Bioacoustics of Amytta merumontana

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:496656 Holotype male, Tanzania , Mt Meru , shaken from understory trees of montane forest, 2085 m , November 2013 . Depository MfN . Paratype. 1 female; shaken from understory trees of montane forest, 1700 m , November 2013 . Depository MfN. Further paratype material: All Tanzania , Mt Meru : 12 males , 17 females , 1 female nymph, shaken from understory trees of montane forest, 1700 m , November 2013 , December 2015 and July 2016 . 2 females, canopy montane forest 2085 m , November 2013 . Collection C. Hemp. Description. Male. General body shape and colour : Flightless, small, uniformly light yellowish green. In life specimens laterally pair of vivid yellow lines starting on head behind eyes, continuing along pronotum, fading in preserved specimens. Eyes brown-reddish. Tegmina meeting median, along the vanal area with brownish lines. Head and antennae: Fastigium of vertex smooth conical, conus between eyes about half the size of first antennal segment. Antennae green in alive specimens, fading to tawny-whitish in preserved ones; longer than body length. Eyes circular, prominent, of brown-red colour. Cuticle of pronotum shiny, short scattered hairs along pronotal margins. Elytra shortend, tectiform with reduced venation. Stridulatory area hidden under pronotum. Alae reduced to slender lobes covered by elytra. Thorax and legs : Fore and mid tibiae with open tympanum, with 4–5 outer and mostly 4 inner spines, apical with a minute pair of spurs. Abdomen: Last tergite broad with deeply inwardly rounded posterior margin ( Fig. 2 C, D). Cerci differentiated into two lobes, outer one shovel-like expanded, inner one twisted into three-dimensional structured apex ( Fig. 2 C, D). Subgenital plate almost as long as broad with two flattened, lobe-like styli. Female. General body shape, size and colour as male. Ovipositor slender and smooth, only slightly up-curved. Subgenital plate at base very broad ( Fig. 8 G). Measurements males (n = 4) Body length 13–14.7 Median length of pronotum 4.2–4.5 Length of hind femur 7.6–8.3 Visible median length of elytra 2.6–3.6 females (n = 4) Body length 11.0–12.6 Median length of pronotum 3.5–4.0 Length of hind femur 8.7–9.2 Visible median length of elytra 3.2–3.5 Length of ovipositor 8.2–9.1 Habitat . Tree and bush layer in montane forest collected between 1700–2100 m .