Locusta niponensis, (Haan, 1843)

Liu, Chun-Xiang, Heller, Klaus-Gerhard, Wang, Xue-Song, Yang, Zhen, Wu, Chao, Liu, Fei & Zhang, Tao, 2020, Taxonomy of a katydid genus Mecopoda Serville (Orthoptera: Tettigoniidae, Mecopodinae) from East Asia, Zootaxa 4758 (2), pp. 296-310 : 301

Species group niponensis (Haan, 1843)

Diagnosis (species group “a”). The species studied here within the species group possesses the widest tegmina, comparatively long files ( Fig. 5 a–f) and widest mirrors ( Fig. 6 a–e). The file is widest in middle, from which teeth are gradually narrowed toward both ends ( Fig. 5 a–f).

Bioacoustics. One song unit is composed of several continuous syllables ( Fig. 1 ). This species group possesses 5 song types ( Fig. 1 , Table 2). The song types of M. himalaya sp. nov. and M. marmorata He are distinguished from other three types by the repeated syllables without amplitude change ( Fig. 1 p–q, s–t). In the other three types, one song unit could be separated into three phases, i.e., low-amplitude beginning and ending phases, and high-amplitude middle climax ( Fig. 1 a–d, f–i, k–n).

Included taxa. M. niponensis ( East Asia), M. fallax He, 2019 ( China) , M. crescendo sp. n. ( China), M. himalaya sp. n. ( China), and M. tibetensis sp. n. ( China), and M. marmorata He, 2019 ( China) .

Figures

FIGURE 1. Calling songs of the species group niponensis. a–e: M. niponensis (Haan, 1843), f–j: M. fallax He, 2019, k–o: M. crescendo sp. nov., p–r: M. himalaya sp. nov.; s–u: M. marmorata He. Oscillogram of a song unit (a, f, k), the syllable groups in the beginning of a song unit (b, g, l), at the climax of a song unit (c, h, m), and at the end of a song unit (d, i, n); Oscillogram of unchanged continuous syllable groups (p), and neighboring syllable groups (q). The spectrum of the calling song (e, j, o, r, u).

FIGURE 5. Male stridulatory file under the left tegmen. a: M. niponensis (Haan, 1843); b: M. fallax He, 2019; c: M. crescendo sp. nov.; d: M. himalaya sp. nov.; f: M. tibetensis sp. nov.; f: M. marmorata He; g: M. confracta sp. nov.; h: M. synconfracta sp. nov.; i: Mecopoda_“S” (Sismondo 1990); j: Mecopda sp. from Vietnam; k: M. elongata elongata from India; l: M. minor minor subsp. nov.; m: M. m. yunnana subsp. nov..

FIGURE 6. Male right stridulatory apparatus on the right tegmen. a: M. niponensis (Haan, 1843); b: M. fallax He, 2019; c: M. crescendo sp. nov.; d: M. himalaya sp. nov.; f: M. tibetensis sp. nov.; f: M. marmorata He; g: M. confracta sp. nov.; h: M. synconfracta sp. nov.; i: Mecopoda_“S” (Sismondo 1990); j: Mecopda sp. from Vietnam; k: M. elongata elongata from India; l: M. minor minor subsp. nov.; m: M. m. yunnana subsp. nov..