Rediscovery of Liara (Unalianus) heteracanthus (Redtenbacher, 1891) (Orthoptera: Tettigoniidae: Conocephalinae: Agraeciini) from India with notes on its distribution Author Kumar, Hirdesh 0000-0003-3152-2496 entomologist 1985 @ gmail. com; https: // orcid. org / 0000 - 0003 - 3152 - 2496 entomologist1985@gmail.com Author Kushwaha, Sandeep 0000-0002-8118-2541 sandeepkushwaha _ 17 @ yahoo. com; https: // orcid. org / 0000 - 0002 - 8118 - 2541 sandeepkushwaha_17@yahoo.com Author Chand, D. Suresh 0000-0002-3606-9320 dschand _ manish @ rediffmail. com; https: // orcid. org / 0000 - 0002 - 3606 - 9320 dschand_manish@rediffmail.com text Zootaxa 2021 2021-08-11 5020 1 166 170 journal article 10.11646/zootaxa.5020.1.8 1175-5326 5223138 9162C044-2C1D-4782-AF4E-82A3F2D1A141 Liara ( Unalianus ) heteracanthus ( Redtenbacher, 1891 ) Figs 1–2 http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:509028 Oxystethus heteracanthus Redtenbacher, 1891: 443 ( Holotype - male. “Hinterindien” (coll. Brunner); deposited in NMW, Vienna Museum); Brongniart, 1897: 81; Kirby, 1906: 257 ; Karny, 1912: 16 ; Ingrisch, 1998: 70 . Unalianus heteracanthus Koçak & Kemal, 2009: 2 . Materials examined: INDIA , Mizoram , Champhai , 23.89346944N , 93.27944444E , alt. 1603m ., 1 male , 08-v-2019 (Coll. by Sonam) . Redescription: Male ( Fig. 1 ): Body stout. Head ( Fig. 2A ) wide. Antennae broken; antennal sockets ( Fig. 2A, B ) located near the top of head not strongly rimmed; antennae separated at the base by a distance equal to or greater than the length of the first antennal segment. Fastigium of vertex ( Fig. 2A ) straight; not sulcate above; produced forward as a slen- der spine. Frons ( Fig. 2B ) shining, subrugose. Pronotum ( Fig. 2A, C ) semi-cylindrical, disc without distinct lateral angles, subrugose; median carina weak but distinct beyond transverse sulcus; transverse sulcus curved, interrupted in middle; anterior margin subtruncate in middle; humeral sinus distinct; lateral lobes of pronotum with an auditory swelling; ventro-anterior angle of pronotum rounded; thoracic auditory spiracle large and elongate, concealed by pronotum. Prosternum unarmed. Meso and metasternal lobes ( Fig. 2D ) triangularly-rounded, spiniform. Tegmina fully developed; surpassing the abdomen as well as hind knees; apex rounded. Hind wings shorter than tegmina. Tympanum on fore tibia closed. Coxa of fore leg spined. Fore femur ( Fig. 2H ) on ventro-internal margin with large and small spines; genicular lobes not spined. Middle ( Fig. 2J ) and hind ( Fig. 2K ) femurs on ventro-external margin with large and small spines. Middle femur ( Fig. 2J ) with only inner genicular lobe spined. Hind femur ( Fig. 2K ) with both the genicular lobes spined. Fore ( Fig. 2H, I ) and middle ( Fig. 2J ) tibia with spines on ventral side only. Hind tibia ( Fig. 2L ) with spined on both dorsal and ventral side. Apical margin of 10 th abdominal tergite ( Fig. 2E ) slightly emerginate, lobes rounded and short. Male cerci ( Fig. 2E, F ) apically incurved and bifurcated into a broad dorsal and a narrow ventral lobe; dorsal lobe with apex terminating in a spine at dorsal margin and rounded below that spine; ventral lobe with acute apex. Subgenital plate ( Fig. 2G ) with subparallel lateral margins, apex with a broad, triangularly rounded excision; with small styli. Titillators fused in centre; basal and apical parts strongly deviating, together circa X-shaped; apex narrow boot-shaped with margins irregularly dentate and surface spinulose. Measurements (in mm): Male: Body: 27.0; Pronotum: 8.0; Tegmina: 25.0; Hind Femur: 17.5. Distribution: India : Mizoram .