Genus Eucriotettix Hebard, 1930

Eucriotettix Hebard, 1930: 573; Günther, 1938: 167; Kevan, 1966: 378; Steinmann, 1970: 224; Shishodia, 1991: 175; Blackish, 1992: 55; Ichikawa, 1994: 465; Otte, 1997: 76; Liang & Zheng, 1998: 85, 241; Zheng, 2005: 95, 453; Mahmood et al., 2007: 1282; Deng et al., 2012: 486; Li et al., 2014: 2084.

Systolotettix Hebard, 1930: 580 (type species: Criotettix exsertus Bolívar, 1902, by original designation); synonymized by Günther (1938).

Type species: Criotettix tricarinatus Bolívar, 1887, by original designation.

Notes. The diagnosis of the genus Eucriotettix and key to Chinese species are published recently (Deng et al., 2012; Li et al., 2014).

Composition and distribution. The genus currently consists of 38 described species (Hebard, 1930; Günther, 1938; Blackish, 1992; Zheng, 2005; Li et al., 2014; Storozhenko & Dawwrueng, 2015; Cigliano et al., 2016). Majority of them are the locally endemic (Zheng & Ou, 2001; Otte, 1997; Deng et al., 2012). Only seven species of Eucriotettix are more or less widely distributed in Asia: E. spinilobus (Hancock, 1904) is known from Sri Lanka and India, E. maculatus (Kirby 1914) from Myanmar and India, E. dohertyi (Hancock, 1915) from India and China, E. tricarinatus (Bolívar, 1887) from Sri Lanka, India, Malaysia and Philippines, E. grandis (Hancock, 1912) from India, Nepal, Thailand and China, E. oculatus (Bolívar, 1898) from Indonesia, Malaysia, Vietnam, China, Taiwan and Japan (Ryukyu Islands), and E. ridleyi Günther, 1938 is recorded from Singapore, China and Indonesia (Shishodia, 1991; Ichikawa, 1994; Blackish & Blackish, 1987; Liang & Zheng, 1998; Ingrisch, 2001; Mahmood at al., 2007; Kim & Pham, 2014; Storozhenko & Dawwrueng, 2015). Two new sympatric species of this genus are described from Singapore below.