Chrysacris lii, Yin, 2017

Yin, Zhan, 2017, A new species of the genus Chrysacris Zheng, 1983 from China (Orthoptera: Acridoidea, Acrididae), Zootaxa 4311 (3), pp. 443-446 : 443-445

Chrysacris lii sp. nov.

( Figs. A–L)

Holotype: ♂. Inner Mongolia: Xingan Meng, Zhalaiteqi , 1983-7-12, leg. Shen Xiang-Yang ; Paratype 1♂ Inner Mongolia: Xingan Meng, Zhalaiteqi , 1983-7-12, leg. Ge Fang . Paratypes 2 ♀♀, Inner Mongolia: Xingan Meng, Zhalaiteqi , 1983-7-12, leg. Ma Hui-Wen . Paratype 1 ♀, Inner Mongolia: Xingan Meng, Zhalaiteqi , 1983-7-12, leg. Zi Zhong . Paratype 1 ♀, Inner Mongolia: Xingan Meng, Zhalaiteqi , 1983-7-23, leg. Ge Fang . Paratype 1 ♀, Inner Mongolia: Xingan Meng, Zhalaiteqi , 1983-7-24, leg. Liu Qiang . Paratype 1 ♀, Inner Mongolia: Xingan Meng, Zhalaiteqi , 1983-7-31, leg. Liu Qiang . Paratype 1 ♀, Inner Mongolia: Xingan Meng, Zhalaiteqi , 1983-7-31, leg. Ma Hui-Wen.

Male (Figs A-H) Body medium in size. Head shorter than pronotum. Vertex angular, with median longitudinal keel. Frons oblique in profile. Frontal ridge downward broadened gradually to labrum. Eye ellipse, vertical diameter 1.5 times horizontal diameter and subocular furrow. Antennae ensiform, length of segment 1.8 times width in the middle. Median keel of pronotum cut by three transverse sulci, hind transverse sulcus placed after middle part, prozona 1.3 times metazona in length; lateral carinae curved slightly in the middle. Interspace of mesosternum narrow, length 1.5 times minimum width. Tegmina developed, extending over the end of hind femur, apical part rounded, median vein area with intercalary vein, maximum width of cubital area 2.0 times minimum width of median area. Hind femur robust, dorsal carina smooth, length 5.5 times its maximun width, knee lobe rounded at apex. Hind tibia with 13 spines on outer and inner sides, outer apical spine absent. Arolium of hind tarsus larger, reaching the apex of claw. Tympanum developed. Cercus conical, not reaching the end of epiproct. Furculae large. Subgenital plate longer, conical, apex downward. Epiphallus showing as Fig. G.

Female ( Figs I–L ) Body of medium size, stubby. Head large, shorter than pronotum. Frons extremely oblique in lateral view. Antennae ensiform, width larger than length distinctly in basal segment, length of a segment in the middle 1.2 times its width. Eyes oval, longitudinal diameter 1.4 times its horizontal diameter, and equal to subocular furrow. Prozona 1.5 times metazoan in length. Length of interspace between mesosternal lobes 1.5 times its minimum width; both metasternal lobes separated. Tegmina developed, surpassing apex of hind femur, apex rounded, maximum width of medial area, 1.9 times width of cubital area; medial area wider with intercalary veins. Wings equal tegmina in length. Hind femur symmetrical, length 5.0 times its width, upper and lower median carinae smooth, without fine serration, apex of lower lateral genicular lobes rounded. Outer side of hind tibia with 13 spines, inner side with 12 spines; outer apical spine absent. Ovipositor stubby, length of upper valve 3.3 times its width, both upper and lower valves with fine serrations on upper side and lower sides respectively. Cerci short and conical. Length of subgenital plate 2.0 times its width, posterior margin curved.

Body yellowish brown. Postocular band brown, wider, backward to hind margin of pronotum. Tegmina brown, with a white stripe at base. Hind femur brown. Hind tibia yellowish brown. Hind tarsus yellowish brown.

Measurement (mm): Length of body: ♂ 15.8–18.4, ♀ 24.6–27.5. Length of tegmen: ♂ 15.4–17.2, ♀ 16.8–19.4. Length of hind femur: ♂10.6–11.3, ♀ 10.6–12.5.

This species is similar to Chrysacris sinucarinata Zheng, 1988 . The major differences are listed in Table 1 .

Etymology: The species is derived from Prof. Hong-Chang Li for his contribution to entomology.

Figures

FIGURES. Chrysacris lii sp. nov. A. antennae ♂; B. body, in lateral view ♂; C. head and pronotum in dorsal view ♂; D. mesosternum ♂; E. terminalia of abdomen, in lateral view ♂; F. phallic complex; G. epiphallus; H. terminalia of abdomen, in dorsal view ♂; I. body, in lateral view, ♀; J. mesosternum ♀; K. end of abdomen, in lateral view ♀; L. end of abdomen, in ventral view ♀.