Tagasta mizoramensis, Gupta & Chandra & Yin, 2020

Gupta, Sunil Kumar, Chandra, Kailash & Yin, Hai-Xiang, 2020, A new species of the genus Tagasta Bolivar, 1905 (Orthoptera: Pyrgomorphidae) from India, Zootaxa 4822 (3), pp. 446-450 : 447

Tagasta mizoramensis sp. nov. ( figs. 1 A–E, 2A–G)

Material examine (4 specimens)

Holotype: 1♀, INDIA, Mizoram, Dampa Wildlife Sanctuary, Telrei , 09.xi.1995 coll. M. S. Shishodia, Registration no. 31879/H5.

Paratypes. 2♂, 1♀, same locality as holotype, Registration no. 31880/H5–31882/H5 .

Diagnosis: Tagasta mizoramensis sp. nov. differs from all species by its hind wing not red, dark.

Descriptions. Female: Body medium, robust. Head short rounded, shorter than pronotum, without round white particles behind the eye; fastigium of vertex about as long as vertical diameter of eyes, longitudinally sulcated in middle; frontal ridge with low longitudinal sulcus; filiform antennae, inserted infront of lateral ocelli, reaching posterior margin of pronotum, length of basal segment shorter than width. Eyes long oval. Pronotum cylindrical, finely punctured, three transverse sulci present, prozona longer than metazona, median carina of pronotum distinct in metazona and indistinct in prozona, lateral carinae absent, the length of prozona about 1.7 times as long as the length of metazona, anterior margin of pronotum straight, posterior margin of pronotum arcuate, lateral lobe of pronotum angulated posterior region, without white granules on the lower margin. Prosternal tubercles rounded at anterior margin. Interspace of mesosternal lobe tetragonal, length larger than maximum width. Tegmina reaching up to 6 th abdominal segment, hind wings shorter than tegmina. Hind femur slender, its length 11 times its width, upper basal lobe of hind femur subequal the lower one, tip of lower kneelobe rounded. Posterior tibiae with 9 spines on inner side and 8 spines on outer side.

Male: Body medium sized. Head shorter than pronotum. Antennae filiform extended beyond hind margin of pronotum, eyes oval. Pronotum cylindrical, finely punctured, with three transverse sulci, lateral carinae and mid carinae indistinct. Prosternal process tuberculate, apex pointed Tegmina narrow, apex reaching 7 th –8 th abdominal tergite. Hind femur slender, its length 6 times its width. Posterior tibiae with 9 spines on inner side and 8 spines on outer side. 10 th abdominal tergite with posterior margin triangularly excised in middle, supra-anal plate broad triangular, median area longitudinally raised. Subgenital plate conical, apically rounded. Circus conically expanded, apices truncated in lateral view, reaching beyond posterior margin of supra-anal plate.

Colour: Body green-olivaceous. Eyes, dark brown. Antennae light brownish. Head dorsum part olivaceous, ventral dark yellow. Tegmina light green. Wings hyaline, dark. Fore and medina legs dark brownish, posterior femur yellowish green. Posterior tibiae blackish brown, Posterior tarsi reddish brown.

Morphometry (mm): Female: Body length: 35.4; Antenna length: 13.2, Antenna 1 st segment length: 0.8, Width: 0.6; Mid segments length: 1.1, width: 0.4; compound eyes length (Dorsal view): 2.1, width: 1.4; Dorsal ovipositor valve length: 2.6, width: 0.8; Fore legs: femur length: 5.7, width: 1.1, tibiae length: 4.3, width: 0.7, first tarsal segment length: 0.7, IInd segment length: 0.5, IIIrd segment length: 1.4; claws length: 0.9; Med legs: femur length: 6.9, width: tibiae length: 4.2; Hind legs: femur length: 19.3, width: 2.9, tibiae length: 17.2, width: 0.6, Ist Tarsal segment length: 2.0, IInd length: 0.7, IIIrd length: 2.2, arolium length: 0.3, width: 0.8, claws length: 0.7; Pronotum length: 8.7, Prozona length: 5.5, metazona length: 3.2; Head length: 4.6; tegmen length: 16.1, width: 4.7; wings length: 11.2, width: 5.5.

Male: Body length: 25.2; Head length: 4.4; Pronotum length: 6.7; Compound eye length (dorsal view): 1.8, width: 1.2; cerci length: 1.5, width: 0.2; Legs: fore legs: femur length: 3.8, width: 1.5 tibiae length: 3.9, width: 0.6; Mid legs: femur length: 5.9, width: 1.4; Hind legs: femur length: 15.2, width: 2.7, tibiae 13.3, width: 0.6.

Etymology: The name of the species has been given after the type locality.

Figures

FIGURES 1A–E. Tagasta mizoramensis sp. nov. A.♀ dorsal view; B. ♀ lateral view; C. ♀ wings stretch dorsal view; D. ♂ dorsal view; E. ♂ lateral view.