Cestromoecha tenuipes (Karsch, 1890)

Hemp, Claudia & Massa, Bruno, 2021, 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), Deutsche Entomologische Zeitschrift 68 (1), pp. 45-79 : 45

Cestromoecha tenuipes (Karsch, 1890) Figs 16-21

Cestromoecha tenuipes Karsch, 1890. Entom. Nachricht. 16: 363; type locality: Cameroon, Barombi Station (MfN).

Cestromoecha mundamensis Syn. Cestromoecha mundamensis Karsch, 1896 syn. nov. Karsch 1896. Stett. Entomol. Z. 57: 338; type locality: Cameroon, Mundame (MfN).

Material examined of C. tenuipes .

Cameroon, Barombi Station (2♀ syntypes) (MfN) ; Cameroon (1♀) (MCNM) ; Cameroon, Mundame (1♂, 2♀) (NHMW) ; Angola (1♀) ; Equatorial Guinea, Fernando Poo (1♂) ;

Material examined of C. mundamensis .

Equatorial Guinea, Fernando Poo , Musolo I. 1902, L. Fea (1♂, 1♀); Fernando Poo, Basile (1♀) (MSNG) ; Cameroon, Campo Ma'an National Park (lowland rainforest) (950 m alt.) 10-22. III. 2018 (MV Light Trap), Fotsing, Ishmael, Miles, Safian (1♂) (ANHRT) ; Central African Republic, Dzanga-Ndoki NP, Lake 1, 30-31. I. 2012, 11-12. II. 2012, 21-22. II. 2012 (light) (3♂) (BMPC & PAPC) .

Diagnosis.

Sjöstedt (1912) stated that Griffini (1905/6) found no differences between C. tenuipes and C. mundamensis , both described by Karsch. Sjöstedt mentions that a generic character on which Cestromoecha was erected, is a missing mirror on the right tegmen, while C. mundamensis has a well-developed mirror. However, both C. tenuipes (Fig. 17 ) and C. mundamensis males have well-developed mirrors and a comparison of the outer genitalic system of both C. tenuipes (Figs 19-21 ) and C. mundamensis showed no differences. Therefore, we suggest to synonymize both species that also have an overlapping distribution pattern to be synonymised.

Distribution.

Central to West Africa.

Figures

Figures 16 - 21. Morphological details of male Cestromoecha tenuipes. Habitus (16), stridulatory area (17), stridulatory file on the underside of the left tegmen (18), abdominal apex in lateral (19) and dorsal view (20) and subgenital plate (21).