Eoxizicus (Eoxizicus) curvicercus Wang, Liu, Li

Wang, Hanqiang, Liu, Xianwei & Li, Kai, 2015, New taxa of Meconematini (Orthoptera: Tettigoniidae: Meconematinae) from Guangxi, China, Zootaxa 3941 (4), pp. 509-541 : 518

Eoxizicus (Eoxizicus) curvicercus Wang, Liu, Li sp. nov.

( Figs. 17–21 )

Holotype ♂, paratype 2♂ 2♀, Maoer Mountain, Xing’an County, Guangxi province, alt. 1100–1700m, 2013. VII.30–VIII.6, leg. LIU Xian-Wei et al.; 1♀, Maoer Mountain, Xing’an County, Guangxi province, alt. 900–1500m, 1992. VIII.22–23, leg. LIU Xian-Wei & YIN Hai-Sheng.

Description Male. Body medium sized among this group. Fastigium of vertex conical, apex obtuse and dorsum grooved in the middle. Face not oblique at all, last two segments of maxillary palp almost of equal lengths. Pronotum high in profile: hind margin sinuated, humeral notch inconspicuous. Wings fully developed, hind wings longer than tegmina by about 1mm. Fore tibiae with inner and outer ventral spines of type 4, 5 (1, 1), outer 6 and inner 5 spines on ventral margin of each mid tibia, hind tibia bearing 24–26 small teeth each margin above also 3 pairs of apical spurs. Hind margin of 10th abdominal tergite with a pair of separated small tubercles. Cerci extremely bended, a flaky lobe occurred at inner base ( Fig. 18 ), apex rounded. Subgenital plate concave in hind margin, styli on apex. Genitalia totally membranous.

Female. Conical cerci small and short. Subgenital transverse, generally alike majority female of this genus, apical half with curving lateral edge, high and shallowly sunken in profile ( Fig. 20 ). Ovipositor as long as hind femora, ventral valve with an apical hook.

Coloration. Body pale green. Pronotum with paired darkish brown lateral stripes. Spines of hind tibia dark.

Diagnosis. This new species is similar to Eoxizicus (Eoxizicus) dao Gorochov, 1998 and Eoxizicus (Eoxizicus) duplum Gorochov, 1998 , but differs in size of body small, processes of male 10th abdominal tergite very indistinct ( Fig. 18 ) and cerci strongly curved ( Fig. 18 ); subgenital plate of female transverse and with curved lateral keels in apical half ( Fig. 20 ).

Measurements. Lengths in millimeter: body ♂10.0, ♀11.0–13.5; pronotum ♂3.6, ♀3.5; tegmina ♂18.0, ♀20.0; hind femora ♂10.0, ♀10.5; ovipositor ♀11.0.

Etymology. The specific epithet from Latin ‘curve’ + ‘cercus’, corresponding the feature of male upcurved cerci. The gender of the epithet is masculine.

Distribution. Guangxi (Maoer Mountain).

Figures

FIGURES 17 – 21. Eoxizicus (Eoxizicus) curvicercus sp. nov. 17. head and pronotum of male, lateral view; 18, 19. male abdomen terminal in rear lateral view and ventral view; 20, 21. female abdomen terminal in ventral view and lateral view.