Plangia nebulosa Karsch, 1890

Massa, Bruno, 2021, Orthoptera Tettigoniidae as indicators of biodiversity hotspots in the Guinean Forests of Central and West Tropical Africa, Zootaxa 4974 (3), pp. 401-458 : 429-430

Plangia nebulosa Karsch, 1890

Material examined. Cameroon, Barombi Station (♀ holotype) ( MfN) ; Liberia, Lofa County, Wologizi Mts., Ridge Camp 24-29.XI.2017 (Cold Cathode Light Trap), M. Aristophanous, S. Safian, G. Simonics, L. Smith (2♀) ; Liberia, Sinoe County, Krahn-Bassa Reserve, Juboe River , 7.5 km SW Pellokon town, 14-21.I.2018 ( MV Light Trap), M. Geiser, S. Safian, G. Simonics (1♀) ; Côte d’Ivoire, Yéalé Vill., Mt. Nimba , (380m) (light trap) 18-29.IV.2016, M. Aristophanous, M. Geiser, P. Moretto (3♂) ; Côte d’Ivoire, Yéalé Vill., Mt. Nimba (380m) (light trap) 8.V.2016, M. Aristophanous, M. Geiser, P. Moretto (1♂) ; Côte d’Ivoire, Mt. Tonkoui Peak (1171m) 9-16.IV.2016 (light Trap), M. Aristophanous, P. Moretto (3♂) ; Côte d’Ivoire, Taï National Park, Res. Station , 22.III-4.IV.2017 ( UV), A. Aristophanous, M. Aristophanous, M. Geiser, P. Moretto (7♀) ( ANHRT) ; Côte d’Ivoire, Taï National Park, Res. Station , 22.III-4.IV.2017 ( UV), P. Moretto (4♀) ; Côte d’Ivoire, Comoe, Zamou (245m) 5-6.VI.2015 ( UV), P. Moretto (2♂) ; Côte d’Ivoire, Mt. Tonkoui (1171m) 18-20.VI.2015 ( UV), P. Moretto (4♂) ; same data, 12-16.III.2017 ( UV), P. Moretto (3♂) ; same data, 21.III.2017 ( UV), P. Moretto (1♂) ; same data, 23.IV.2017 ( UV), P. Moretto (1♂) ; Togo Kpalimé, Ft. Missahohe (610m) 29-30.VII.2013 ( UV), P. Moretto (1♂) ; Central African Republic, Sangha Reserve , lac 1, 24-25.XI.2010 ( UV), P. Annoyer (1♀) ; Central African Republic, Angha, Mbaeré, Lac. 1, 10- 11.II.2012 ( UV), P. Annoyer (1♀) ( BMPC).

Remarks. Plangia nebulosa was described by Karsch (1890) on the female sex, whose main character is the colour of tegmina with vague dark spots. The subgenital plate of the holotype is apically rounded. Later Griffini (1908) reported another female and described the unknown male from Mukonje Farm ( Cameroon), with similar tegmina colours. Most specimens above listed show some vague spots on tegmina, males are lacking the black spot on the stridulatory area and have cerci incurved and black tipped, less stout than those of P. karschi . The stridulatory file consists of about 90 regularly spaced teeth.

Distribution. P. nebulosa should cover other than Cameroon, also Central African Republic, Togo, Côte d’Ivoire and Liberia. It was listed as Plangia sp. 2 by Massa et al. (2020).