Biogeographical and evolutionary aspects of a Guineo-Congolian bushcricket tribe: Revision of the genera Cestromoecha Karsch, 1893 and Poreuomena Brunner von Wattenwyl, 1878, with the description of new species (Orthoptera, Tettigoniidae, Phaneropterinae) Author Hemp, Claudia https://orcid.org/0000-0001-9170-7113 Dept Plant Systematics, Univ. of Bayreuth, Germany claudia.hemp@uni-bayreuth.de Author Massa, Bruno https://orcid.org/0000-0003-2127-0715 Dept of Agriculture, Food and Forest Sciences, University of Palermo, Italy text Deutsche Entomologische Zeitschrift 2021 2021-01-05 68 1 45 79 http://dx.doi.org/10.3897/dez.68.60193 journal article http://dx.doi.org/10.3897/dez.68.60193 1860-1324-1-45 227B739469C5447FB984250DF1ADFBE1 EE57E5591FE3500892459D0CF4FBB496 4435456 Poreuomena magnicerca (Massa, 2013) stat. nov. Figs 80-85 Poreuomena magnicerca Massa, 2013. J. Orth. Res. 22: 142; type locality: Central African Republic, Dzanga-Ndoki National Park (MSNG). Material examined. Central African Republic , Dzanga-Ndoki National Park , Lake 1, UV trap , 6-8.II.2012 ( Holotype ♂ ) (MSNG) ; same data ( paratype ♂ ) ; same data 11-12.II.2012 ( paratype ♂ ) ; same data 20-23.II.2012 ( paratype ♂ ) ; Central African Republic , Dzanga-Ndoki NP , Mboki 24.I.2012 ( 2 paratypes ♂ ) ; Central African Republic , Dzanga-Ndoki NP , Ndoki, Lake 1, camp 1, 15-16.II.2012 ( 2 paratypes ♂ ) (BMCP) ; Central African Republic , Dzanga-Sangha Special Reserve , Camp 1, 27-28.I.2005 (light) ( 1♂ ) ; Central African Republic , Dzanga-Ndoki NP , Lake 1, 22-23.XI.2010 , 30.XI-1.XII.2010 (light) ( 2♂ ) (PAPC) ; Central African Republic , Dzanga-Ndoki NP , Lake 1, 1-2.II.2012 , 4-5.II.2012 , 9-10.II.2012 , 12-13.II.2012 , 14-15.II.2012 17-18.II.2012 , 19-20.II.2012 , 23-24.II.2012 (light) ( 6♂ , 4♀ ) ; Central African Republic , Dzanga-Ndoki NP , Lake 7, 29.II-1.III.2012 (light) ( 1♂ ) (BMPC & PAPC). Diagnosis. Compare diagnoses at P. laeglae , P. tshuapa sp. nov., and P. forcipata . Description. P. magnicerca was described in the genus Cestromoecha , but actually belongs to the genus Poreuomena since sharing all generic characters with this genus and lacking a mirror on the right tegmen, typical for Cestromoecha . The stridulatory area of the left tegmen is black (Figs 80 , 81 ); the stridulatory file is long and straight and has about 50 teeth (Fig. 82 ) and is clearly longer and has smaller teeth than C. longicerca . The cerci are stout, long and incurved, with the basal part rounded and the apical part pointed; they appear trifid because, subapically, they have a well-developed upper laterally flattened bulge and an inner long spine (Figs 83 , 84 ). The subgenital plate is concave, triangular and elongated, with a deep concavity and with processes positioned very close to each other (Fig. 85 ). Colour. Probably predominantly green when alive, brown to tawny when preserved. The stridulatory area of the left tegmen and the area below black. Small black spots are present on the posterior margins of the tegmina. Measurements (mm). Males. Body length: 19.5-21.0; pronotum length: 3.9-4.0; pronotum height: 3.4-3.6; length of hind femora: 19.4-21.7; length of tegmina: 30.3-33.0. Females. Body length: 17.7-21.0; pronotum length: 4.1-4.9; pronotum height: 3.1-4.0; length of hind femora: 18.8-21.7; length of tegmina: 27.7-29.2; width of tegmina: 4.6-5.0; length of ovipositor: 5.1-5.9. Distribution. Known only from the Central African Republic. Figures 80-85. Morphological details of male Poreuomena magnicerca stat. nov. Stridulatory file on the underside of the left tegminal flap ( 80 ), stridulatory area with closed ( 81 ) and left opened wing ( 82 ), lateral ( 83 ) and dorsal view on apex ( 84 ), subgenital plate ( 85 ).