Paragavialidium Zheng, 1994

Muhammad, Amira Aqilah, Tan, Ming Kai, Abdullah, Nurul Ashikin, Azirun, Mohammad Sofian, Bhaskar, Dhaneesh & Skejo, Josip, 2018, An annotated catalogue of the pygmy grasshoppers of the tribe Scelimenini Bolívar, 1887 (Orthoptera: Tetrigidae) with two new Scelimena species from the Malay Peninsula and Sumatra, Zootaxa 4485 (1), pp. 1-70 : 36

Genus Paragavialidium Zheng, 1994

Paragvialidium: Zheng 1994, Otte 1997, Jiang & Zheng 1998, Liang & Zheng 1998, Zheng 2005, Deng et al. 2007, Zheng & Cao 2011, Deng et al. 2012, Zha et al. 2016, Deng 2016, Skejo & Bertner 2017.

Type species: Paragavialidium curvispinum Zheng, 1994

Composition and distribution. This genus is endemic to PR China and includes 15 species distributed in Anhui ( P. anhuiensis , P. curvispinum ), Guangdond ( P. serrifemura ), Guangxi ( P. longzhouensis , P. serrimarginis , P. tridentatum ), Guizhou ( P. prominemarginatum ), Hainan ( P. hainanensis ), Jiangxi ( P. tenuifemura ), Sichuan ( P. emeiensis , P. sichuanensis ), Yunnan ( P. platynotum ), Zhejiang ( P. islandium , P. orthacanum ). For P. nodiferum comb nov. it is only known that it originates from N China, but the exact locality is not known.

Notes. This genus is composed of Chinese species of variable morphology. Members of the genus can have narrow or wide vertex, high or low projections, strongly toothed or weakly toothed femora ( Zha et al., 2016). Some species of the genus (e.g. P. platynotum ) have rather different morphology from the congeners. The genus fits typical Scelimenini characters, but since it is very heterogenous, it is in need of revision ( Skejo & Bertner 2017). Some species from this genus could be transferred to Platygavialidium and vice versa. Characters generally applicable to describe the genus are (I) extremely wide metalateral plate, (II) strong frontolateral projections directed forwards, (III) strong ventrolateral projections usually directed forwards and (IV) presence of medium sized digitate frontomedial projection directed upwards ( Deng et al., 2012). Platygavialidium nodiferum ( Walker, 1871) agrees in morphology with species from this genus much more than with that of its own genus, so the species is here transferred to this genus (= Paragavialidium nodiferum comb. nov.). It should be checked if any of the described Chinese species represents synonym of this described species that has not been reported since the description, and if Paragavialidium uvarovi (Günther, 1938) really represents synonym of this species. Because the genus has been reviewed a few times in last years ( Deng et al. 2012, Deng 2016), we just present list of the species included in the genus with type locality according to full authority.