Triaenogryllacris Karny, 1937

Cadena-Castañeda, Oscar J., Díaz, Carlos Julio Arango, Guez, Nixon Oscar Parra Rodrí- & García, Alexander García, 2020, Studies on raspy crickets: New Triaenogryllacris species (Orthoptera: Gryllacrididae), Zootaxa 4896 (2), pp. 239-250 : 240-242

publication ID	https://doi.org/ 10.11646/zootaxa.4896.2.5
publication LSID	lsid:zoobank.org:pub:ED710370-49C4-4DBC-A940-AB9954D2FB53
DOI	https://doi.org/10.5281/zenodo.4382781
persistent identifier	https://treatment.plazi.org/id/03BE9263-FF8D-E842-FF20-F8C4FF78FD6D
treatment provided by	Plazi
scientific name	Triaenogryllacris Karny, 1937
status

Treatment

Redescription. Medium-sized (body length 19-22 mm) ( Fig. 1A View FIGURE 1 , 4A View FIGURE 4 ). Coloration. Body pink, green, or yellowish ( Fig. 1-6 View FIGURE 1 View FIGURE 2 View FIGURE 3 View FIGURE 4 View FIGURE 5 View FIGURE 6 ). Head completely black ( Fig. 1B View FIGURE 1 , 6A View FIGURE 6 ) or reddish ( Fig. 4D View FIGURE 4 ); central ocellus white, red or pink ( Fig. 2B View FIGURE 2 , 3B View FIGURE 3 , 4D View FIGURE 4 , 6A View FIGURE 6 ). Tegmina whitish, with red veins and hind wings hyaline, with red to brownish veins ( Fig. 1A View FIGURE 1 ). Head. Space between antennal sockets 1.5 times the wider than the antennal scape; median ocellus as a large spot; maxillary palps elongated with the last segment slightly dilated at the apex; labial palpi robust, the last segment noticeably dilated in a scalene triangle shape and with a truncated apex ( Fig. 1B View FIGURE 1 , 4D View FIGURE 4 , 6A View FIGURE 6 ). Thorax. Pronotum narrow and smooth, with quadrangular pronotal disc and rectangular lateral lobes; auditory spiracle below the lower margin of the lateral lobe of the pronotum and armed with a conspicuous spine ( Fig. 4 View FIGURE 4 B-C, 6B-C). Propleuron armed with a conspicuous and stout spine ( Fig. 4D View FIGURE 4 , 6 View FIGURE 6 A-B). Legs. All coxae without spines or tubercles. Fore and mid femora unarmed; hind femur with spines on both ventral edges. Fore and middle tibiae, except the terminal spines, with four pairs of spines. Both sides of hind tibiae are very similarly armed (normally), with three spines on both dorsal edges; ventral edges unarmed. Wings. Well developed, slightly projecting beyond hind knees ( Fig. 4 View FIGURE 4 A-B). Tegmina with five anal longitudinal veins (post-cubital veins sensu Karny, 1937). Media vein (M) originating from radius stem, appears as the first branch of radius. Hind wings with Rs vein without connection to M vein, only originating at the beginning of the apical third of R, which bifurcates once ( Fig. 1A View FIGURE 1 ). Abdomen. Stridulatory apparatus poorly developed. Male. Ninth and tenth abdominal tergite unmodified, sclerotized hooks present between the paraprocts and ventral edge of the tenth tergite, the area between the hooks membranous ( Fig. 5 View FIGURE 5 A-B). Cerci simple without branches. Subgenital plate posteriorly with three or two acute median processes, without styli ( Fig. 1D View FIGURE 1 , 5 View FIGURE 5 D-F). Female. Subgenital plate posteriorly emarginated and slightly narrower than its base, sternite preceding the subgenital plate with a papilla on each side ( Fig. 6 View FIGURE 6 D-E). Ovipositor longer than the hind femur, tip semicircularly rounded ( Fig. 6F View FIGURE 6 ).