Poreuomenini Brunner von Wattenwyl, 1878

Massa, Bruno, 2018, The tropical African tribes Poreuomenini, Zeuneriini and Morgeniini with the description of a new genus (Orthoptera: Tettigoniidae: Phaneropterinae), Zootaxa 4514 (2), pp. 293-300 : 294

Tribe Poreuomenini Brunner von Wattenwyl, 1878

Diagnosis. According to Brunner von Wattenwyl (1878) the tribe Poreuomenini is characterized by: narrow tegmina, straight, radial veins separated by a very small space (radial vein long before the mid, later divided, marginal veins dense, perpendicularly provided. Posterior margin of pronotum not edged). Species of this tribe are also characterized by asymmetric tibial ears and a well-developed spine on the fore coxae (Brunner von Wattenwyl, 1891). In addition, generally Poreuomenini lack of mirror in the right tegmina ( Cestromoecha mundamensis Karsch, 1896 is an exception), and the stridulatory area of left tegmina is protruding posteriorly ( Figs.1–5 ).

Brunner von Wattenwyl (1878, 1891) included the following genera within the tribe Poreuomenini : Poreuomena Brunner von Wattenwyl, 1878 , Cestromoecha Karsch, 1893 , Zeuneria Karsch, 1889 and Morgenia Karsch, 1890 . Karsch (1892) listed within this tribe also the genus Gravenreuthia Karsch, 1892 , and Sjöstedt (1902) included Mangomaloba Sjöstedt, 1902 . However, characters of Gravenreuthia , Zeuneria , Mangomaloba and Morgenia (pattern of tegmina veinlets, regular presence of mirror in the right tegmina and presence of an inner spur on mid tibia in Morgenia ) ( Figs. 15–18 ) differ remarkably from those of true Poreuomenini ; it should be reasonable to move the above listed four genera outside the tribe Poreuomenini . A new genus, below described, Paraporeuomena n. gen., is tentatively ascribed to the tribe Poreuomenini , even if some differences have been detected ( Table 1).

Figures

FIGURES 1–5. Poreuomenini Brunner von Wattenwyl, 1878. Habitus in lateral view of Poreuomena sanghensis Massa, 2013 (1), Cestromoecha crassipes (Karsch, 1890) (2), Cestromoecha longicerca Massa, 2013 (3), stridulatory area of Poreuomena lamottei Chopard, 1954 (4) and Cestromoecha crassipes (5).

FIGURES 15–18. Habitus in lateral view of Gravenreuthia saturata Karsch, 1892 (15), Zeuneria longicercus Sjöstedt, 1929 (16), Mangomaloba latipennis Chopard, 1954 (17), and Morgenia hamuligera Karsch, 1890 (18).