Bioacoustics of Amytta digitata

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:496651 Holotype male, Tanzania , West Usambara Mountains, Lutindi Forest , 1300 m , December 2014 ; Depository MfN . Paratypes . 1 female , same data as holotype but January 2015 ; Depository MfN . Further paratype material: 5 males , 4 females , same data as holotype but October 2014 , January , March and October 2015 and June 2016 . Collection C. Hemp. Description. Male. General body shape and colour : Fully alate, small, elongated and of uniformly light yellowish-green colour. Behind eyes two lateral yellow lines, which continue along the whole length of pronotum. Head and antennae : Fastigium of vertex smooth conical, conus between eyes about half the size of first antennal segment. Antennae thin, whitish. Eyes brown-reddish, circular, prominent. Thorax and legs : Cuticle of pronotum shiny with few short scattered hairs. Tegmina and alae fully developed with median brown line along whole length where tegmina touch each other when folded ( Fig. 3 A). Stridulatory area hidden under flap-like elongated posterior margin of pronotum. Fore tibiae with oval and open tympanum, with 5 outer and 5 inner predatory spines, apical with a ventral minute pair of spurs. Mid tibiae mostly with 4–5 outer and 4–5 inner spines. Abdomen : Last tergite transverse and broad with posterior margin broadly incurved. Cerci expanded and shovel-like with subapical expansion, tips also expanded and in-curved ( Fig. 1 A). Near the base of each cercus finger-like process. Subgenital plate elongated, narrowing posteriorly; posterior margin forming two broad round lobes with longish and flattened styli. Female. As male, fully winged but without brown lines along costal margin of tegmina. Subgenital plate very broad, almost rhombic, broader than long ( Fig. 8 A). Ovipositor of female slender and smooth, only slightly upcurved. Measurements. males (n = 3) Body length 11.4–12.5 Median length of pronotum 3.7–4.0 Length of hind femur 7.8–8.5 Tegmina length 14.5–16.3 females (n = 2) Body length 10.1–10.9 Median length of pronotum 3.6–3.7 Length of hind femur 9.5–10.0 Length of elytra 18.0–19.0 Length of ovipositor 8.8–9.5 Habitat . Submontane forest.