence of two alternating pulse types ( Fig. 75 AB). The more sustained and intense pulse type of the two, at higher time resolution, shows as a repeating stereotyped complex wave ( Fig. 75D ). The Fourier analysis ( Fig. 75C ) shows energy distributed over a band from 10 kHz to almost 60 kHz, but the most intense frequencies show as a broad peak ~ 11–15 kHz .

Figures

FIGURE 75. Conocephalus semivittatus (Walker, 1869) habitus of female colour morph.