Decticus Serville, 1831

Liu, Fei, Chen, Liusheng & Liu, Chunxiang, 2020, Taxonomic Studies of the genus Decticus Serville, 1831 from China (Orthoptera Tettigoniidae: Tettigoniinae), based on Morphology and Songs, Zootaxa 4860 (4), pp. 563-576 : 569

Genus Decticus Serville, 1831

Decticus Serville, 1831 . Annales des Sciences Naturelles. 22(86):155; Serville, 1838[1839]. Histoire naturelle des insectes. Orthoptères, 484; Kirby, 1906. A Synonymic Catalogue of Orthoptera ( Orthoptera Saltatoria , Locustidae vel Acridiidae ) 2:212; Tarbinsky, 1932. Studies on the Orthoptera of the USSR (Bull. Leningrad Inst. Contr. Farm and Forest Pests) 2:193; Panhwar et al, 2017. Taxonomy of genus Decticus Serville, 1831 ( Decticinae : Tettigoniidae : Orthoptera ). Journal of Entomology and Zoology Studies 5(2):1101.

Type species: Decticus verrucivorus verrucivorus ( Linnaeus, 1758) .

Diagnosis. Disc of pronotum flat; median keels strongly developed and uninterrupted; hind margin rounded. Lateral lobes of pronotum with rounded lower margin. Prothorax ventrally without a pair of spines. Fore coxae armed with a fine spine. Hind tibiae with four ventral spurs. Each male cerci with an incurved tooth. Ovipositor slightly upcurved and crenulated at apex.

Redescription. Head ovoid, with smooth surface. Antennae slightly longer than body. Fastigium of vertex obtusely rounded, slightly wider than first antennal segment, connecting with frontal fastigium. Compound eyes nearly hemispherical. Male tenth abdominal tergum centrally depressed, split into two lobes at apex ( Fig. 4 ). Male subgenital plate with lateral carina and shallow apical incision; stylus long, cylindrical, pointed at apex ( Fig. 4 ). Female subgenital plate without conspicuous lateral carina.

Figures

FIGURE 4a–o. Male pronotum and abdominal apex (scale: 1.00 mm). a–e: Pronotum; f–j: The dorsal view of abdominal apex; k–o: The ventral view of abdominal apex.