Account
What the sources say about this taxon, as written.
discussion · 
Plazi
Remarks . This species is only known from the holotype , a male collected at Lubumbashi ( Democratic Republic of Congo ), and currently is the sole representative of the genus ( Massa 2015 ). The two specimens listed above concur well with the description of this peculiar taxon, including its very narrow anterior part of the pronotum (see measurements), after which the Latin name of the genus. Concerning the position of cerci, in the holotype are reported below the subgenital plate, but supposedly artificial in the mounted specimen. Actually the insect holds the cerci otherwise, above the subgenital plate. Cerci are very distinctive: their tip is black and chitinous, with the shape of a small spoon ( Figs 16A, 16B ). The stridulatory file, still not described, is 1.6 mm long, nearly straight, and consists of ca. 45 evenly spaced teeth ( Fig. 16C ).
description · Plazi
A comparison of the holotype and freshly collected material of O. magnus with the detailed photographs of the recently described Anustithorax spinger Massa (2015) leaves little doubt that these two taxa are conspecific. They have identical morphology of the cerci, head, pronotum, and stridulatory area of the tegmen as well as a very similar body size. For this reason, A. spiniger is here considered a junior synonym of O. magnus . Bioacoustics. Unlike O. lesnei , this species does not stridulate in flight and males only call from stationary positions. The call consists of a series of 3-syllable echemes produced every 0.7– 1.3 s ; mean syllable duration is 0.0062 s (SD=0.00186, n=50); the peak frequency of the call is 10.5–14.6 kHz ( Figs. 54 J–L). The call is audible from a short distance as a series of faint clicks.
behaviour · bio.acousti.ca
Unlike O. lesnei, this species does not stridulate in flight and males only call from stationary posi- tions. The call consists of a series of 3-syllable echemes produced every 0.7–1.3 s; mean syllable duration is 0.0062 s (SD=0.00186, n=50); the peak frequency of the call is 10.5–14.6 kHz (Figs. 54J–L). The call is audible from a short distance as a series of faint clicks.
