Orthoptera: Tetrigidae: Scelimeninae) from Southeast Asia Новые И Малоизвестные Виды Рода Zhengitettix (Orthoptera: Tetrigidae: Scelimeninae) Из Юго-Восточной Азии

ZOOSYSTEMATICA ROSSICA, 22(2): 204–223 25 DECEMBER 2013

New and little-known species of the genus Zhengitettix (Orthoptera: Tetrigidae: Scelimeninae) from Southeast Asia Новые и малоизвестные виды рода Zhengitettix (Orthoptera: Tetrigidae: Scelimeninae) из Юго-Восточной Азии

S.YU. STOROZHENKO

С.Ю. СТОРОЖЕНКО

S.Yu. Storozhenko, Institute of Biology and Soil Science, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok 690022, Russia. E-mail: [email protected]

Seven new species of the genus Zhengitettix Liang, 1994 are described: Z. hosticus sp. nov., Z. mucronatus sp. nov. and Z. spinulentus sp. nov. from Vietnam; Z. albitarsus sp. nov. and Z. extraneus sp. nov. from Thailand; Z. palawanensis sp. nov. and Z. taytayensis sp. nov. from the Philippines. Two species, Z. curvispinus Liang, Jiang et Liu, 2007 and Z. obliquespicula Zheng et Jiang, 2005 are firstly recorded from Vietnam. An annotated check-list and key to species of the genus Zhengitettix are given. Position of Zhengitettix within the family Tetrigidae is briefly discussed. Описано семь новых для науки видов рода Zhengitettix Liang, 1994: Z. hosticus sp. nov., Z. mucronatus sp. nov. и Z. spinulentus sp. nov. из Вьетнама; Z. albitarsus sp. nov. и Z. extraneus sp. nov. из Таиланда; Z. palawanensis sp. nov. и Z. taytayensis sp. nov. из Филиппин. Два вида (Z. curvispinus Liang, Jiang et Liu, 2007 и Z. obliquespicula Zheng et Jiang, 2005) впервые указываются для Вьетнама. Приводится определительная таблица и аннотированный список видов рода Zhengitettix. Кратко обсуждается положение Zhengitettix в семействе Tetrigidae. Key words: pygmy grasshoppers, taxonomy, Vietnam, Thailand, Philippines, Orthoptera, Tet- rigidae, Scelimeninae, Zhengitettix, new species Ключевые слова: прыгунчики, таксономия, Вьетнам, Таиланд, Филиппины, Orthoptera, Tetrigidae, Scelimeninae, Zhengitettix, новые виды

INTRODUCTION Among more than two thousand specimens of Tetrigidae stored at the Zoological In- The monotypic genus Zhengitettix Li- stitute (St Petersburg, Russia), seven new ang, 1994 was established for Z. haina- species of Zhengitettix from Southeast Asia nensis Liang, 1994 from Hainan Island in and two species of the same genus described China (Liang, 1994). Up to now this genus from China but collected in Vietnam were includes six species distributed in South found. An annotated list of Zhengitettix spe- China (Zheng & Jiang, 2002; Zheng, 2005; cies with descriptions of new species and Zheng et al., 2005; Liang et al., 2007; Zheng new distribution data is given below. A new et al., 2010; Deng et al., 2010). Species of the key to the species is also provided. genus Zhengitettix are typical inhabitants of moist places in tropical rainforests, such MATERIALS AND METHODS as stones on banks of streams (Deng et al., 2010). The diagnosis of Zhengitettix and key Twenty five specimens of Zhengitettix to its species were given in two recent pa- species were collected in Vietnam, Thai- pers (Deng et al., 2010; Zheng et al., 2010). land and the Philippines by A. Gorochov,

V. Trjapitzyn, A. Grigorenko. N. Orlov, I. 2(5) Lower part of each lateral lobe of pronotum Darevsky, V. Tomkovich and L. Anisyut- with rather narrow and acute spine (Fig. 31). kin in 1986–2010. All the specimens are 3(4) Frontal ridge near base of antennae slightly dry and pinned. The examined material wider than width of first antennal segment. Prozona of pronotum transverse ...... (including holotypes and paratypes of new ...... Z. hainanensis species) are deposited at the Zoological In- 4(3) Frontal ridge near base of antennae 2–2.5 stitute of the Russian Academy of Sciences, times narrower than width of first antennal St Petersburg (ZIN). The morphological segment (Fig. 33). Prozona of pronotum lon- terminology follows Storozhenko & Paik gitudinal (Fig. 31) ...... (2007). Length of the body is measured ...... Z. palawanensis sp. nov. from the frontal ridge to the apex of the sub- 5(2) Lower part of each lateral lobe of pronotum genital plate. Width of the fastigium of the with broadly triangular projection ...... vertex is measured between the eyes at the ...... Z. triangularis 6(1) Sternites black or sometimes (in females of base of the lateral carinae of this fastigium. Z. extraneus sp. nov. only) black with indis- All other measurements are standardised as tinct yellowish spots. accepted for Tetrigidae. 7(24) Prozona of pronotum transverse (Figs 2, 7, 16, 23, 27). SYSTEMATICS 8(23) Lower part of each lateral lobe of pronotum with more or less long spine directed Order ORTHOPTERA Olivier, 1789 laterally (Figs 2, 9, 23, 36) or slightly curved forward (Figs 7, 16, 31). Family TETRIGIDAE Rambur, 1838 9(10) Visible part of tegmen distinctly narrower Subfamily SCELIMENINAE Bolívar, 1887 than mid femur ...... Z. nigrofemurus 10(9) Visible part of tegmen equal to mid femur Genus Zhengitettix Liang, 1994 in width, or distinctly broader. 11(14) Antennal sockets situated below ventral Zhengitettix Liang, 1994: 33; Liang & Zheng, margins of eyes (Fig. 11). Female subgeni- 1998: 75; Zheng, 2005: 49; Deng et al., 2010: tal plate with distinct longitudinal creases 46; Zheng et al., 2010: 1153. around the triangular posterior process; ba- Type species: Zhengitettix hainanensis sal part of this plate smooth (Figs 8, 15). Liang, 1994, by original designation. 12(13) Lower part of each lateral lobe of prono- Note. According to the recent system of tum with long spine somewhat curved for- Tetrigidae, the genus Zhengitettix is a mem- ward (Fig. 7). Hind tibiae ochrous with light basal part. Female sternites completely black ber of the subfamily Scelimeninae (Zheng, ...... Z. curvispinus 2005; Deng et al., 2010; Zheng et al., 2010), 13(12) Lower part of each lateral lobe of prono- closely related to the genera Hebarditet- tum with relatively short and almost straight tix Günther, 1938 and Eucriotettix Hebard, spine (Fig. 9). Hind tibiae blackish brown 1930 but easy distinguished from the two with yellowish ring in basal part. Female genera by a very narrow fastigium of the sternites black with indistinct yellowish me- vertex (its width is 1.7–2.4 times narrower dian spots ...... Z. extraneus sp. nov. than width of the eye from above; in Eucrio- 14(11) Antennal sockets situated between ventral margins of eyes (Figs 1, 18, 33, 38). Fe- tettix and Hebarditettix, this ratio is 1 and male subgenital plate smooth (Figs 20, 42) or 1.3–1.5, respectively). with transverse creases only (Fig. 6), or with Composition. Thirteen species in the longitudinal and transverse creases (Fig. 26). Oriental Region, including seven new spe- 15(16) Hind tarsi white. Female subgenital plate cies described below. with shallow transverse creases only (Fig. 6)...... Z. albitarsus sp. nov. Key to species of Zhengitettix 16(15) Hind tarsi light brown. Female subgenital plate smooth (Figs 20, 42) or with longi- 1(6) Sternites ochrous or brown. tudinal and transverse creases (Fig. 26).

17(18) Lateral ocelli placed below middle part of than width of one eye from above; median eyes (Fig. 22). Female subgenital plate with carina of fastigium reaching middle of eyes. longitudinal and transverse creases (Fig. 26). Eyes protruding above pronotum in lateral Ovipositor with upper valves blackish brown view and distinctly separated from anterior and lower valves light brown ...... margin of pronotum in dorsal view. Lateral ...... Z. mucronatus sp. nov. 18(17) Lateral ocelli placed between middle ocelli placed between middle parts of eyes. parts of eyes (Figs 18, 38). Female subgenital Frontal ridge in lateral view broadly round- plate smooth (Figs 20, 42). Upper and lower ed. Frontal ridge near base of antennae as valves of ovipositor light brown. wide as first antennal segment. Pronotum 19(20) Lower part of each lateral lobe of pro- in dorsal view with straight anterior mar- notum with relatively short spine slightly gin; posterior process of pronotum narrow curved forward (Fig. 16). Hind tibiae com- and very long, slightly surpassing apex of pletely black ...... Z. hosticus sp. nov. hind tibia. Median carina of pronotum in 20(19) Lower part of each lateral lobe of prono- profile low, almost straight. Lateral carinae tum with long and straight spine directed laterally (Fig. 36). Hind tibiae completely in prozona well defined; prozona transverse, brown or black with light rings. 1.5 times as wide as long. Dorsal surface of 21(22) Hind tibiae brown. Body larger: length of pronotum almost smooth, without oblique female pronotum 13.7–15.0 mm ...... carinulae. Hind margin of lateral lobes of ...... Z. spinulentus sp. nov. pronotum with tegminal (upper) sinus al- 22(21) Hind tibiae black with light base and ring most twice less deep than lower sinus; lower near middle. Body smaller: length of female part of lateral lobes of pronotum with short, pronotum 11.0 mm ...... Z. transpicula acute and almost straight spine. Tegmina 23(8) Lower part of each lateral lobe of pro- ovate; visible part of tegmen 2.4–2.6 times notum with short spine directed obliquely backward (Fig. 27) ...... Z. obliquespicula as long as wide and 1.1–1.25 times as wide 24(7) Prozona of pronotum longitudinal (Fig. as mid femur. Hind wings extending apex 43) ...... Z. taytayensis sp. nov. of posterior process of pronotum. Fore and mid femora with lower and upper edges Annotated list of Zhengitettix species straight; fore femur 4.2–4.3 times, mid fe- with descriptions of new taxa mur 4.2–4.4 times, and hind femur 3.3–3.4 times as long as wide. Dorsal part of hind tibia with 6 outer and 4–5 inner teeth. First Zhengitettix albitarsus sp. nov. tarsal segment of hind legs 1.1 times as long (Figs 1–6) as third one (without claws); ventral surface of this segment with three triangular pads Holotype. Male; Thailand, Nakhon Ratcha- (two basal pads slightly larger than apical sima Prov., environs of Khao Yai National Park, pad). Epiproct triangular. Subgenital plate 500–1000 m, 26 Oct.–4 Nov. 2000, A. Gorochov in ventral view with excised apex, 1.5–1.6 & L. Anisyutkin (ZIN). times as long as wide; in lateral view, sub- Paratypes. Thailand: 1 female, same data as for holotype (ZIN); 1 male, Mae Hong Son genital plate conical. Cerci with attenuated Prov., environs of Mae Yen Vill., 19°4´N, 98°5´E, apex, 2.5 times as long as wide near base. 560 m, Yellow Pans Forest, 18–24 Dec. 2010, General colouration of body blackish V. Tomkovich (ZIN). or yellowish brown. Head blackish from Description. Male. Body medium- above; eyes light brown; antennae brown. sized for this genus. Antennae filiform, Genae and frons blackish or light brown. 14–15-segmented, 2.1–2.4 times as long as Disc of pronotum and upper part of lateral fore femora; middle segments (6–8th) 7.2– lobes blackish or brown; lower part of lat- 8.8 times as long as wide. Antennal sockets eral lobes of pronotum yellowish brown. situated between ventral margins of eyes. Tegmina black, with yellowish veins. Hind Fastigium of vertex 2.0–2.4 times narrower wings black. Hind femora light brown with

Figs 1–6. Zhengitettix albitarsus sp. nov. 1, male head, frontal view; 2, female head and anterior part of pronotum, dorsal view; 3, female head and anterior part of pronotum, lateral view; 4, male hind tarsus, lateral view; 5, male apex of abdomen, ventral view; 6, female subgenital plate, ventral view. Scale bars: 1 mm. a few indistinct dark spots on most part of antennal segment. Median and lateral cari- outer side; lower part of outer side com- nae of pronotum as in male; prozona trans- pletely black but bordered by narrow yel- verse, 1.7 times as wide as long. Visible part lowish stripe along lower keel. Hind tibiae of tegmen 2.5 times as long as wide and 1.2 blackish, with brown ring in basal third. times as wide as mid femur; hind wings as Tarsal segments of hind legs white. Ster- in male. Fore femur 4.4 times, mid femur nites black. Ventral part of subgenital plate 4.6, hind femur 3.2 times as long as wide. light brown; dorsal part blackish. Epiproct Dorsal part of hind tibia with 6 outer and yellowish. Cerci brown. 5–7 inner teeth. Epiproct narrowly trian- Female. Shape and structure of body gular, with pointed apex. Subgenital plate similar to those of male. Antennae 15-seg- elongate, near middle with shallow trans- mented, middle (6–8th) segments of anten- verse creases; apex of plate with triangular nae 7.5–8.2 times as long as wide. Fastigium posterior process. Cerci as in male. Valves of vertex 2.2 times narrower than width of of ovipositor narrow, dentate; upper valve one eye from above. Width of frontal ridge 5.0 times and lower valve 6.75 times longer near base of antennae equal to width of first than their maximum width.

General colouration as in male. Sternites 400 m, tropical forest, 22–30 Oct. 1994, I. black; subgenital plate light brown with in- Darevsky (ZIN). distinct blackish marks. Ovipositor light Note. This species is characterised by brown, with blackish teeth. the lower part of lateral lobes of pronotum Length in mm. Body: male 7.8–8.7, fe- with acute spine distinctly curved forwards, male 8.0; pronotum: male 12.2–13.0, female by the base of antennae inserted slightly 13.7; antenna: male 4.0–4.1, female 4.3; teg- below the ventral margin of eyes, and by men: male 1.2–1.3, female 1.5; fore femur: specific armament of the female subgenital male 1.7–1.9, female 2.2; mid femur: male plate (Fig. 8). The studied female from Cen- 2.1–2.2, female 2.3; hind femur: male 5.3– tral Vietnam well agrees with the original 5.5, female 6.0; ovipositor 1.5. description of this species, except slightly Etymology. The species name is a combi- shorter spine on the lower part of lateral nation of the Latin word “album” (white) lobes of pronotum (Fig. 7), and is considered with the morphological term of Greek herein as conspecific with Z. curvispinus. origin “tarsus” (hand); this combination is Length in mm. Female from Vietnam: characterizing colour of the tarsal segments body 8.6; pronotum 11.1; antenna 4.0; teg- of hind legs. men 1.1; fore femur 2.1; mid femur 2.3; hind Distribution. Thailand: Nakhon Ratcha- femur 5.9; ovipositor 1.5. Specimens from sima Province, Mae Hong Son Province. South China (after Liang et al., 2007): body in male 6.2–7.6, in female 7.7–9.6; pronotum Zhengitettix curvispinus Liang, Jiang in male 9.6–11.2, in female 9.8–11.8; hind et Liu, 2007 femur in male 5.0–5.3, in female 5.6–5.9. (Figs 7, 8) Distribution. China: Guangxi Province. Vietnam: Nghe An Province (new record). Zhengitettix curvispinus Liang et al., 2007: 659, figs 1–3 (holotype – male, China: Guangxi Prov., Fangcheng, Shangyue; in Biology Mu- Zhengitettix extraneus sp. nov. seum, Zhongshan University, China); Deng (Figs 9–15) et al., 2010: 46; Zheng et al., 2010: 1155. Zhengitettix curvipinnus: Liang et al., 2007: 660 Holotype. Male; Thailand, Surat Thani Prov., (lapsus calami). 40 km SW of Phanom Town, environs of Khao Material examined. Vietnam: 1 female, Nghe Sok National Park, 20–29 July 1996, A. Goro- An Prov., 20–25 km W of Con Cuong Town, chov (ZIN).

Figs 7–8. Zhengitettix curvispinus, female from Vietnam. 7, anterior part of pronotum, dorsal view; 8, subgenital plate, ventral view. Scale bars: 1 mm.

Figs 9–15. Zhengitettix extraneus sp. nov. 9, male head and anterior part of pronotum, dorsal view; 10, male head and anterior part of pronotum, lateral view; 11, male head, frontal view; 12, male hind femur, lateral view; 13, male apex of abdomen, lateral view; 14, female hind tarsus, lateral view; 15, female subgenital plate, ventral view. Scale bars: 1 mm.

Paratypes. Thailand: 1 male and 2 females, ventral margins of eyes. Fastigium of ver- same data as for holotype (ZIN); 1 female, Phang tex 1.9–2.1 times narrower than width of Nga Prov., 25 km W of Phang Nga Town, 28 Dec. one eye from above; median carina of fasti- 1997, V. Grigorenko (ZIN). gium reaching posterior two thirds of eyes. Description. Male. Body large for this Eyes protruding above pronotum in lateral genus. Antennae filiform, 14-segmented, view and distinctly separated from anterior 1.7 times as long as fore femora; middle margin of pronotum in dorsal view. Lateral segments (6–8th) 6.5–7.0 times as long ocelli placed below middle parts of eyes. as wide. Antennal sockets situated below Frontal ridge in lateral view broadly round-

© 2013 Zoological Institute, Russian Academy of Scienсes, Zoosystematica Rossica 22(2): 204–223 210 S.YU. STOROZHENKO. NEW AND LITTLE KNOWN SPECIES OF ZHENGITETTIX ed. Frontal ridge near base of antennae as Female. Shape and structure of wide as first antennal segment. Pronotum body similar to those of male. Antennae in dorsal view with straight anterior mar- 16–17-segmented; middle segments of an- gin; posterior process of pronotum narrow, tennae 6.8–7.5 times as long as wide. Fasti- reaching apex of hind tibia. Median carina gium of vertex 1.7–2.0 times narrower than of pronotum in profile low, almost straight. width of one eye from above. Frontal ridge Lateral carinae in prozona well defined; near base of antennae equal to first antennal prozona transverse, 1.6–1.8 times as wide segment in width. Median and lateral cari- as long. Dorsal surface of pronotum almost nae of pronotum as in male; prozona trans- smooth; oblique carinulae developed. Hind verse, 1.5–1.6 times as wide as long. Vis- margin of lateral lobes of pronotum with ible part of tegmen 2.8–3.0 times as long as deep tegminal sinus; lower part of lateral wide and equal to mid femur in width. Hind lobes pronotum with relatively short and wings as in male. Fore femur 4.4–4.6 times, almost straight spine. Tegmina ovate; vis- mid femur 4.6–5.0, hind femur 3.2–3.6 ible part of tegmen 2.4 times as long as wide times as long as wide. Dorsal part of hind and 1.25 times as wide as mid femur. Hind tibia with 4–6 outer and 3–4 inner teeth. wings extending apex of posterior process Epiproct narrowly triangular, with pointed of pronotum. Fore and mid femora with apex. Subgenital plate elongate, with dis- lower and upper edges straight; fore femur tinct longitudinal creases around triangular 4.75–5.0 times, mid femur 5.2–5.3, and hind posterior process. Cerci as in male. Valves femur 3.4–3.5 times as long as wide. Dorsal of ovipositor narrow, dentate; upper valve part of hind tibia with 4 outer and 4–5 inner 4.7–5.1 times and lower valve 6.0–6.8 times teeth. First tarsal segment of hind legs 1.1 longer than their maximum width. times shorter than third one; ventral surface General colouration as in male. Sternites of first segment with three triangular pads and subgenital plate black with indistinct (two basal pads slightly shorter than apical yellowish spots. Ovipositor yellowish, with pad). Epiproct triangular. Subgenital plate brown teeth. in ventral view with excised apex, 1.5 times Length in mm. Body: male 7.9–8.5, fe- as long as wide; in lateral view, subgenital male 8.4–9.5; pronotum: male 11.2–12.0, plate conical. Cerci conical, 2.3 times as female 12.6–13.4; antenna: male 3.5, female long as wide near base. 3.7–3.8; tegmen: male 1.2, female 1.4–1.5; General colouration of body black- fore femur: male 1.9–2.0, female 2.2–2.3; ish brown. Head blackish from above; eyes mid femur: male 2.1, female 2.3–2.5; hind brown; antennae light brown. Genae and femur: male 5.3–5.4, female 6.2–6.4; ovi- frons blackish brown. Disc of pronotum blackish with numerous small yellow spots; positor 1.3–1.5. upper part of lateral lobes blackish; lower Etymology. The species name is the Latin part of lateral lobes yellowish. Tegmina light adjective “extraneus” (marginal). brown, with black dots between veins. Hind Distribution. Thailand: Surat Thani wings black. Hind femora light brown with Province, Phang Nga Province. a few indistinct dark spots on most part of outer side; lower part of outer side black Zhengitettix hainanensis Liang, 1994 with light brown spot behind middle and Zhengitettix hainanensis Liang, 1994: 33, figs 1–4 narrow light brown stripe along lower keel. (holotype – male, China: Hainan Province, Hind tibiae blackish brown, with yellowish Hainan I., Janfengling; in Biology Museum, ring in basal third. Tarsal segments of hind Zhongshan University, China); Liang & legs light brown. Sternites black. Ventral and Zheng, 1998: 75, figs 52 a–d; Zheng, 2005: dorsal parts of subgenital plate light brown. 49, 51; Deng et al., 2010: 46; Zheng et al., Epiproct yellowish brown. Cerci brown. 2010: 1154.

Length (in mm). Body: male 6.2–7.6, ment of hind legs 1.1 times as long as third female 7.7–9.6; pronotum: male 9.6–11.2, one; ventral surface of first segment with female 9.8–11.8; hind femur: male 5.0–5.3, three triangular pads equal to each other in female 5.6–5.9 (after Liang & Zheng, 1998). size. Epiproct triangular. Subgenital plate Distribution. China: Hainan Island. in ventral view with excised apex, 2.0 times as long as wide; in lateral view, this plate Zhengitettix hosticus sp. nov. conical. Cerci conical, 2.2 times as long as (Figs 16–21) wide near base. General colouration of male body brown. Holotype. Male; Vietnam: Cao Bang Prov., Head from above blackish brown; eyes and Nguen Binh Distr., Quang Thanh Vill., 4–13 antennae light brown. Genae and frons light May 1998, N. Orlov (ZIN). brown. Disc of pronotum brown; upper part Paratypes. Vietnam: 3 females, same data as for holotype (ZIN). of lateral lobes blackish brown; lower part of Description. Male. Body large for this lateral lobes light brown. Tegmina blackish. genus. Antennae filiform, 14-segmented, Hind wings black. Hind femora brown with 2.2 times as long as fore femora; middle a few indistinct light brown spots on most segments (6–8th) 7.5–9.0 times as long as part of outer side; lower part of outer side wide. Antennal sockets situated between black with narrow light stripe along lower ventral margins of eyes. Fastigium of ver- keel. Hind tibiae black. Tarsal segments tex 2.2 times narrower than width of one of hind legs light brown. Sternites black. eye from above; median carina of fasti- Ventral and dorsal parts of subgenital plate gium reaching posterior two thirds of eye. light brown. Epiproct and cerci brown. Eyes protruding above pronotum in lateral Female. Shape and structure of body view and distinctly separated from anterior similar to those of male. Antennae 15-seg- margin of pronotum in dorsal view. Lateral mented; middle segments of antennae ocelli placed between middle parts of eyes. 7.5–8.8 times as long as wide. Fastigium Frontal ridge in lateral view broadly round- of vertex 1.7–2.0 times narrower than one ed. Frontal ridge near base of antennae 1.2 eye from above. Frontal ridge near base of times narrower than first antennal segment. antennae 1.1–1.2 times narrower than first Pronotum in dorsal view with straight an- antennal segment. Median and lateral cari- terior margin; posterior process of prono- nae of pronotum as in male; prozona trans- tum reaching middle of hind tibia. Median verse, 1.3–1.4 times as wide as long. Visible carina of pronotum in profile low, almost part of tegmen 2.4–2.6 times as long as wide straight. Lateral carinae in prozona well de- and 1.2–1.3 times as wide as mid femur. fined; prozona transverse, 1.4 times as wide Hind wings as in male. Fore femur 4.4–5.0 as long. Dorsal surface of pronotum almost times, mid femur 4.9–5.6, hind femur 3.1– smooth; oblique carinulae weak. Hind mar- 3.4 times as long as wide. Doral part of hind gin of lateral lobes of pronotum with deep tibia with 5–6 outer and 4–6 inner teeth. tegminal sinus; lower part of lateral lobes of Epiproct narrowly triangular, with pointed pronotum with acute spine slightly curved apex. Subgenital plate smooth, elongate, forwards. Tegmina ovate; visible part of teg- with strong triangular posterior process. men 2.2 times as long as wide and 1.5 times Cerci conical, 2.4–2.7 times as long as wide as wide as mid femur. Hind wings extending near base. Valves of ovipositor narrow, den- apex of posterior process of pronotum. Fore tate; upper valve 3.9–4.6 times and lower and mid femora with lower and upper edges valve 6.1–6.2 times longer than their maxi- straight; fore femur 5.0 times, mid femur mum width. 5.5 times, and hind femur 3.2 times as long General colouration as in male. Sternites as wide. Dorsal part of hind tibia with 5–6 black. Subgenital plate light brown. Ovi- outer and 5–6 inner teeth. First tarsal seg- positor light brown, with brown teeth.

Figs 16–21. Zhengitettix hosticus sp. nov. 16, male head and anterior part of pronotum, dorsal view; 17, male head and anterior part of pronotum, lateral view; 18, male head, frontal view; 19, male hind tarsus, lateral view; 20, female apex of abdomen, ventral view; 21, female apex of abdomen, lateral view. Scale bars: 1 mm.

Length in mm. Body: male 8.5, female Distribution. Vietnam: Cao Bang Prov- 9.0–9.9; pronotum: male 11.2, female 11.0– ince. 14.3; antenna: male 4.5, female 4.3–4.6; tegmen: male 1.3, female 1.2–1.5; fore femur: Zhengitettix mucronatus sp. nov. male 2.0, female 2.2–2.3; mid femur: male (Figs 22–26) 2.2, female 2.2–2.5; hind femur: male 5.5, female 6.1–6.7; ovipositor 1.6–1.7. Holotype. Male; Vietnam, Vinh Phu Prov., Etymology. The species name is the Latin Tam Dao National Park, 900–1000 m, 9–18 Nov. adjective “hosticus” (alien). 1990, A. Gorochov (ZIN).

Figs 22–26. Zhengitettix mucronatus sp. nov. 22, male head, frontal view; 23, female head and anterior part of pronotum, dorsal view; 24, female head and anterior part of pronotum, lateral view; 25, female hind tarsus, lateral view; 26, female subgenital plate, ventral view. Scale bars: 1 mm.

Paratype. Vietnam: female, same data as for below middle part of eyes. Frontal ridge in holotype (ZIN). lateral view broadly rounded. Frontal ridge Description. Male. Body large for this near base of antennae 1.4 times narrower genus. Antennal sockets situated between than first antennal segment. Pronotum in ventral margins of eyes (antennae, except- dorsal view with straight anterior margin; ing two basal segments, broken). Fastigium posterior process of pronotum reaching apex of vertex 1.9 times narrower than one eye of hind tibia. Median carina of pronotum in from above; median carina of fastigium profile low, almost straight. Lateral carinae reaching middle of eyes. Eyes distinctly in prozona well defined; prozona transverse, protruding above pronotum in lateral view 1.5 times as wide as long. Dorsal surface and separated from anterior margin of pro- of pronotum rugous; oblique carinulae un- notum in dorsal view. Lateral ocelli placed developed. Hind margin of lateral lobes of

© 2013 Zoological Institute, Russian Academy of Scienсes, Zoosystematica Rossica 22(2): 204–223 214 S.YU. STOROZHENKO. NEW AND LITTLE KNOWN SPECIES OF ZHENGITETTIX pronotum with deep tegminal sinus; lower of hind tibia with 5 outer and 4 inner teeth. part of lateral lobes of pronotum with long Epiproct narrowly triangular, with pointed and straight spine. Tegmina ovate; visible apex. Subgenital plate elongate, with shal- part of tegmen 2.6 times as long as wide and low transverse creases in basal part and dis- 1.1 times as wide as mid femur. Hind wings tinct longitudinal creases around posterior slightly (0.5 mm) not reaching apex of pos- process; apex of this process broadly round- terior process of pronotum. Fore and mid ed. Cerci conical, 2.0 times as long as wide femora with lower and upper edges straight; near base. Valves of ovipositor narrow, den- fore femur 6.0 times, mid femur 5.3 times, tate; upper valve 4.3 times and lower valve and hind femur 3.5 times as long as wide. 7.1 times longer than their maximum width. Dorsal part of hind tibia with 5–6 outer and General colouration as in male. Sternites 4–5 inner teeth. First tarsal segment of hind and subgenital plate black. Epiproct light legs 1.1 times as long as third one; ventral brown. Cerci blackish brown. Upper valvae surface of first segment with three triangu- of ovipositor blackish brown; lower valvae lar pads (two basal pads shorter than apical light brown. pad). Epiproct triangular. Subgenital plate Length in mm. Body: male 8.5, female 8.6; in ventral view with narrowly excised apex, pronotum: male 12.2, female 12.5; antenna, 1.6 times as long as wide; in lateral view, female 4.9; tegmen: male 1.3, female 1.5; fore this plate conical. Cerci conical, 2.3 times as femur: male 2.4, female 2.6; mid femur: male long as wide near base. 2.4, female 2.6; hind femur: male 5.8, female General colouration of male body black- 6.6; ovipositor 1.3. ish brown. Head from above black; eyes Etymology. The species name is the Latin blackish brown; two basal segments of an- adjective “mucronatus” (sharp-pointed). tennae light brown. Genae and frons black. Distribution. Vietnam: Vinh Phu Prov- Disc of pronotum blackish brown; lateral ince. lobes blackish brown; spine on these lobes light brown with dark brown apex. Tegmina Zhengitettix nigrofemurus Deng, Zheng black with brown veins. Hind wings black. et Wei, 2010 Hind femora light brown with upper part of outer side brown and lower part of outer Zhengitettix nigrofemurus Deng et al., 2010: 47, figs 1–2 (holotype – male, China: Guizhou side completely black. Hind tibiae brown. Prov., Yaoren Mt., Sandu; in Institute of Zo- Tarsal segments of hind legs light brown. ology, Shaanxi Normal University, China); Sternites black. Ventral and dorsal parts Zheng et al., 2010: 1155. of subgenital plate light brown. Epiproct brown. Cerci light brown. Note. Up to now, only two males (holo- Female. Shape and structure of body type and paratype) of this species from its similar to those of male. Antennae 15-seg- type locality are known. Female unknown. mented; middle segments of antennae Length in mm. Male: body 6.5–7.0; pronotum 9.0–9.5; hind femur 4.5–5.0 (after 5.6–7.0 times as long as wide. Fastigium Deng et al., 2010). of vertex 2.0 times narrower than one eye Distribution. China: Guizhou Province. from above. Frontal ridge near base of antennae 1.6 times narrower than first antennal segment. Median and lateral carinae of Zhengitettix obliquespicula Zheng, Jiang pronotum as in male; prozona transverse, et Liu, 2005 1.3 times as wide as long. Visible part of teg- (Figs 27–30) men 3.0 times as long as wide and egual to Zhengitettix obliquespicula Zheng et al., 2005: mid femur in width. Hind wings as in male. 175, figs 1–3 (holotype – female, China: Fore femur 5.2 times, mid femur 5.2, hind Guangxi Prov., Tianlin; in Institute of Zool- femur 3.5 times as long as wide. Dorsal part ogy, Shaanxi Normal University, China);

Figs 27–30. Zhengitettix obliquespicula, male from Vietnam. 27, head and anterior part of pronotum, dorsal view; 28, head and anterior part of pronotum, lateral view; 29, head, frontal view; 30, apex of abdomen, lateral view. Scale bars: 1 mm.

Zheng, 2005: 50, figs 104–106; Deng et al., 2010: middle of eyes. Eyes distinctly protruding 46; Zheng et al., 2010: 1155. above pronotum in lateral view and sepa- Material examined. Vietnam: 1 male, Thai rated from anterior margin of pronotum in Nguyen Province, Dong Luong, 20 June 1986, V. dorsal view. Lateral ocelli placed between Trjapitzyn (ZIN). middle parts of eyes. Frontal ridge in lateral Note. This species was described from view broadly rounded. Frontal ridge near two females (holotype and paratype) dis- base of antennae 1.7 times narrower than tinguished from the other congeners by the first antennal segment. Pronotum in dorsal lower part of lateral lobes of pronotum with view with straight anterior margin; poste- a short oblique spine directed backwards. rior process of pronotum reaching middle The studied male from North Vietnam is of hind tibia. Median carina of pronotum in very similar to the females from South Chi- profile low, almost straight. Lateral carinae na in the shape of lateral lobes of pronotum in prozona well defined; prozona transverse, and is considered herein as conspecific with 1.4 times as wide as long. Dorsal surface of Z. obliquespicula. Description of a previous- pronotum almost smooth; oblique carinulae ly unknown male is given below. undeveloped. Hind margin of lateral lobes Description. Male. Body small for this of pronotum with deep tegminal sinus; genus. Antennae filiform, 14-segmented, lower part of lateral lobes of pronotum with 2.2 times as long as fore femora; middle acute spine directed backwards. Tegmina segments (6–8th) 7.3–8.7 times as long as ovate; visible part of tegmen 2.4 times as wide. Antennal sockets situated between long as wide and 1.1 times as wide as mid fe- ventral margins of eyes. Fastigium of ver- mur. Hind wings reaching apex of posterior tex 1.7 times narrower than one eye from process of pronotum. Fore and mid femora above; median carina of fastigium reaching with lower and upper edges straight; fore

© 2013 Zoological Institute, Russian Academy of Scienсes, Zoosystematica Rossica 22(2): 204–223 216 S.YU. STOROZHENKO. NEW AND LITTLE KNOWN SPECIES OF ZHENGITETTIX femur 4.5 times, mid femur 5.0 times, and above; median carina of fastigium reaching hind femur 3.1 times as long as wide. Dorsal middle of eyes. Eyes protruding above pro- part of hind tibia with 5–6 outer and 5–7 notum in lateral view and contacting with inner teeth. First tarsal segment of hind legs anterior margin of pronotum in dorsal view. 1.1 times as long as third one; ventral sur- Lateral ocelli placed between middle parts face of first segment with three triangular of eyes. Frontal ridge in lateral view broadly pads almost equal to each in size. Epiproct rounded; this ridge near base of antennae triangular. Subgenital plate in ventral view 2.0–2.5 times narrower than first anten- with narrowly excised apex, 2.0 times as nal segment. Pronotum in dorsal view with long as wide; in lateral view, this plate coni- straight anterior margin; posterior process cal. Cerci conical, 2.5 times as long as wide of pronotum reaching middle of hind tibia. near base. Median carina of pronotum in profile low, General colouration of male body brown. almost straight. Lateral carinae in prozona Head from above brown; eyes and antennae well defined; prozona longitudinal, 1.2–1.3 light brown. Genae and frons light brown. times as long as wide. Dorsal surface of pro- Disc of pronotum brown; upper part of lat- notum finely punctured; oblique carinulae eral lobes blackish brown; lower part of lat- distinct. Hind margin of lateral lobes of eral lobes light brown. Tegmina brown with pronotum with deep tegminal sinus; lower black stripe along lower (anterior) margin. part of lateral lobes of pronotum with acute Hind wings black. Hind femora brown; low- spine slightly curved forwards. Tegmina er part of outer side black with narrow light ovate; visible part of tegmen 2.7–3.6 times stripe along lower keel. Hind tibiae brown. as long as wide and 1.1–1.3 times narrower Tarsal segments of hind legs light brown. than mid femur. Hind wings slightly (0.5 Sternites black. Subgenital plate, epiproct mm) not reaching apex of posterior process and cerci light brown. of pronotum. Fore and mid femora with Length in mm. Male from Vietnam: body lower and upper edges straight; fore femur 8.6; pronotum 9.8; antenna 4.0; tegmen 1.1; 4.0–4.3 times, mid femur 4.3–4.7 times, and fore femur 1.8; mid femur 2.03; hind fe- hind femur 3.1–3.2 times as long as wide. mur 5.3. Females from China (after Zheng, Dorsal part of hind tibia with 4–5 outer 2005): body 8.0–9.0; pronotum 10.5–11.0; and 3–6 inner teeth. First tarsal segment hind femur 6.0. of hind legs 1.2–1.3 times as long as third Distribution. China: Guangxi Province. one; ventral surface of first segment with Vietnam: Thai Nguyen Province (first re- three pads (two basal pads slightly wider cord). than apical pad). Epiproct narrowly triangular, with pointed apex. Subgenital plate Zhengitettix palawanensis sp. nov. smooth, elongate, with trapezoidal poste- (Figs 31–35) rior process. Cerci conical, 1.8–2.3 times as long as wide near base. Valves of ovipositor Holotype. Female; Philippines, south part of Palawan I., east coast, environs of Brooke’s Point narrow, dentate; upper valve 4.2–4.6 times Town, 6–8 March 2004, A. Gorochov (ZIN). and lower valve 7.8–8.0 times longer than Paratypes. Philippines: 2 females, same data their maximum width. as for holotype (ZIN). General colouration of female body Description. Female. Body small for this brown. Head from above brown; eyes and genus. Antennae filiform, 16-segmented, antennae light brown. Genae and frons 1.9–2.3 times as long as fore femora; mid- brown. Disc of pronotum brown; upper part dle segments (6–8th) 4.6–6.3 times as long of lateral lobes blackish brown, lower part as wide. Antennal sockets situated between of lateral lobes light brown with brown api- ventral margins of eyes. Fastigium of vertex ces of spines. Tegmina brown. Hind wings 1.8–2.0 times narrower than one eye from black. Hind femora light brown; lower part

Figs 31–35. Zhengitettix palawanensis sp. nov., female. 31, head and anterior part of pronotum, dorsal view; 32, head and anterior part of pronotum, lateral view; 33, head, frontal view; 34, hind tarsus, lateral view; 35, subgenital plate, ventral view. Scale bars: 1 mm. of outer side brown. Hind tibiae brown. Tar- Description. Male. Body large for this sal segments of hind legs whitish. Sternites genus. Antennae filiform, 14–15-segment- brown. Subgenital plate, epiproct, cerci and ed, 1.9–2.0 times as long as fore femora; ovipositor light brown. middle segments (6–8th) 7.5–8.3 times as Male unknown. long as wide. Antennal sockets situated be- Length in mm. Female: body 6.0–6.2; tween ventral margins of eyes. Fastigium pronotum 8.4–9.0; antenna 3.2–3.9; tegmen of vertex 1.7–1.9 times narrower than one 1.1; fore femur 1.6–1.7; mid femur 1.7–1.9; eye from above; median carina of fastigium hind femur 5.0–5.1; ovipositor 1.1. reaching posterior margin of eyes. Eyes Etymology. The species is named after its distinctly protruding above pronotum in type locality, Palawan Island. lateral view and separated from anterior Distribution. The Philippines: Palawan margin of pronotum in dorsal view. Lat- Island. eral ocelli placed between middle parts of eyes. Frontal ridge in lateral view broadly rounded. Frontal ridge near base of anten- Zhengitettix spinulentus sp. nov. nae 1.5 times narrower than first antennal (Figs 36–42) segment. Pronotum in dorsal view with Holotype. Male; Vietnam, Hoa Binh Prov., straight anterior margin; posterior process environs of Mai Chau Town, 30 Oct.–4 Nov. of pronotum reaching middle of hind tibia. 1990, A. Gorochov (ZIN). Median carina of pronotum in profile low, Paratypes. Vietnam: 1 male and 2 females, almost straight. Lateral carinae in prozona same data as for holotype (ZIN). well defined; prozona transverse, 1.4 times

Figs 36–42. Zhengitettix spinulentus sp. nov. 36, male head and anterior part of pronotum, dorsal view; 37, male head and anterior part of pronotum, lateral view; 38, male head, frontal view; 39, male fore leg, lateral view; 40, male mid femur, lateral view; 41, male hind tarsus, lateral view; 42, female subgenital plate, ventral view. Scale bars: 1 mm. as wide as long. Dorsal surface of pronotum long as wide. Dorsal part of hind tibia with rugous; oblique carinulae distinct. Hind 4–7 outer and 4–5 inner teeth. First tarsal margin of lateral lobes of pronotum with segment of hind legs equal to third one; ven- deep tegminal sinus; lower part of lateral tral surface of first segment with three tri- lobes of pronotum with long straight spine. angular pads (two basal pads shorter than Tegmina ovate; visible part of tegmen 2.3– apical pad). Epiproct triangular. Subgenital 2.4 times as long as wide and 1.1–1.3 times plate in ventral view with narrowly excised as wide as mid femur; hind wings reaching apex, 1.7 times as long as wide; in lateral apex of posterior process of pronotum. Fore view, this plate conical. Cerci conical, 2.3 and mid femora with lower and upper edges times as long as wide near base. straight; fore femur 5.5 times, mid femur General colouration of body blackish 4.5–5.1 times, and hind femur 3.5 times as brown. Head from above black; eyes black-

© 2013 Zoological Institute, Russian Academy of Scienсes, Zoosystematica Rossica 22(2): 204–223 S.YU. STOROZHENKO. NEW AND LITTLE KNOWN SPECIES OF ZHENGITETTIX 219 ish brown; antennae light brown. Genae Zhengitettix taytayensis sp. nov. and frons black. Disc of pronotum blackish (Figs 43–47) brown; lateral lobes blackish brown with light brown spines. Tegmina black with Holotype. Male; Philippines: north part of Palawan I., east coast, environs of Taytay Town, brown veins. Hind wings black. Hind femo- 25–26 Feb. 2004, A. Gorochov (ZIN). ra light brown; upper part of outer side with Description. Male. Body small for this brown marks; lower outer side completely genus. Antennae filiform, 16-segmented, black. Hind tibiae brown. Tarsal segments 2.1 times as long as fore femora; middle of hind legs light brown. Sternites black. segments (6–8th) 5.5–6.5 times as long as Ventral and dorsal parts of subgenital plate wide. Antennal sockets situated between light brown. Epiproct and cerci light brown. ventral margins of eyes. Fastigium of vertex Female. Shape and structure of body 1.8 times narrower than one eye from above; similar to those of male. Antennae 15-seg- median carina of fastigium reaching middle mented; middle segments of antennae of eyes. Eyes protruding above pronotum 6.8–8.0 times as long as wide. Fastigium in lateral view and separated from anterior of vertex 1.8–1.9 times narrower than one margin of pronotum in dorsal view. Lateral eye from above. Frontal ridge near base of ocelli placed between middle parts of eyes. antennae 1.6–1.7 times narrower than first Frontal ridge in lateral view broadly round- antennal segment. Median and lateral cari- ed; this ridge near base of antennae 2.0 nae of pronotum as in male; prozona trans- times narrower than first antennal segment. verse, 1.4–1.5 times as wide as long. Visible Pronotum in dorsal view with straight an- part of tegmen 2.7–2.8 times as long as wide terior margin; posterior process of prono- and 1–1.2 times as wide as mid femur. Hind tum reaching middle of hind tibia. Median wings as in male. Fore femur 4.8–5.4 times, carina of pronotum in profile low, almost mid femur 4.7–5.6, hind femur 3.4–3.7 straight. Lateral carinae in prozona well times as long as wide. Dorsal part of hind defined; prozona longitudinal, 1.2 times as tibia with 4–6 outer and 5 inner teeth. long as wide. Dorsal surface of pronotum Epiproct narrowly triangular, with pointed finely punctured; oblique carinulae distinct. apex. Subgenital plate smooth, elongate, Hind margin of lateral lobes of pronotum with triangular posterior process. Cerci with deep tegminal sinus; lower part of lat- conical, 1.8 times as long as wide near base. eral lobes pronotum with acute and almost Valves of ovipositor narrow, dentate; up- straight spine. Tegmina ovate; visible part per valve 4.6–4.7 times and lower valve 7.5 of tegmen 3.0 times as long as wide and 1.3 times longer than their maximum width. times narrower than mid femur. Hind wings General colouration as in male. Ster- slightly (0.5 mm) not reaching apex of pos- nites black. Subgenital plate light brown. terior process of pronotum. Fore and mid Epiproct brown. Cerci blackish brown. femora with lower and upper edges straight; Ovipositor light brown. fore femur 4.3 times, mid femur 4.0 times, Length in mm. Body: male 8.1–8.5, fe- and hind femur 3.0 times as long as wide. male 9.7–10.8; pronotum: male 11.0–11.5, Dorsal part of hind tibia with 3–4 outer female 13.7–15.0; antenna: male 4.2–4.3, and 3–4 inner teeth. First tarsal segment of female 4.5–4.8; tegmen: male 1.2–1.4, fe- hind legs 1.2 times as long as third one; ven- male 1.6–1.7; fore femur: male 2.2, female tral surface of first segment with three pads 2.5–2.7; mid femur: male 2.1–2.3, female (two basal pads slightly wider than apical 2.5–2.8; hind femur: male 5.5, female 6.5– pad). Epiproct triangular. Subgenital plate 7.1; ovipositor 1.6–1.7. in ventral view with narrowly excised apex, Etymology. The species name is the Latin 1.6 times as long as wide; in lateral view, adjective “spinulentus” (spiny). this plate conical. Cerci conical, 1.5 times as Distribution. Vietnam: Hoa Binh Province. long as wide near base.

Figs 43–47. Zhengitettix taytayensis sp. nov., male. 43, head and anterior part of pronotum, dorsal view; 44, head, frontal view; 45, hind tarsus, lateral view; 46, apex of abdomen, ventral view; 47, apex of abdomen, lateral view. Scale bars: 1 mm.

General colouration of body blackish Zoology, Shaanxi Normal University, Chi- brown. Head from above blackish; eyes and na); Zheng, 2005: 49, figs 100–103; Liang et antennae brown. Genae and frons blackish. al., 2007: 660; Deng et al., 2010: 46; Zheng et Disc of pronotum blackish brown; lateral al., 2010: 1155. lobes blackish brown; spines on these lobes Note. This species was described from brown. Tegmina black with brown veins. the holotype only. Male unknown. Hind wings black. Hind femora brown; Length in mm. Female: body 8.0; prono- lower part of outer side black. Hind tibiae tum 11.0; hind femur 6.0 (after Zheng & Ji- blackish. Tarsal segments of hind legs whit- ang, 2002). ish. Sternites black. Subgenital plate and Distribution. China: Guangxi Province. epiproct pale brown. Cerci black. Female unknown. Zhengitettix triangularis Zheng, Zeng Length in mm. Male: body 7.5; pronotum et Ou, 2010 10.5; antenna 3.6; tegmen 1.0; fore femur 1.7; mid femur 1.8; hind femur 4.8. Zhengitettix triangularis Zheng et al., 2010: 1154, Etymology. The species is named after its figs 1 A, B (holotype – male, China: Yunnan type locality, Taytay Town. Prov., Xinshan, Mengla; in Institute of Zool- Distribution. The Philippines: Palawan ogy, Shaanxi Normal University, China). Island. Note. This species was described from two males from the type locality. Female Zhengitettix transpicula Zheng et Jiang, unknown. 2002 Length in mm. Male: body 7.5–8.0; pro- Zhengitettix transpicula Zheng & Jiang, 2002: notum 8.0–8.2; hind femur 5.0–5.5 (after 410, figs 1–4 (holotype – female, China: Zheng et al., 2010). Guangxi Prov., Fangcheng; in Institute of Distribution. China: Yunnan Province.

DISCUSSION ini, Metrodorini and Tetrigini. An attempt of increasing of taxonomic rank of Bolívar’s Recent classification of the family Tet- and Hancock’s “sections” to family level rigidae is based on a very old conception was made without any division of each í proposed by Bol var (1877). Later Hancock family into subfamilies and tribes (Liang (1907) has revised Bolivar’s system. He & Zheng, 1998; Zheng, 2005). Now, in the considered this taxon as a subfamily (Tet- internet-catalogue of Orthoptera (Eades et riginae) of the family Acrididae with nine al., 2013), Tetrigidae is divided into eight sections: Tripetalocerae, Cleostratae, Dis- subfamilies (Batrachideinae, Cladonotinae, cotettigae, Bufonidae, Cladonotae, Batra- Cleostratinae, Discotettiginae, Tripetalo- chideae, Scelimenae, Metrodorae and Tet- ce rinae, Lophotettiginae, Scelimeninae, rigiae. Majority of Tetriginae described to Me trodorinae, Tetriginae) and one tribe of the beginning of 20th century were placed uncertain position (Xerophyllini). in the sections Scelimenae, Metrodorae and During the last century, numerous new Tetrigiae, which are characterised by lack- genera of Tetrigidae were described; some ing of such bright synapomorphies as the of them are characterised by combinations foliaceus antennae, strongly oblique face, of the features typical of different subfami- frontal ridge forming a scutellum, and dis- lies or tribes. Thus, still now division of the tinctly sulcate anterior femora. These three family Tetrigidae into subfamilies and tribes groups differs from each other only in the is not clearly defined. The above-mentioned shape of lateral lobes of pronotum and in the system is useful for easy determination of relative length of first and third segments of genera and species, but probably it is rather hind tarsi (in Scelimenae, the lower part of far from the real phylogenetic relationships lateral lobes is directed outwards and usual- of genera. For example, there are three gen- ly forming strong spine, and fist segment of era of Tetrigidae (Zhengitettix in the subfam- hind tarsi is generally longer than third one; ily Scelimeninae, SystolederusBolívar, 1887 in Metrodorae, the lower part of lateral lobes in Metrodorinae, and Teredorus Hancock, is directed outwards but obliquely truncate, 1907 in Tetriginae) characterised by almost and fist and third segments of hind tarsi are the same combination of features: fastigium almost equal in length; in Tetrigiae, the low- of vertex extremely narrow (apomorphy), er part of lateral lobes is turned downwards eyes strongly exserted above the disc of and rounded, and first segment of hind tarsi pronotum (apomorphy), frontal ridge nar- is longer than third one). In the beginning row (apomorphy), pronotum flat and ante- of his work, Günther (1938a; 1938b; 1939) riorly truncate (plesiomorphy), median and follows to Hancock’s system and use the lateral carinae of pronotum low (plesiomor- sections Scelimenae, Metrodorae and Tet- phy), tegminal sinus deep (plesiomorphy), rigiae, but finally he doesn’t separate these tegmina and hind wings normal for this groups (Günther, 1979). Scelimeninae, Me- family (plesiomorphy), and first and third trodorinae and Tetriginae were considered tarsal segments of hind legs almost equal as separate subfamilies of Tetrigidae and in the length (plesiomorphy). They differs provided with diagnoses by Bey-Bienko in the shape and direction of the lower part (1951). Later Kevan (1966) without any of lateral lobes of pronotum: in Zhengitettix, diagnosis or description divided Tetrigi- this part is typical of Scelimeninae; in Sys- dae into three subfamilies: Cleostratinae, tolederus, typical of Metrodorinae; and in Cladonotinae and Tetriginae. In the latter Teredorus, typical of Tetriginae. However, subfamily, he placed the tribes Scelimenini, if the habitually similar genera Zhengitettix, Thoradonotini (=Thoradontini), Discotet- Systolederus and Teredorus form a mono- tigini (including Tripetalocerinae and a few phyletic group, their above-mentioned gen- other genera of Metrodorinae), Criotettig- eral apomorphic characters are synapomor-

Fig. 48. Distribution map of species of Zhengitettix. phies, and differences in the lateral lobes of scientific name of this subfamily must be pronotum arose within this group irrespec- ScelimeninaeBolívar, 1887. tive of the other genera of Tetrigidae, we shall be in need of a critical revision of the ACKNOWLEDGMENTS system of Scelimeninae, Metrodorinae and The author wish to express sincere thanks to Tetriginae. But such work is not a subject of A.V. Gorochov for the possibility to study ZIN this paper devoted mainly to descriptions of collections and two anonymous reviewers. This new species of one genus. study was supported by the Russian Foundation Thus, here the genus Zhengitettix is for Basic Research (project No. 11-04-00624) tentatively considered as belonging to the and Far Eastern Branch of the Russian Academy subfamily Scelimeninae. It consists of thir- of Sciences (grants Nos 12-I-II30-03 and 12-I- teen species distributed in China, Thailand, OBN-02). Vietnam and Philippines (Fig. 48). Almost all these species are local endemics in differ- REFERENCES ent mountain areas or islands, and only Z. Bey-Bienko G.Ya. 1951. Semeystvo Tetrigi- curvispinus is widely distributed in South dae – tetrigidy, ili prygunchiki (=Acry- China and Vietnam. diidae) [Family Tetrigidae (=Acrydiidae)]. Finally, it is necessary to note that in In: Bey-Bienko G.Ya. & Mistshenko L.L. the on-line catalogue of Orthoptera (Eades Saranchevye fauny SSSR i sopredel’nykh et al., 2013) Hancock (1907) is incorrectly stran, 1 [Locust and grasshoppers of the mentioned as the author of the subfamily USSR and adjacent countries, 1]: 83–107. Scelimeninae. Actually, this name is based Moscow, Leningrad: Izdatel’stvo akademii nauk SSSR. (In Russian). on the section Scelimenae proposed by- í Bolívar I. 1887. Acridiens de la tribu des Tetrigi- Bol var (1887). According to Articles 11.7 dae. Annales de la Sociéte Entomologique de and 35.2 of the Code of Zoological Nomen- Belgique, 31: 175–313. clature (International Commission on Zoo- Deng W.A., Zheng Z.M. & Wie S.Z. 2010. A logical Nomenclature, 1999), a complete taxonomic study on the genus Zhengitettix

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