Xiphidiopsis Redtenbacher, 1891

Gorochov, A. V., 2022, Taxonomy of the katydids (Orthoptera: Tettigoniidae) from East Asia and adjacent islands. Communication 15, Far Eastern Entomologist 459, pp. 1-26 : 14-15

Genus Xiphidiopsis Redtenbacher, 1891

NOTE. This genus was divided by Gorochov (1993) into five subgenera: nominotypical one; Euxiphidiopsis Gorochov, 1993 ; Paraxiphidiopsis Gorochov, 1993; Dinoxiphidiopsis

Gorochov, 1993; Zaxiphidiopsis Gorochov, 1993 . Later, Zaxiphidiopsis (Gorochov, 1998)

and Euxiphidiopsis (Liu & Zhang, 2000) were erected as separate genera, and in the latter paper, Paraxiphidiopsis was erroneously synonymized with Euxiphidiopsis . Moreover, Liu et al. (2010) also erroneously synonymized the generic name Paraxizicus Gorochov et Kang,

2005 with Euxiphidiopsis . Thus, the “genus” Euxiphidiopsis now contains 22 very different species (OSF), really belonging to a few unrelated genera. Here I consider Euxiphidiopsis stat.

resurr. as a subgenus of Xiphidiopsis s. l. again, restore Paraxiphidiopsis subgen. resurr. as a distinct subgenus of the latter genus, and propose a new generic replacement name (Caprixizicus

Gorochov, nom. n. originating from the species name “ capricercus ” and the generic name

“ Xizicus ”) for Paraxizicus (Gorochov et al., 2005) ; the latter name, restored here from synonyms of Euxiphidiopsis and Paraxiphidiopsis, is a junior homonym of Paraxizicus Liu,

2004 proposed for a subgenus of Xizicus s. l.

The above-mentioned representatives, attributed to the “genus” Euxiphidiopsis in OSF,

belong to the following genera and subgenera: Xiphidiopsis (Paraxiphidiopsis) zubovskyi

Gorochov, 1993 belongs to the same genus and subgenus as in its original description;

Xizicus (Eoxizicus) hainani Gorochov et Kang, 2005 and possibly Euxiphidiopsis quadridentata Liu et Zhang, 2000 belong to the subgenus Eoxizicus of the genus Xizicus ;

Xiphidiopsis forcipa Shi et Chen, 2002 and Paraxizicus singulus Shi, Bian et Chang, 2011

belong to the subgenus Furcixizicus of Xizicus s. l.; Xiphidiopsis capricercus Tinkham, 1943

and Paraxizicus brevicercus Gorochov et Kang, 2005 belong to the genus Caprixizicus nom.

n.; Xiphidiopsis gurneyi Tinkham, 1944 , X. lacusicercus Shi, Zheng et Jiang, 1995 ,

Paraxizicus spathulatus Mao et Shi, 2007 and P. trilobus Shi, Bian et Chang, 2011 belong to different and possibly undescribed genera of the subtribe Meconematina ; X. sinensis

Tinkham, 1944 and X. impressa Bey-Bienko, 1962 are described from females only, and their generic position is unclear, but the male, attributed to the first species by Mao & Shi

(2007), may belong to the genus Decma Gorochov, 1993 or to an undescrided genus of

Meconematina .

The following species are true or possible members of Euxiphidiopsis s. str. (only four of them were included in the “genus” Euxiphidiopsis in OSF) which is characterized by the posteromedian process of the male last tergite long and with a distinct inflation in the distal or middle parts, as well as by the male cercus rather simple (i.e. having two large distal lobes and often a small proximedial tubercle): Xiphidiopsis (E.) motshulskyi Gorochov, 1993 is type species of Euxiphidiopsis ; X. platycerca Bey-Bienko, 1962 was included in Euxiphidiopsis s.

str. by Gorochov (1998); X. altiterga Sänger et Helfert, 1998 ; X. tonicosa Shi et Chen, 2002 ;

X. compacta Sänger et Helfert, 2004 and Alloxiphidiopsis ovalis Liu et Zhang, 2007 are here included in Euxiphidiopsis s. str. for the first time; X. (E.?) eversmanni Gorochov, 1993, X.

(E.?) haudlata Gorochov, 1994 and X. nigrovittata Bey-Bienko, 1962 , described from females only, possibly belong to the same subgenus. Also it is useful to indicate that the two species, included in the genus Alloxiphidiopsis Liu et Zhang, 2007 (OSF), really belong to the nominotypical subgenus of Xiphidiopsis s. l.: X. (X.) irregularis Bey-Bienko, 1962, comb.

resurr. and X. (X.) longicauda (Liu et Zhang, 2007) , comb. n. The first of them has the posterior process of the male last tergite long and insignificantly inflated but asymmetrical (i.e. almost intermediate between those of Euxiphidiopsis and Xiphidiopsis s. str.).