Atlanticus Scudder, 1894

Liu, Chun-Xiang, 2013, Review of Atlanticus Scudder, 1894 (Orthoptera: Tettigoniidae: Tettigoniinae) from China, with description of 27 new species, Zootaxa 3647 (1), pp. 1-42 : 3

Atlanticus Scudder, 1894

Type species: Decticus pachymerus Burmeister, 1838 . Orchesticus Saussure, 1859 . Revue et Mag. Zool., 2 ser., 9: 201 (preocc.). Engoniaspis Brunner, 1893 . Ann. Mus. Genova. 33: 185 (invalid). Amuria Brunner, 1893 . Ann. Mus. Genova. 33: 185 (invalid & preoccupied); Pylnov, 1914. Revue Russe d’Ent. 14:109. Atlanticus Scudder, 1894 . Canadian Ent. 26(7):177-184; Blatchley, 1903. Ann. Rep. Dept. Geol. and Nat. Resources of Indiana

27:392; Rehn & Hebard, 1916. Trans. Amer. Entomol. Soc. 42:34; Tinkham, 1941. Notes Ent. Chinoise 8(5):189–243,

198, 229; Bey-Bienko, 1955. Zoologicheskii Zhurnal 34:1250–1271; Rentz & Colless, 1990. Tettigoniidae : Biology,

Systematics and Evolution, Springer-Verlag, Berlin 354, 355; Jin & Xia, 1994. Jour. Orth. Res. 3:28.

Description. Scudder (1894); Rehn & Hebard (1916); Tinkham (1941).

Redescription. Fore femur longer than pronotum. Fore and middle tibiae dorsally with a subapical spine only on one side, exterior in fore tibiae and interior in middle ones. Female tegmen micropterous. Ovipositor somewhat recurved in Asian species, but decurved in most North American species.

Notes. The present taxonomic account is based on the material collected from China. The Asian species of Atlanticus are variable in body size, length, shape and vein structure of male tegmen, male tenth abdominal tergum, male cercus, and shape, length, width of female ovipositor. According to the variance, they were divided into six species groups in Tinkham (1941). Nonetheless, American species of Atlanticus are variable regarding the presence of spines on the prosternum, divergence degree of lateral carinae on disc of pronotum, shape of caudal margin of disc of pronotum, length of medio-internal spur of hind tibia, and especially the curvature of the ovipositor. The genus was divided into four groups in Rehn & Hebard (1916). Thus, it is essential to also re-examine species distributed in North America to give a detailed redescription; however, the material of those species was not available at this time.