Corresponding author: Kai Li (
Academic editor: David Eades
Two new species of the new genus
Wang H, Liu X, Li K (2014) A synoptic review of the genus
The genus
The materials for this research were collected by us (from China) and came from the Bishop Museum (from Vietnam). Morphological structures were examined using a Leica MZ 125 and an OLYMUPS SZX 16 stereomicroscope, images were taken using a Motic Moticam Pro 252A digital imaging system, and drawings were produced by Adobe Photoshop from the digital images. All type specimens of new species are deposited in the SEM (Shanghai Entomological Museum, Chinese Academy of Science.) and the BPBM (Bernice Pauahi Bishop Museum, Hawaii).
In the specimen measurements, we measured length of body by distance between apex of fastigium verticis and posterior margin of tenth abdominal tergite, ovipositor by distance between base of subgenital fig and apex of ovipositor; pronotum, tegmina and posterfemora by distance between summit of base and apex. All length are shown in millimeter.
1 | Head hypognathous, ovipositor short and up curve, or unknown |
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– | Head obliquely opisthognathous, ovipositor almost straight and long |
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2 | Pair of unique ventral arms at male 10th abdominal tergite |
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– | Ventral part of male 10th abdominal tergite as usual |
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3 | Each lower lobe of hind knee with an apical spine |
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– | Spine of genicular lobe absent |
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4 | Apex of male cerci with 3 processes; subgential fig of female transverse |
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– | Male cerci robust, with 2 long inner processes; female unknown |
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5 | Pronotum of male without markings; female unknown |
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– | Body smaller, pronotum with blackish brown and yellow patches |
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6 | Posterior marginal process on abdominal tergite 10 larger, cerci long |
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– | Posterior marginal process on abdominal tergite 10 very small, cerci short and stout |
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7 | Male 10th abdominal tergite bearing a single process at hind margin; female ovipositor almost straight |
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– | Male 10th abdominal tergite without processes at hind margin; female unknown |
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8 | Female subgenital fig almost triangular |
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– | Female subgenital fig nearly quadrate, hind margin circularly truncate; male unknown |
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9 | Single process of male 10th abdominal tergite triangular, apex sparsely denticulated, male cerci with distinct processes; female subgenital fig not transverse, apex sharp |
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– | Single process of male 10th abdominal tergite longer, separate into 2 lobes apically, male cerci without process; female subgenital fig more or less transverse, apex blunt |
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10 | Middle process of male 10th abdominal tergite rearwards produced, male cerci extremely bent inwards; female subgenital fig hardly transverse, nearly circular |
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– | Male unknown; female subgenital fig transverse, circular or triangular |
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11 | Fastigium of vertex conical; female subgenital fig nearly triangular |
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– | Fastigium of vertex cylindrical; female subgenital fig nearly circular |
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Body small sized. Head opisthognathous. Fastigium of vertex short without sulcus dorsally, face extremely oblique, last segment of maxillary palpi longer than the preceding. Pronotum with low lateral lobes, humeral sinus absent; auditory foramina of thorax entirely exposed. Tegmina shorter than pronotum, with the stridulating organ in male, hind wing degraded. Auditory foramina of fore tibiae opened, hind tibiae with 2 pairs of apical spurs. Male 10th abdominal tergite bearing a single process on posterior margin or absence, cerci elongate with processes, subgenital fig with short styli, genitalia entirely membranous. Female subgenital fig nearly triangular, ovipositor shorter than hind femora, ventral valve with a small apical hook.
The opisthognathous head and low lateral lobes of pronotum can easily distinguished them from other genera, for now
Pronotum shorter, tegmina extremely short and truncate at apex, male 10th abdominal tergite attached a single process at hind margin and female subgenital fig nearly triangular.
Apex of the male posterior process at 10 abdominal tergite sparsely dentate (Fig.
Body greenish, unicolor.
(length in mm) Body, ♂♀9.0; pronotum, ♂♀3.8; tegmina, ♂♀0.5–1.5; hind femora, ♂♀7.0; ovipositor, ♀7.0.
India.
Head hypognathous. Male 10th abdominal tergite transverse, middle lobe divided into 2 finger-shaped apices (Fig.
Body olive-green, eyes darkish, antennae with dark rings.
(length in mm) Body, ♂8.0, ♀8.5–9.5; pronotum, ♂3.0, ♀2.5; tegmina, ♂♀3.0; hind femora, ♂♀8.0–8.5; ovipositor, ♀5.5–6.0.
The general features of this species ally to
Indonesia.
Female tegmina rather shorter than pronotum, subgenital fig short, nearly triangular, apex blunt (Fig.
Body yellowish (maybe greenish in life), totally unicolor.
(length in mm) Body, ♀9.5; pronotum, ♀3.7; tegmina, ♀3.2; hind femora, ♀8.5; ovipositor, ♀7.5.
China (Yunnan, Tengchong).
Female subgenital fig transverse, hind margin with middle circular convex (Fig.
Body yellowish, unicolor.
(length in mm) Body, ♀11.0; pronotum, ♀3.7; tegmina, ♀2.4; hind femora, ♀7.5; ovipositor, ♀7.0.
India.
Female tegmina no longer than pronotum, apex pointed. Subgenital fig nearly quadrate, hind margin circularly truncated (Fig.
Body greenish, unicolor.
(length in mm) Body, ♀12.0; pronotum, ♀3.8; tegmina, ♀3.0; hind femora, ♀10.0; ovipositor, ♀10.0.
India (New Delhi).
Male pronotum longer, tegmina almost equal to pronotum, apex truncate (Fig.
(length in mm) Body, ♂11.0; pronotum, ♂4.8; tegmina, ♂4.8; hind femora, ♂5.5.
India.
Body small of this tribe. Head hypognathous, low in profile. Fastigium of vertex short with shallow furrow dorsally, last segment of maxillary palpi little longer than the preceding. Pronotum with lower paranota, humeral sinus absent; auditory foramina of thorax entirely exposed. Tegmina shorter than pronotum, with the stridulating organ in male, hind wing degraded. Auditory foramina of fore tibiae opened, hind tibiae with 2 pairs of apical spurs. Male 10th abdominal tergite with branched process at posterior margin, cerci elongate or branched, subgenital fig with short styli, genitalia entirely membranous. Female subgenital fig transverse, rounded at posterior margin, ovipositor short and upcurved, ventral valve with a small apical hook.
This new genus similar to
Holotype♂, paratype2♀♀, Vietnam, Mt. Lang Bian, Alt. 1500– 2000m, 1961.V.19– VI.8, coll. N.R. Spencer (BPBM). Deposited in SEM temporarily.
Male. Head low in profile. Fastigium of vertex rather short, shallowly furrowed on dorsum (Fig.
Female. General roughly as in male. Cerci short and conical, subgenital fig transverse and flabellate, hind margin circular convex (Fig.
Body yellowish (maybe greenish in life), eyes blackish brown, antennae with inconspicuous darkish rings, fore and hind margins of pronotum either with blackish brown marking rounded yellow rim (Fig.
(length in mm) Body, ♂7.5, ♀8.0; pronotum, ♂2.8, ♀2.2; tegmina, ♂1.0, ♀0.8; hind femora, ♂6.5, ♀7.0; ovipositor, ♀3.8.
This new species distinguishes from other species of the genus in body smaller, pronotum with blackish brown and yellow markings, female subgential fig with rounded posterior edge.
The specific epithet referrers body form of this species, from Latin minūtus. The gender of the epithet is masculine.
Vietnam.
Holotype ♂ (# 14088760), China, Xizang, Nyalam Country, Zhangmu, Alt. 2300m, 2010.VII.17–18, coll. W.X. Bi; Paratype 1♂ (# 14088761), same data as holotype (SEM).
Male. Head high in profile. Fastigium of vertex short, dorsum shallowly furrowed in middle, face slightly oblique (Fig.
Female unknown.
Body yellowish (may be greenish in life), unicolor.
(length in mm) Body, ♂7.0–8.0; pronotum, ♂3.3–3.5; tegmina, ♂2.0; hind femora, ♂6.5–7.0.
This species looks different from type species in general, distinguishes mainly by higher head and pronotum in profile and inner lobe of cerci; but shearing branched process of male 10th abdominal tergite and simple but slender cerci.
The specific epithet is Latinized name of district Tibet where this species distributed. The gender of the epithet is masculine.
China (Xizang).
Posterior margin of male 10th abdominal tergite with a small branched process, male cercus stout and bifurcated, superior ramus clubbed, inferior ramus with an inner triangular lobe at proximal part.
Body yellowish green. Eyes and spines of hind tibiae blackish, genicular lobes of all femora each with a blackish spot.
Holotype♂, paratype1♂, Daitianping, Fengyangshan National Nature Reserve, Zhejiang, Alt. 1200m, 2008.X.20, coll. S.L. Liu.
(length in mm) Body, ♀6,5; pronotum, ♀3.5; tegmina, ♀2.0; hind femora, ♀6.5.
The cerci of this species are stouter and quite different from previous 2 species of this genus which makes it easy to tell them apart, meanwhile the species meets the diagnosis of
China (Zhejiang).
This genus differs from
Lower lobe of the male hind knee with spine, apex of male cerci with 3 processes (Figs
Body yellowish green, almost unicolor, antennae with brown rings, lower part of the pronotum lateral lobe with brown edge; apex of tibiae, tarsus and spine of tibiae darkened.
(length in mm) Body, ♂13.0– 14.0, ♀12.0– 13.0; pronotum, ♂4.2– 4.5, ♀4.0– 4.2; tegmina, ♂4.0– 4.5, ♀3.0; hind femora, ♂13.5– 14.0, ♀14.0– 15.0; ovipositor, ♀5.8– 6.0.
Vietnam.
Holotype♂, Vietnam, 40km S of Dilanh (Djiring), Alt. 543m, 1960.IV.26, coll. L.W. Quate (BPBM). Deposited in SEM temporarily.
Male. Fastigium of vertex short, without dorsal groove, face slightly oblique (Fig.
Female unknown.
Body yellowish (may be greenish alive), eyes blackish brown, antennae with inconspicuous darkish rings.
(length in mm) Body, ♂12.0; pronotum, ♂3.8; tegmina, ♂4.0; hind femora, ♂12.0.
This new species is similar to
The specific epithet refers to the character of male cerci which bearing 2 spinous processes, compose by prefix 'bi-' which means double and 'spinosus' which means spiny.
Vietnam.
Holotype♂ (# 14086640), China, Guangxi, Wuming, Damingshan, Alt. 1250m, 2013.VII.19–25, coll. W.B. Zhu, X.W. Liu, H.Q. Wang, H.G. Zhang. Paratype1♂ (# 14088762) 1♀ (# 14088763), same data as holotype (SEM).
Male. Body form small and slender. Fastigium of vertex short, without dorsal groove, face slightly oblique (Fig.
Female. Body form similar to that of male. Fastigium of vertex little longer and more slender, a shallow furrow on the dorsum, last segment of maxillary palpi much longer than preceding. Paranota of pronotum subacute at inferior margin, transverse sulcus distinct as in male, but metazona even shorter. Tegmina short as in male, pointed at apex, inferior margin obliquely truncated, veins conspicuous. Posterior margin of 9th abdominal tergite straight, cercus slender, fusiform, apex thin and acute (Fig.
In life of male. Body lightish green, emerald green and lightish yellow variegated. Flagella pale brown with darkish rings, scape and pedicel consistent with body color. Compound eyes vivid yellow. Both lateral rims of pronotum emerald green, but posterior edge vivid yellow, dorsum with green longitudinal stripes and patches. Each abdomen tergite with a pair of bright yellow oval patches and posterior edge darkish green. Hind tibiae, Tarsi and cerci terminal pale brown.
Dry specimen. Body brownish, antennae with inconspicuous darks rings, forma and tibia darkened around the knee joint. Male unicolor; female abdomen largely blackish brown, ventral surface totally black including subgenital fig, abdomen tergites each compact with a pair of large pale patches dorsally, base of ovipositor darkened.
(length in mm) Body, ♂7.4–8.7, ♀10.2; pronotum, ♂3.2–3.6, ♀3.8; tegmina, ♂1.9, ♀1.5; hind femora, ♂8.3–8.9, ♀9.5; ovipositor, ♀4.5.
The specific epithet from Latin ‘forca’ + ‘cercus’, corresponding the feature of male bifurcate cerci. The gender of the epithet is masculine.
Bearing those unique arms, clearly it is a
China (Guangxi).
Great acknowledgement to JIN Xing-Bao for research notes and BI Wen-Xuan for providing specimen materials. This work was supported by the Natural Science Foundation of Shanghai, China (No. 14ZR1413000).