Chinabacris Kumar and Usmani, 2016
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publication ID |
https://doi.org/ 10.3906/zoo-1501-5 |
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persistent identifier |
https://treatment.plazi.org/id/03F98799-FFD8-5E48-FFB1-F9E5EB96FDBC |
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treatment provided by |
Felipe |
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scientific name |
Chinabacris Kumar and Usmani |
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gen. nov. |
3.1. Genus Chinabacris Kumar and Usmani View in CoL gen. n.
Type species: Chinabacris trisulcata Kumar and Usmani View in CoL sp. n.
Description: Small to medium size ( Figure 2A View Figure 2 ); body compressed dorsoventrally; antennae ( Figure 2J View Figure 2 ) filiform, shorter than head and pronotum together; head ( Figure 2D View Figure 2 ) obtusely rounded; fastigium of vertex ( Figure 2F View Figure 2 ) triangular, concave with lateral carinulae, median carinula absent, apex acute angular; fastigial foveolae absent; frons
( Figure 2I View Figure 2 ) vertical; frontal ridge ( Figure 2E View Figure 2 ) narrow and sulcate; dorsum of pronotum ( Figure 2G View Figure 2 ) flat, as long as or slightly wider than long, slightly constricted in prozona, median carina linear, crossed by all the three transverse sulci, lateral carinae absent; metazona as long as or slightly shorter than prozona, posterior margin rounded; mesosternal interspace ( Figure 2H View Figure 2 ) open, wider than long; tegmina and wings fully developed; hind femur slender; hind tibia with inner pair of spurs subequal and longer than external one ( Figure 2P View Figure 2 ), external apical spine absent; arolium ( Figure 2Q View Figure 2 ) of small size.
Male genitalia: Supraanal plate ( Figures 2R View Figure 2 , 3A View Figure 3 ) elongate angular, cercus ( Figures 2T, 2U View Figure 2 ) conical with obtuse apex; subgenital plate ( Figures 2S View Figure 2 , 3B View Figure 3 ) conical, apex obtusely conical; epiphallus ( Figure 3C View Figure 3 ), bridge narrow and undivided medially; ancorae small, lophi large and bilobate; aedeagus ( Figure 3D View Figure 3 ) flexured, apical valve narrower and shorter than basal valve.
Female genitalia: Supraanal plate ( Figures 2V View Figure 2 , 3E View Figure 3 ) broadly angular, cercus conical with obtusely conical apex; subgenital plate ( Figures 2W View Figure 2 , 3F View Figure 3 ), posterior margin triangular and setose; spermatheca ( Figure 3G View Figure 3 ), apical diverticulum shorter than preapical diverticulum; ovipositor ( Figures 2X View Figure 2 , 3H View Figure 3 ), dorsal valve broad much shorter than lateral apodeme.
Discussion: The new genus Chinabacris Kumar and Usmani gen. n. differs from other genera of the subfamily Oedipodinae by the key characters outlined in the key to genera of Indian Oedipodinae . Meristopteryx , Trilophidia , Bryodemella , and Bryodema differ from the new genus in the presence of two transverse sulci crossing median carina, which is crossed by three transverse sulci in Oedipodacris , Pusana , and Chinabacris . In other genera of Oedipodinae the median carina of the pronotum is crossed by only the posterior transverse sulcus. The new genus is similar to Oedipodacris and Pusana ; it differs from following characters (see Table):
Due to the characters such as absence of prosternal process, vertical frons, claws of the tarsi provided with an arolium, bridge-shaped epiphallus, entirely setose posterior margin of female subgenital plate and spermatheca with apical diverticulum short, and preapical diverticulum sac-like, the genus Chinabacris Kumar and Usmani gen. n. is arranged under the subfamily Oedipodinae .
The most identifying features of the subfamily Egnatiinae are: (i) transverse groove of mesosternum in the middle strongly concave caudad between the lateral lobes and (ii) open median area of tegmina. Due to the absence of these characters the new genus differs from the members of this subfamily.
Etymology: The geographic name of the new genus is based on the River Chinab in Jammu and Kashmir, India. 3.2. Chinabacris trisulcata Kumar and Usmani sp. n.
Description:
Male ( Figure 2A View Figure 2 ): Small to medium sized; body cylindrical, slightly compressed dorsally; antennae ( Figure 2J View Figure 2 ) filiform, slightly inflated in apical part, 24-segmented, as long as or slightly shorter than head and pronotum together ( Figure 2C View Figure 2 ); head ( Figure 2D View Figure 2 ) obtusely rounded, shorter than pronotum; eyes rounded, near the apex, maximum diameter of eyes longer than the interocular distance; fastigium of vertex ( Figure 2F View Figure 2 ) triangular, wider than long, produced in front of eyes, shorter than eye length, sloping forward, concave with well-developed lateral carinulae, median carinula absent, apex acute angular; frons ( Figure 2I View Figure 2 ) oblique; width of vertex between the eyes wider than the frontal ridge between the antennal sockets; fastigial foveolae absent; frontal ridge ( Figure 2E View Figure 2 ) narrow and sulcated with lateral carinulae reaching up to the clypeus, margins diverging below; pronotum ( Figure 2G View Figure 2 ) flat or slightly tectiform, granulose, as long as or slightly wider than its length, constricted in prozona with median carina linear, obliterated in the middle, equally raised in prozona and metazona, all three transverse sulci seen on the dorsum of pronotum and cross median carina, lateral carinae absent, prozona as long as or slightly longer than metazona, posteroventral angle ( Figure 2I View Figure 2 ) obtusely rounded, posterior margin rounded; prosternal process absent; mesosternal lobes ( Figure 2H View Figure 2 ) rounded and mesosternal interspace wider than long, margins slightly diverging below; tegmina ( Figure 2K View Figure 2 ) fully developed surpassing the apex of hind femur, narrow with truncated apex, medial area of tegmen with serrated intercalary vein; hind wing ( Figure 2L View Figure 2 ) slightly shorter than the tegmina; hind femur ( Figure 2M View Figure 2 ) long and slender, both the carina smooth, surpassing the tip of abdomen, upper apical lobe longer than lower ( Figure 2N View Figure 2 ); hind tibia ( Figure 2O View Figure 2 ) cylindrical, shorter than the hind femora with 8 outer and 9 inner spines, slightly expanded apically, inner pair of spurs subequal and longer than external one ( Figure 2P View Figure 2 ), external apical spine absent; arolium ( Figure 2Q View Figure 2 ) small.
Genitalia: Supraanal plate ( Figures 2R View Figure 2 , 3A View Figure 3 ) elongate angular, lateral margins curved medially, longer than wide, apex obtusely conical; cercus ( Figures 2T, 2U View Figure 2 ) conical, slightly incurved and downcurved, shorter than supraanal plate, more than three times as long as wide, apex obtuse. Subgenital plate ( Figures 2S View Figure 2 , 3B View Figure 3 ) short and conical, wider than long, broad basally, apex obtusely conical. Epiphallus ( Figures 3C View Figure 3 ), bridge narrow and undivided medially; ancorae small and incurved with acute apex; lophi large, bilobate and lobiform. Aedeagus ( Figure 3D View Figure 3 ) flexured, apical valve short and narrow, slightly curved, apex obtuse, narrower and shorter than basal valve, connected with basal valve with flexure; basal valve broad, narrowing towards its obtuse apex; gonopore process short with acute apex.
Female ( Figure 2B View Figure 2 ): Same as male but larger.
Genitalia: Supraanal ( Figures 2V View Figure 2 , 3E View Figure 3 ) plate broadly angular, wider than long with obtusely rounded apex; cercus short, narrow and conical, shorter than supraanal plate, two and a half times as long as wide, with obtusely conical apex. Subgenital plate ( Figures 2W View Figure 2 , 3F View Figure 3 ) short, posterior margin triangular and setose; egg-guide broad, longer than wide, with acute apex. Spermatheca ( Figure 3G View Figure 3 ), apical diverticulum short and tubular, shorter than preapical diverticulum; preapical diverticulum long, broad, sac like. Ovipositor ( Figures 2X View Figure 2 , 3H View Figure 3 ) valves short, robust and curved; dorsal valve broad, almost three times as long as wide, much shorter than lateral apodeme, apical tip short and obtuse; ventral valve narrow with obtuse external, lateral projection, apical tip short and obtuse; mesial valve dilated apically.
Type Material: HOLOTYPE: ♂, INDIA, Jammu & Kashmir, Jammu, River Chinab , 08-IV-2011, on grasses (Hirdesh Kumar) . PARATYPES: 15♂♂, 13♀♀ (other data same as holotype) .
Measurements (length in mm):
Male: Body: 17.80; Pronotum: 2.86; Antenna: 5.62; Tegmina: 15.33; Hind Femur: 9.57.
Female: Body: 25.67; Pronotum: 3.42; Antenna: 6.46; Tegmina: 19.34; Hind Femur: 11.32.
Distribution: Jammu and Kashmir.
Etymology: Descriptive species name is given because median carina of pronotum crossed by three transverse sulci.
Nomenclatural Acts: This work and the nomenclatural acts it contains have been registered in Zoobank. Zoobank Life Science Identifier (LSID) for this publication is: http:// zoobank.org/ urn:lsid:zoobank.org:pub:42A06F8B-8035-41A0-AFD2-9281C970FCF5
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