The spider-like katydid Arachnoscelis (Orthoptera: Tettigoniidae: Listroscelidinae): anatomical study of the genus Author Montealegre-Z, Fernando Author Cadena-Castañeda, Oscar J. Author Chivers, Benedict text Zootaxa 2013 3666 4 591 600 journal article 10.11646/zootaxa.3666.4.11 721e2c96-a14d-4f54-a91d-c90d935bbcf3 1175-5326 220348 9003A657-E188-4B1D-BE70-E1A465F4A2C4 Arachnoscelis Karny 1911 Karny . 1911 . . Wien 61 : 334–347 Karny. 1912. Genera Insectorum 131:3 Bruner, L. 1915 . 9 ( 3–4 ):363 Randell. 1964. Canadian Ent. 96:1608 Gorochov . 1995 [ 1994 ]. Zoosystematica Rossica 3(2):202 Otte, D. 1997. Orthoptera Species File 7 : 80 . 2002 . J. Orth. Res. 11 ( 2 ):127 . 2007 . Zoosystematica Rossica 16 ( 2 ): 210 Gorochov. 2012. Trudy Zoologicheskogo Instituta 316(4):287 Redescription of the genus. Head elongated in males. Male mandibles well developed, mandible elongated. Head, and mandibles of the female of normal appearance ( Fig. 2 ). Males and females with notoriously large maxillary palps. Legs: Fore tibia distally decurved with 5 pairs of movable spines on the ventral surface ( Fig. 3 ); tympanal area on the proximal part of fore tibia inflated, with a pair of tympanal openings that are antero-distally elongated, spacious, and asymmetrical; the anterior opening is narrower than the posterior one. Distal margin of both tympanal openings rounded, proximally this margin is acute. Wings: Male brachypterous, tegmina reduced to the size of the stridulatory area ( Figs. 1 A, and 4A–E). Massive vein (formed by the merging of several veins), curves towards the anal area, ends blunt and weakly connects to CuPaa2 through the narrow handle vein (h in Fig. 4 E) and vein CuPaa2+CuPaß. The wing shows a large soft area between M+CuA end and CuPaa2 ( Fig. 4 E). Tympanal slits elongated, relatively broad and asymmetrical ( Fig. 5 A). Scraper area subquadrate, as large as the mirror area. Genitalia: Male subgenital plate broad with a broad v-shape notch, with two distinct styli. Female subgenital plate elongated, upturned, with distal bifurcation ( Fig. 5 B).